Merenja 2 VTest

1. Унутрашња отпорност идеалног амперметра мора да буде једнака нули

True

False

The statement is true because an ideal ammeter is designed to have zero internal resistance. This means that it will not affect the circuit it is connected to and will accurately measure the current flowing through it. If the internal resistance of the ammeter is not zero, it will cause a voltage drop and affect the accuracy of the current measurement. Therefore, the internal resistance of an ideal ammeter must be equal to zero.

Explanation

The statement is true because an ideal ammeter is designed to have zero internal resistance. This means that it will not affect the circuit it is connected to and will accurately measure the current flowing through it. If the internal resistance of the ammeter is not zero, it will cause a voltage drop and affect the accuracy of the current measurement. Therefore, the internal resistance of an ideal ammeter must be equal to zero.

2. Periodična struja čija je srednja vrednost jednaka nuli je

Pulsirajuća

Naizmenična

Konstanta

Option 4

The correct answer is "naizmenična". "Naizmenična" means alternating in Serbian. In this context, it refers to an alternating current (AC) where the average value is zero. Unlike direct current (DC), which flows in only one direction, AC periodically changes direction. Therefore, it is correct to say that a periodic current with an average value of zero is "naizmenična".

Explanation

The correct answer is "naizmenična". "Naizmenična" means alternating in Serbian. In this context, it refers to an alternating current (AC) where the average value is zero. Unlike direct current (DC), which flows in only one direction, AC periodically changes direction. Therefore, it is correct to say that a periodic current with an average value of zero is "naizmenična".

3. Obično je najpogodnije da se filtriranje izvrši_________________normalizacije

The correct answer is "pre". This is because "pre" means "before" in English, and in the given sentence it is used to indicate that filtering should be done before normalization.

Explanation

The correct answer is "pre". This is because "pre" means "before" in English, and in the given sentence it is used to indicate that filtering should be done before normalization.

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4. _________ snaga je realna snaga koja se prenosi od izvora el energije potrošaču, odnosno od jednog dela elektroenergetskog sistema drugom

The given explanation states that "_________ snaga je realna snaga koja se prenosi od izvora el energije potrošaču, odnosno od jednog dela elektroenergetskog sistema drugom", which translates to "_________ power is the real power that is transferred from the power source to the consumer, or from one part of the power system to another." This suggests that the correct answer is "aktivna" (active) power, as it accurately describes the real power being transferred in an electrical energy system.

Explanation

The given explanation states that "_________ snaga je realna snaga koja se prenosi od izvora el energije potrošaču, odnosno od jednog dela elektroenergetskog sistema drugom", which translates to "_________ power is the real power that is transferred from the power source to the consumer, or from one part of the power system to another." This suggests that the correct answer is "aktivna" (active) power, as it accurately describes the real power being transferred in an electrical energy system.

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5. Kolika je srednja vrednost signala prikazanog na slici

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Explanation

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6. Temena vrednost prostoperiodične veličine zove se

The given question is asking for the term used to describe the constant value of a periodic quantity. The correct answer is "amplituda," which is a term used to describe the maximum amplitude or magnitude of a periodic signal.

Explanation

The given question is asking for the term used to describe the constant value of a periodic quantity. The correct answer is "amplituda," which is a term used to describe the maximum amplitude or magnitude of a periodic signal.

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7. U industrijskoj metrologiji najširu primenu imaju

Induktivni senzori

Otpornički senzori

Kapacitivni senzori

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Explanation

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8. _____________senzori zahtevaju dodatni izvor energije

Passive sensors do not require an additional power source as they rely on external stimuli to generate a response. This is in contrast to active sensors, which require an additional power source to function. Therefore, the given statement is suggesting that passive sensors do not require an additional energy source.

Explanation

Passive sensors do not require an additional power source as they rely on external stimuli to generate a response. This is in contrast to active sensors, which require an additional power source to function. Therefore, the given statement is suggesting that passive sensors do not require an additional energy source.

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9. __________________senzori energiju za svoj rad uzimaju iz medijuma čije stanje održavaju(mere)

The correct answer is "aktivni" because the sentence states that the sensors obtain energy for their operation from the medium whose state they maintain or measure. This implies that the sensors are actively involved in the process and are not passive.

Explanation

The correct answer is "aktivni" because the sentence states that the sensors obtain energy for their operation from the medium whose state they maintain or measure. This implies that the sensors are actively involved in the process and are not passive.

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10. Signali koji mogu da budu predstavljeni nekom određenom matematičkom funkcijom vremena zovu se determinističkom

Tačno

Netačno

The given statement is true. It states that signals that can be represented by a specific mathematical function of time are called deterministic. This means that these signals can be precisely predicted and have a fixed relationship between their input and output values. Deterministic signals are often used in various fields, such as engineering and physics, for modeling and analysis purposes.

Explanation

The given statement is true. It states that signals that can be represented by a specific mathematical function of time are called deterministic. This means that these signals can be precisely predicted and have a fixed relationship between their input and output values. Deterministic signals are often used in various fields, such as engineering and physics, for modeling and analysis purposes.

11. Signali koji mogu da budu predstavljeni nekom određenom matematičkom funkcijom vremena zovu se nederminističkom

Tačno

Netačno

The statement is incorrect. The correct answer is "Netačno" which means "False" in English. The given statement says that signals that can be represented by a specific mathematical function of time are called non-deterministic, but this is not true. Non-deterministic signals refer to signals that cannot be predicted or determined with certainty.

Explanation

The statement is incorrect. The correct answer is "Netačno" which means "False" in English. The given statement says that signals that can be represented by a specific mathematical function of time are called non-deterministic, but this is not true. Non-deterministic signals refer to signals that cannot be predicted or determined with certainty.

12. Signali čiji buduće vrednosti(promene) nisu unapred poznate zovu se nedetrministički

Tačno

Netačno

The given statement states that signals whose future values or changes are not known in advance are called nondeterministic. This means that the values or changes of these signals cannot be predicted or determined with certainty. Therefore, the correct answer is "Tačno" (True) as it accurately reflects the definition of nondeterministic signals.

Explanation

The given statement states that signals whose future values or changes are not known in advance are called nondeterministic. This means that the values or changes of these signals cannot be predicted or determined with certainty. Therefore, the correct answer is "Tačno" (True) as it accurately reflects the definition of nondeterministic signals.

13. Veličina koja predstavlja merenu veličinu i sa kojom je funkcionisalo povezana predstavlja

The given correct answer states that the measured quantity and its associated function represent an information parameter. This implies that the quantity being measured is used to gather information or provide data in a specific context or system. The term "informacioni parametar" suggests that this parameter is related to the transmission, processing, or storage of information.

Explanation

The given correct answer states that the measured quantity and its associated function represent an information parameter. This implies that the quantity being measured is used to gather information or provide data in a specific context or system. The term "informacioni parametar" suggests that this parameter is related to the transmission, processing, or storage of information.

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14. Moduo razlike graničnih vrednosti nazivnog opsega naziva se________________

The correct answer is "raspon". The term "raspon" in Serbian language refers to the range of the nominal values. It indicates the difference between the highest and lowest values in a given set or range. In this context, it is used to describe the difference between the upper and lower limits of the nominal range.

Explanation

The correct answer is "raspon". The term "raspon" in Serbian language refers to the range of the nominal values. It indicates the difference between the highest and lowest values in a given set or range. In this context, it is used to describe the difference between the upper and lower limits of the nominal range.

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15. Povezati opis funkcije filtra sa odgovarajućom oznakom

Ima samo jedan propusni opseg koji se proteže od nulte do granične učestanosti

Ima samo jedan propusni opseg, ograničen sa dve konačne učestanosti koje nisu nula ili beskonačne

Ima samo jedan propusni opseg koji obuhvata sve učestanosti veće od granične

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16. Merenje, u najopštijem slučaju, obuhvata

Prenos mernog signala

Obradu mernog signala

Prenos i obradu mernog signala

Option 4

The correct answer is "prenos i obradu mernog signala" which means "transmission and processing of the measurement signal" in English. This suggests that measurement, in its broadest sense, involves both the transmission and processing of the measurement signal. This implies that the measurement process includes not only the transfer of the signal from the source to the receiver but also the manipulation and analysis of the signal to obtain meaningful information or data.

Explanation

The correct answer is "prenos i obradu mernog signala" which means "transmission and processing of the measurement signal" in English. This suggests that measurement, in its broadest sense, involves both the transmission and processing of the measurement signal. This implies that the measurement process includes not only the transfer of the signal from the source to the receiver but also the manipulation and analysis of the signal to obtain meaningful information or data.

17. Propusni opseg filtra je opseg učestanosti u kome

Slabljenje ostaje veće od zadate vrednosti

Slabljenje ostaje manje od zadate vrednosti

Slabljenje ima vrednost 1 ili 0

The correct answer is "slabljenje ostaje manje od zadate vrednosti." This means that the attenuation (slabljenje) remains lower than the specified value within the frequency range (opseg učestanosti) of the filter. In other words, the filter allows the passage of frequencies with minimal attenuation, ensuring that the signal is not significantly weakened within the desired frequency range.

Explanation

The correct answer is "slabljenje ostaje manje od zadate vrednosti." This means that the attenuation (slabljenje) remains lower than the specified value within the frequency range (opseg učestanosti) of the filter. In other words, the filter allows the passage of frequencies with minimal attenuation, ensuring that the signal is not significantly weakened within the desired frequency range.

18. На основу дијаграма приказаног на слици, изабрати редни број мерог опсега мерене величине који доводи до промене оштећења.

3

1

2

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Explanation

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19. Količnik predstavlja

Pokazatelj usrednjavanja

Pokazatelj vrha

Pokazatelj oblika

The correct answer is "pokazatelj vrha" because "količnik" refers to the quotient or ratio between two numbers. In this context, "pokazatelj vrha" translates to "peak indicator" or "indicator of the peak." This suggests that the quotient is related to the highest point or maximum value in a given situation or data set.

Explanation

The correct answer is "pokazatelj vrha" because "količnik" refers to the quotient or ratio between two numbers. In this context, "pokazatelj vrha" translates to "peak indicator" or "indicator of the peak." This suggests that the quotient is related to the highest point or maximum value in a given situation or data set.

20. Količnik predstavlja

Pokazatelj oblika

Pokazatelj vrha

Pokazatelj usrednjavanja

The correct answer is "pokazatelj oblika" because the word "količnik" in the question suggests that it is referring to a ratio or a quotient. "Pokazatelj oblika" translates to "indicator of shape" in English, which indicates that the "količnik" is a measure or an indicator that describes the shape of something.

Explanation

The correct answer is "pokazatelj oblika" because the word "količnik" in the question suggests that it is referring to a ratio or a quotient. "Pokazatelj oblika" translates to "indicator of shape" in English, which indicates that the "količnik" is a measure or an indicator that describes the shape of something.

21. Uobičajeno je da se specijalizovani računari, namenjeni za upravljanje tehnološkim procesima nazivaju________________ računari

The correct answer is "procesni." In the given question, it is stated that specialized computers used for managing technological processes are commonly referred to as "procesni" computers. This term is used to describe the specific purpose and function of these computers, which is to handle and control various technological processes.

Explanation

The correct answer is "procesni." In the given question, it is stated that specialized computers used for managing technological processes are commonly referred to as "procesni" computers. This term is used to describe the specific purpose and function of these computers, which is to handle and control various technological processes.

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22. Struktura kondicionera određena je električnim karakteristikama senzora i praktično_________________od fizičke prirodne veličine koja se meri

The structure of the conditioner is determined by the electrical characteristics of the sensor and practically does not depend on the physical natural quantity being measured.

Explanation

The structure of the conditioner is determined by the electrical characteristics of the sensor and practically does not depend on the physical natural quantity being measured.

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23. Nosilac informacije koji mogućava njeno prenošenje kroz prostor i vreme zove se

The correct answer is "signal." A signal is a carrier of information that can be transmitted through space and time. It can be in the form of electrical, electromagnetic, or any other type of wave that carries information from one location to another. Signals are used in various communication systems to convey messages and enable the transfer of data between different devices or individuals.

Explanation

The correct answer is "signal." A signal is a carrier of information that can be transmitted through space and time. It can be in the form of electrical, electromagnetic, or any other type of wave that carries information from one location to another. Signals are used in various communication systems to convey messages and enable the transfer of data between different devices or individuals.

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24. Filtri tipa Batervort imaju maksimalno_______________________amplitudsku karakteristiku

Filtri tipa Batervort imaju maksimalno glatku amplitudsku karakteristiku. This means that these filters have a smooth amplitude response, meaning that the output signal remains relatively constant across different frequencies. This is important in applications where a consistent signal level is desired, such as in audio systems or communication systems. The smooth amplitude response of Batervort filters allows for accurate signal processing and filtering without introducing any distortion or variations in the output signal.

Explanation

Filtri tipa Batervort imaju maksimalno glatku amplitudsku karakteristiku. This means that these filters have a smooth amplitude response, meaning that the output signal remains relatively constant across different frequencies. This is important in applications where a consistent signal level is desired, such as in audio systems or communication systems. The smooth amplitude response of Batervort filters allows for accurate signal processing and filtering without introducing any distortion or variations in the output signal.

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25. Nepropusni opseg je opseg učestanosti u kome

Slabljenje ostaje manje od zadate vrednosti

Slabljenje ima vrednost 1 ili 0

Slabljenje ostaje veće od zadate vrednosti

The correct answer is "slabljenje ostaje veće od zadate vrednosti." This means that the attenuation remains greater than the specified value. In other words, the signal weakens but still remains above the desired threshold.

Explanation

The correct answer is "slabljenje ostaje veće od zadate vrednosti." This means that the attenuation remains greater than the specified value. In other words, the signal weakens but still remains above the desired threshold.

26. Signali prema intezitetu mogu da budu

Neprekidni

Digitalni

Analogni

Diskretni

The question is asking for the types of signals based on their intensity. The correct answer is "digitalni" (digital) and "analogni" (analog). Digital signals are discrete and have a finite number of possible values, while analog signals are continuous and can have an infinite number of possible values.

Explanation

The question is asking for the types of signals based on their intensity. The correct answer is "digitalni" (digital) and "analogni" (analog). Digital signals are discrete and have a finite number of possible values, while analog signals are continuous and can have an infinite number of possible values.

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27. Niz elemenata mernog sistema koji čine pojedinačnu putanju signala od senzora do izlaznog elementa zove se ______________________

The correct answer is "merni lanac." In Serbian, "merni lanac" translates to "measurement chain." This refers to the collection of elements in a measurement system that form the path of the signal from the sensor to the output element. The measurement chain includes components such as sensors, transducers, amplifiers, filters, and displays that work together to measure and display the desired quantity.

Explanation

The correct answer is "merni lanac." In Serbian, "merni lanac" translates to "measurement chain." This refers to the collection of elements in a measurement system that form the path of the signal from the sensor to the output element. The measurement chain includes components such as sensors, transducers, amplifiers, filters, and displays that work together to measure and display the desired quantity.

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28. ____________ senzori energiju za svoj rad uzimaju iz medijuma čije stanje održavaju(mere)

The given statement suggests that the sensors obtain energy for their functioning from the medium in which they operate, and they also maintain or measure the state of that medium. The term "aktivni" in Serbian translates to "active" in English. Therefore, the correct answer is "active," indicating that the sensors are actively involved in obtaining energy and maintaining the state of the medium.

Explanation

The given statement suggests that the sensors obtain energy for their functioning from the medium in which they operate, and they also maintain or measure the state of that medium. The term "aktivni" in Serbian translates to "active" in English. Therefore, the correct answer is "active," indicating that the sensors are actively involved in obtaining energy and maintaining the state of the medium.

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29. Povezati definiciju sa odgovarajućim nazivom

Razlika između temene i najmanje vrednosti u određenom vremenskom intervalu

Vrednost vremenski promenljive veličine u datom trenutku

Aritmetička sredina trenutnih vrednosti tokom određenog vremenskog intervala

Temena vrednost prostperiodične veličine

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30. Мерење електричне___________се превасходно врши са циљем обрачуна трошкова за преузету енергију.

Electricity consumption is primarily measured in order to calculate the cost of the energy used.

Explanation

Electricity consumption is primarily measured in order to calculate the cost of the energy used.

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31. На основу дијаграма приказаног на слици, изабрати редни број мерог опсега мерене величине који доводи до промене нуле.

1

2

3

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Explanation

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32. Izrazom određuje se

Efektivna vrednost

Srednja vrednost

Srednja apsolutna vrednost

The given correct answer is "efektivna vrednost". This term is used to determine the effective value of a quantity, which is the square root of the mean of the squared values of that quantity. It is commonly used in electrical engineering to calculate the root mean square (RMS) value of an alternating current or voltage signal. The effective value represents the magnitude of the signal that produces the same amount of power as a direct current or a constant voltage signal.

Explanation

The given correct answer is "efektivna vrednost". This term is used to determine the effective value of a quantity, which is the square root of the mean of the squared values of that quantity. It is commonly used in electrical engineering to calculate the root mean square (RMS) value of an alternating current or voltage signal. The effective value represents the magnitude of the signal that produces the same amount of power as a direct current or a constant voltage signal.

33. Deo mernog lanca koji ostvaruje spregu sa senzorom naziva se

The correct answer is "kondicioner" because a conditioner is a device that creates a connection or coupling with a sensor in order to achieve a desired effect or result. The term "deo mernog lanca" suggests that it is a component or part of a measurement chain, and "kondicioner" fits this description as it is commonly used in various measurement systems to condition or modify the signals from sensors for further processing or analysis.

Explanation

The correct answer is "kondicioner" because a conditioner is a device that creates a connection or coupling with a sensor in order to achieve a desired effect or result. The term "deo mernog lanca" suggests that it is a component or part of a measurement chain, and "kondicioner" fits this description as it is commonly used in various measurement systems to condition or modify the signals from sensors for further processing or analysis.

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34. Kod pretvarača sa izlomljenom karakteristikom prikazanom na slici postiže se bolja rezolucija u podopsegu 0 do Xg

Tačno

Netačno

The given statement is incorrect. The converter with a broken characteristic curve shown in the picture does not achieve better resolution in the subrange 0 to Xg.

Explanation

The given statement is incorrect. The converter with a broken characteristic curve shown in the picture does not achieve better resolution in the subrange 0 to Xg.

35. Promena vrednosti analogne veličine

Može da bude beskonačno mala

Može da bude samo neka iz ugla diskretnih vrednosti

Ne može da bude beskonačno mala

Option 4

The correct answer is "može da bude beskonačno mala" which translates to "it can be infinitely small." This implies that the change in the value of an analog quantity can be extremely minute or infinitesimal.

Explanation

The correct answer is "može da bude beskonačno mala" which translates to "it can be infinitely small." This implies that the change in the value of an analog quantity can be extremely minute or infinitesimal.

36. ______________ је елемент са два приступа типа улаз-излаз, намењен да преноси спектралне компоненте улазног сигнала у складу са одређеним законом.

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Explanation

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37. Povezati talasni oblik sa odgovarajucom funkcijom

u(t)=Usin^2 (2π/T*t)

u(t)=Usin(2π/T* t)

u(t)=|Usin^2 (2π/T*t)|

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38. Мерење електричне енергије остварује се___________________измерене електричне снаге током одређеног временског интервала.

Electric energy measurement is achieved by integrating the measured electric power over a certain time interval.

Explanation

Electric energy measurement is achieved by integrating the measured electric power over a certain time interval.

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39. На основу дијаграма приказаног на слици, изабрати редни број мерог опсега мерене величине који доводи до промене осетљивости.

2

1

3

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Explanation

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40. Кроз идеалан волтметар тече струја

True

False

In the given statement, it is mentioned that "current flows through an ideal voltmeter." However, this statement is incorrect. A voltmeter is a device used to measure voltage, not current. Therefore, the correct answer is False.

Explanation

In the given statement, it is mentioned that "current flows through an ideal voltmeter." However, this statement is incorrect. A voltmeter is a device used to measure voltage, not current. Therefore, the correct answer is False.

41. Efektivna vrednost prostoperiodičnog napona u(t)=Usin(wt+p)

Uef=U√2

U_ef=U/√2

U_ef=0

The correct answer is U_ef=U/√2. This is because the effective value (U_ef) of a sinusoidal voltage is equal to the peak value (U) divided by the square root of 2 (√2). The effective value represents the equivalent DC voltage that would produce the same amount of power in a resistive load as the sinusoidal voltage.

Explanation

The correct answer is U_ef=U/√2. This is because the effective value (U_ef) of a sinusoidal voltage is equal to the peak value (U) divided by the square root of 2 (√2). The effective value represents the equivalent DC voltage that would produce the same amount of power in a resistive load as the sinusoidal voltage.

42. Kod pretvarača sa izlomljenom karakteristikom prikazanom na slici postiže se bolja rezolucija u podopsegu Xg do Xmax

Tačno

Netačno

The statement suggests that the converter with a broken characteristic curve shown in the picture achieves better resolution in the subset Xg to Xmax. This means that within this range, the converter is able to accurately convert and represent the input values, resulting in a higher level of detail and precision in the output.

Explanation

The statement suggests that the converter with a broken characteristic curve shown in the picture achieves better resolution in the subset Xg to Xmax. This means that within this range, the converter is able to accurately convert and represent the input values, resulting in a higher level of detail and precision in the output.

43. Pri merenju neelektričnih veličina, informacija dobijena pomoću senzora

Nikada nije u obliku pogodnom za precizno merenje

Najčešće je u obliku pogodnom za precizno merenje

Najčešće nije u obliku pogodnom za precizno merenje

The correct answer is "najčešće nije u obliku pogodnom za precizno merenje." This answer suggests that when measuring non-electrical quantities, the information obtained from sensors is often not in a suitable form for precise measurement.

Explanation

The correct answer is "najčešće nije u obliku pogodnom za precizno merenje." This answer suggests that when measuring non-electrical quantities, the information obtained from sensors is often not in a suitable form for precise measurement.

44. Količnik predstavlja

Pokazatelj vrha

Pokazatelj usrednjavanja

Pokazatelj oblika

The correct answer is "pokazatelj usrednjavanja" because the term "količnik" in the question suggests that it is asking for a ratio or a quotient. "Pokazatelj usrednjavanja" translates to "average indicator" or "measure of central tendency," which is a type of ratio that represents the average or typical value in a set of data. Therefore, it is the most appropriate answer among the options given.

Explanation

The correct answer is "pokazatelj usrednjavanja" because the term "količnik" in the question suggests that it is asking for a ratio or a quotient. "Pokazatelj usrednjavanja" translates to "average indicator" or "measure of central tendency," which is a type of ratio that represents the average or typical value in a set of data. Therefore, it is the most appropriate answer among the options given.

45. Efektivna vrednost složenog periodičnog signala

Zavisi samo od efektivnih vrednosti njegovih harmonika, a ne zavisi od njihove početne faze Pn

Zavisi od efektivnih vrednosti njegovih harmonika, i od njihove početne faze Pn

Zavisi samo od početne faze njegovih harmonika Fn, a ne zavisi od njihovih efektivnih vrednosti

The effective value of a complex periodic signal depends only on the effective values of its harmonics, and not on their initial phase Pn.

Explanation

The effective value of a complex periodic signal depends only on the effective values of its harmonics, and not on their initial phase Pn.

46. Periodična struja čija je srednja vrednost različita od nule je

Naizmenična

Pulsirajuća

Konstantna

A periodic current with a non-zero average value is referred to as a pulsating current. This type of current fluctuates around a non-zero mean value, resulting in a pulsating waveform. It is different from an alternating current, which changes direction periodically, and a constant current, which has a steady and unchanging value.

Explanation

A periodic current with a non-zero average value is referred to as a pulsating current. This type of current fluctuates around a non-zero mean value, resulting in a pulsating waveform. It is different from an alternating current, which changes direction periodically, and a constant current, which has a steady and unchanging value.

47. Promena vrednosti digitalne veličine

Može da bude samo neka iz skupa diskretnih vrednosti

Može da bude beskonačno mala

Ne može da bude beskonačno mala

The correct answer states that the change in value of a digital quantity can only be one of the discrete values in a set. This means that digital quantities cannot have continuous or infinite values, but rather can only have specific, distinct values.

Explanation

The correct answer states that the change in value of a digital quantity can only be one of the discrete values in a set. This means that digital quantities cannot have continuous or infinite values, but rather can only have specific, distinct values.

48. На слици је приказан блок дијаграм

уређаја за мерење електричне енергије

уређаја за мерење електричне снаге

not-available-via-ai

Explanation

not-available-via-ai

49. U trofaznoj električnoj mreži naponi su fazno pomereni za ugao

120

240

180

60

In a three-phase electrical network, the voltages are phase-shifted by an angle of 120 degrees. This means that the voltage in each phase is offset by 120 degrees from the other phases. This phase shift allows for a more efficient and balanced distribution of power in the network.

Explanation

In a three-phase electrical network, the voltages are phase-shifted by an angle of 120 degrees. This means that the voltage in each phase is offset by 120 degrees from the other phases. This phase shift allows for a more efficient and balanced distribution of power in the network.

50. Interval vremena od trenutka kada se pobuda naglo promeni do trenutka kada odziv dostigne i ostane u određenim granicama oko svoje konačne stabilne vrednosti naziva se___________________

The interval of time from when the stimulus abruptly changes until the response reaches and remains within certain limits around its final stable value is called "vreme odziva" or "response time".

Explanation

The interval of time from when the stimulus abruptly changes until the response reaches and remains within certain limits around its final stable value is called "vreme odziva" or "response time".

Submit

51. Veličina koja predstavlja merenu veličinu i sa kojom je funkcionalno povezana zove se

Merni signal

Informacioni parametar

Merni parametar

The correct answer is "informacioni parametar". In the given question, it is stated that the size that represents the measured quantity and is functionally connected to it is called "informacioni parametar". This implies that the measured quantity is related to information, indicating that the correct term to use is "informacioni parametar".

Explanation

The correct answer is "informacioni parametar". In the given question, it is stated that the size that represents the measured quantity and is functionally connected to it is called "informacioni parametar". This implies that the measured quantity is related to information, indicating that the correct term to use is "informacioni parametar".

52. Raspodela veličine u funkciji učestalosti ili talasne dužine naziva se

The correct answer is "spektar." The question asks for the term used to describe the distribution of size in relation to frequency or wavelength. The term for this is "spektar," which refers to the range or distribution of values within a given parameter.

Explanation

The correct answer is "spektar." The question asks for the term used to describe the distribution of size in relation to frequency or wavelength. The term for this is "spektar," which refers to the range or distribution of values within a given parameter.

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53. Senzori u kojima se ostvaruje pretvaranje merene neelektrične veličine u električnu koja predstavlja jedan od parametara električne mreže: otpornost, induktivnost ili kapacitivnost su:

Pasivni i aktivni senzori

Pasivni senzori

Aktivni senzori

The correct answer is "pasivni senzori" because passive sensors are the ones that convert the measured non-electrical quantity into an electrical signal without the need for an external power source. In this case, the resistance, inductance, and capacitance sensors are all examples of passive sensors as they do not require any additional power to convert the measured quantity into an electrical signal.

Explanation

The correct answer is "pasivni senzori" because passive sensors are the ones that convert the measured non-electrical quantity into an electrical signal without the need for an external power source. In this case, the resistance, inductance, and capacitance sensors are all examples of passive sensors as they do not require any additional power to convert the measured quantity into an electrical signal.

54. Pri merenjima u industrijskim uslovima (procesna merenja) najveći broj senzora, pomoću kojih se merena neelektrična veličina transformiše u električni signal, predstavlja

Aktivne električne elemente

Pasivne električne elemente

Pasivne i aktivne električne elemente

In industrial conditions, process measurements involve transforming non-electrical variables into electrical signals using sensors. The majority of these sensors represent passive electrical elements.

Explanation

In industrial conditions, process measurements involve transforming non-electrical variables into electrical signals using sensors. The majority of these sensors represent passive electrical elements.

55. Primenom oznaka na vremenskom dijagramu napisati čemu je jednaka vrednost konstante k pretvarača sa linearnom karakteristikom

The question is asking to write the prime mark on the time diagram, indicating the value of the constant k of the converter with a linear characteristic.

Explanation

The question is asking to write the prime mark on the time diagram, indicating the value of the constant k of the converter with a linear characteristic.

56. Како се зове метод мерења наизменичних величина приказан на слици?

импицитни метод

експлицитни метод

термички метод

The correct answer is "импицитни метод". This method is used to measure alternating current and voltage. It is called "импицитни" because it involves calculating the values indirectly, using mathematical equations and algorithms. This method is commonly used in electrical engineering and allows for accurate measurement of alternating current and voltage.

Explanation

The correct answer is "импицитни метод". This method is used to measure alternating current and voltage. It is called "импицитни" because it involves calculating the values indirectly, using mathematical equations and algorithms. This method is commonly used in electrical engineering and allows for accurate measurement of alternating current and voltage.

57. Кроз идеалан волтметар не тече струја

Тачно

Нетачно

An ideal voltmeter measures voltage without drawing any current from the circuit it is connected to. This is because an ideal voltmeter has infinite resistance, so it does not create a parallel path for the current to flow through. Therefore, it does not affect the circuit and accurately measures the voltage across its terminals.

Explanation

An ideal voltmeter measures voltage without drawing any current from the circuit it is connected to. This is because an ideal voltmeter has infinite resistance, so it does not create a parallel path for the current to flow through. Therefore, it does not affect the circuit and accurately measures the voltage across its terminals.

58. Povezati prikazanu prenosnu funkciju sa odgovarajućim tipom filtra

A

B

C

D

Submit

59. Уколико филтар има линеарну фазну карактеристику, фазна карактеристика

не утиче на изобличење сигнала који пролазе кроз филтар

утиче на изобличење сигнала који пролазе кроз филтар

If the filter has a linear phase characteristic, it means that the phase shift introduced by the filter is directly proportional to the frequency of the input signal. In this case, the phase characteristic does not affect the distortion or alteration of the signal passing through the filter. Therefore, the correct answer is "не утиче на изобличење сигнала који пролазе кроз филтар" which translates to "does not affect the distortion of the signal passing through the filter".

Explanation

If the filter has a linear phase characteristic, it means that the phase shift introduced by the filter is directly proportional to the frequency of the input signal. In this case, the phase characteristic does not affect the distortion or alteration of the signal passing through the filter. Therefore, the correct answer is "не утиче на изобличење сигнала који пролазе кроз филтар" which translates to "does not affect the distortion of the signal passing through the filter".

60. Ватметар се користи за мерење

електричне снаге

електричног потенцијала

електричне енергије

A ватметар (wattmeter) is an instrument used to measure the electric power or electrical power consumption in a circuit. It measures the rate at which electrical energy is being transferred or used, which is commonly referred to as electric power. Therefore, the correct answer is "електричне снаге" which translates to "electric power" in English.

Explanation

A ватметар (wattmeter) is an instrument used to measure the electric power or electrical power consumption in a circuit. It measures the rate at which electrical energy is being transferred or used, which is commonly referred to as electric power. Therefore, the correct answer is "електричне снаге" which translates to "electric power" in English.

61. Funkcija prikazana na slici

Predstavljena izrazom y(O)=sin(O)

Aperiodična

Neparna

Periodična

Predstavljena izrazom z(O)=cos(O)

Parna

The given function is represented by the expression z(O) = cos(O), which is a cosine function. A cosine function is periodic because it repeats itself after a certain interval, which in this case is 2π. Additionally, the cosine function is an even function, meaning that it is symmetric with respect to the y-axis. Therefore, it is correct to say that the function is periodic and represented by the expression z(O) = cos(O), and it is also correct to say that it is an even function.

Explanation

The given function is represented by the expression z(O) = cos(O), which is a cosine function. A cosine function is periodic because it repeats itself after a certain interval, which in this case is 2π. Additionally, the cosine function is an even function, meaning that it is symmetric with respect to the y-axis. Therefore, it is correct to say that the function is periodic and represented by the expression z(O) = cos(O), and it is also correct to say that it is an even function.

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62. Svojstvo merila kojim svoja metrolo[ka svojstva održavanepromenljivim tokom vremena naziva se____________

The correct answer is "stabilnost." In the given question, it is stated that the property of a measurement instrument that maintains its metrological properties unchanged over time is called "stabilnost." This suggests that stability is the characteristic being referred to in the question.

Explanation

The correct answer is "stabilnost." In the given question, it is stated that the property of a measurement instrument that maintains its metrological properties unchanged over time is called "stabilnost." This suggests that stability is the characteristic being referred to in the question.

Submit

63. Koji je tip signala prikazan na slici

Prostoperiodični

Kvaziperiodični

Složenoperiodični

The correct answer is "složenoperiodični" (complex periodic). This means that the signal shown in the picture is a combination of multiple periodic signals with different frequencies and amplitudes. It is not a simple periodic signal with a single frequency or a quasi-periodic signal that is not strictly periodic.

Explanation

The correct answer is "složenoperiodični" (complex periodic). This means that the signal shown in the picture is a combination of multiple periodic signals with different frequencies and amplitudes. It is not a simple periodic signal with a single frequency or a quasi-periodic signal that is not strictly periodic.

64. Izrazom određuje se

Efektivna vrednost

Srednja apsolutna vrednost

Srednja vrednost

The correct answer is "srednja vrednost" because the given expression is used to determine the average value of something. It is a mathematical term that represents the sum of all values divided by the total number of values.

Explanation

The correct answer is "srednja vrednost" because the given expression is used to determine the average value of something. It is a mathematical term that represents the sum of all values divided by the total number of values.

65. Sposobnost merila da ne menja merenu veličinu zove se

Stabilnost

Tačnost

Transparentnost

The correct answer is "transparentnost". This term refers to the ability of a measuring instrument to not alter the measured quantity. In other words, it means that the instrument does not interfere with the accuracy or reliability of the measurement. It implies that the instrument provides a clear and unbiased representation of the measured value without introducing any distortions or errors.

Explanation

The correct answer is "transparentnost". This term refers to the ability of a measuring instrument to not alter the measured quantity. In other words, it means that the instrument does not interfere with the accuracy or reliability of the measurement. It implies that the instrument provides a clear and unbiased representation of the measured value without introducing any distortions or errors.

66. Povezati realizaciju filtra sa odgovarajućim izrazom za prenosnu funkciju i nazivom

Propusnih visokih učestanosti

Propusnih niskih učestanosti

Propusnih opsega učestanosti

The correct answer is "propusnih visokih učestanosti." This answer suggests that the realization of the filter is associated with the term "propusnih visokih učestanosti," which translates to "high-frequency passband." This implies that the filter allows high-frequency signals to pass through while attenuating low-frequency signals. The other options, "propusnih niskih učestanosti" (low-frequency passband) and "propusnih opsega učestanosti" (frequency passbands), do not accurately describe the association between the filter realization and the term.

Explanation

The correct answer is "propusnih visokih učestanosti." This answer suggests that the realization of the filter is associated with the term "propusnih visokih učestanosti," which translates to "high-frequency passband." This implies that the filter allows high-frequency signals to pass through while attenuating low-frequency signals. The other options, "propusnih niskih učestanosti" (low-frequency passband) and "propusnih opsega učestanosti" (frequency passbands), do not accurately describe the association between the filter realization and the term.

Submit

67. Merni i upravljački uređaji različitog stepena složenosti, posredstvom kojih se ostvaruje sprega sa procesom, predstavljau_______________jedinice specijalnog računara

The given answer "spoljne" is correct because it completes the sentence in a grammatically correct way. It suggests that "Merni i upravljački uređaji različitog stepena složenosti, posredstvom kojih se ostvaruje sprega sa procesom, predstavljau spoljne jedinice specijalnog računara." This translates to "Measurement and control devices of different levels of complexity, through which a connection with the process is established, represent external units of a special computer."

Explanation

The given answer "spoljne" is correct because it completes the sentence in a grammatically correct way. It suggests that "Merni i upravljački uređaji različitog stepena složenosti, posredstvom kojih se ostvaruje sprega sa procesom, predstavljau spoljne jedinice specijalnog računara." This translates to "Measurement and control devices of different levels of complexity, through which a connection with the process is established, represent external units of a special computer."

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68. Spora promena metrološkog svojstva merila naziva se____________________

The correct answer is "pomak." This is because "pomak" translates to "shift" in English, which refers to a change or movement in the metrological property of a measuring instrument. Therefore, the correct term for a significant change in the metrological property of a measuring instrument is "pomak."

Explanation

The correct answer is "pomak." This is because "pomak" translates to "shift" in English, which refers to a change or movement in the metrological property of a measuring instrument. Therefore, the correct term for a significant change in the metrological property of a measuring instrument is "pomak."

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69. Kolika je distorzija drugog harmonika (%D2=?) ako je napon

10%

0,1%

1%

The question is asking for the distortion of the second harmonic (%D2) given different voltage values. The answer states that the distortion of the second harmonic is 10%. This means that when the voltage is at 10%, 0.1%, or 1%, the distortion of the second harmonic will be 10%.

Explanation

The question is asking for the distortion of the second harmonic (%D2) given different voltage values. The answer states that the distortion of the second harmonic is 10%. This means that when the voltage is at 10%, 0.1%, or 1%, the distortion of the second harmonic will be 10%.

70. Izrazom određuje se

Srednja vrednost

Srednja apsolutna vrednost

Efektivna vrednost

The correct answer is "srednja apsolutna vrednost" (mean absolute value). This term is used to determine the average magnitude or absolute value of a set of numbers. It is calculated by summing the absolute values of all the numbers in the set and then dividing by the total number of values. This measure is often used in statistics and signal processing to quantify the average deviation from zero or the central tendency of a dataset.

Explanation

The correct answer is "srednja apsolutna vrednost" (mean absolute value). This term is used to determine the average magnitude or absolute value of a set of numbers. It is calculated by summing the absolute values of all the numbers in the set and then dividing by the total number of values. This measure is often used in statistics and signal processing to quantify the average deviation from zero or the central tendency of a dataset.

71. Kolika je distorzija trećeg harmonika (%D3=7) ako je napon

10%

0,5%

5%

The correct answer is 5%. The question is asking for the distortion of the third harmonic (%D3) given different voltage values. However, the question is incomplete and not readable, so it is difficult to provide a specific explanation.

Explanation

The correct answer is 5%. The question is asking for the distortion of the third harmonic (%D3) given different voltage values. However, the question is incomplete and not readable, so it is difficult to provide a specific explanation.

72. Sa ciljem uspešnijeg prenosa, obrade ili zapisivanja, neelektrične merene veličine se preslikavaju na _________________

In order to achieve a more successful transmission, processing, or recording, non-electrical measured quantities are converted into electrical signals. This is done because electrical signals are easier to manipulate and transmit compared to non-electrical signals.

Explanation

In order to achieve a more successful transmission, processing, or recording, non-electrical measured quantities are converted into electrical signals. This is done because electrical signals are easier to manipulate and transmit compared to non-electrical signals.

Submit

73.

Drift nule

Drift osetljivosti

Kombinovani drift

not-available-via-ai

Explanation

not-available-via-ai

74.

Drift nule

Drift osetljivosti

Kombinovani drift

not-available-via-ai

Explanation

not-available-via-ai

75. Способност сензора да у референтним радним условима даје показивања блиска стварној вредности мерене величинe представља

тачност

мерни опсег

мерно подручје

The given statement is in Serbian and translates to "The ability of the sensor to provide readings close to the actual measured value under reference working conditions is called accuracy." Therefore, the correct answer is "тачност" which means accuracy in Serbian.

Explanation

The given statement is in Serbian and translates to "The ability of the sensor to provide readings close to the actual measured value under reference working conditions is called accuracy." Therefore, the correct answer is "тачност" which means accuracy in Serbian.

76. Ako je struja na izlazu mernog pretvarača temperature na osnovu karakteristike prikazane na slici odrediti vrednost konstante prenosa k pretvarača

not-available-via-ai

Explanation

not-available-via-ai

77. Ako je ulaz mernog pretvarača temperature u opsegu 500C do 700C,a izlaz naponski signal u opsegu -5V do +5V, kolika je vrednost konstante prenosa pretvarača?

K=0,5v/C

K=1V/C

K=0,05V/C

The given question states that the input range of the temperature transducer is from 500C to 700C, and the output voltage signal range is from -5V to +5V. The question asks for the value of the transfer constant of the transducer. The correct answer is k=0.05V/C. This means that for every 1 degree Celsius change in temperature, the output voltage of the transducer will change by 0.05V.

Explanation

The given question states that the input range of the temperature transducer is from 500C to 700C, and the output voltage signal range is from -5V to +5V. The question asks for the value of the transfer constant of the transducer. The correct answer is k=0.05V/C. This means that for every 1 degree Celsius change in temperature, the output voltage of the transducer will change by 0.05V.

78. Uslovi upotrebe koji moraju da budu ispunjeni tokom merenja da bi merni instrument ili merni sistem radio kao što je projektovan su:

Nazivni uslovi

Referentni sulovi

Granični uslovi

The explanation for the correct answer is that "nazivni uslovi" refers to the nominal conditions that need to be met during measurement for the measuring instrument or system to function as designed. These conditions are typically predetermined and specified by the manufacturer or designer of the instrument or system.

Explanation

The explanation for the correct answer is that "nazivni uslovi" refers to the nominal conditions that need to be met during measurement for the measuring instrument or system to function as designed. These conditions are typically predetermined and specified by the manufacturer or designer of the instrument or system.

79. Deo mernog sistema na koji neposredno deluje veličina koju treba meriti naziva se

A sensor is a device that directly interacts with the quantity that needs to be measured in a complex system. It is designed to detect and respond to changes in the physical environment, converting them into electrical signals or other forms of output that can be easily measured and analyzed. In this context, a sensor is the most appropriate term to describe the component of a multiple system that directly influences the measurement of a specific variable.

Explanation

A sensor is a device that directly interacts with the quantity that needs to be measured in a complex system. It is designed to detect and respond to changes in the physical environment, converting them into electrical signals or other forms of output that can be easily measured and analyzed. In this context, a sensor is the most appropriate term to describe the component of a multiple system that directly influences the measurement of a specific variable.

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80. Podudaranost realne karakteristike Yr i idealne statičke karakteristike Yi predstavlja

Linearnost

Merno područje

Osetljivost

The similarity between the real characteristic Yr and the ideal static characteristic Yi represents linearity.

Explanation

The similarity between the real characteristic Yr and the ideal static characteristic Yi represents linearity.

81. Ако је на улаз једностраног усмерача доведен сигнал повезати карактеристике сигнала са одговарајућим вредностима

2X/π

X

X/√2

Submit

82. Волтметар са покретним гвожђем може да мери наизменични напон чија је учестаност 10kHz.

True

False

A voltmeter with a moving iron can measure alternating voltage with a frequency of up to 50Hz. Since the given frequency is 10kHz, it is higher than the maximum frequency that can be measured by a voltmeter with a moving iron. Therefore, the statement is false.

Explanation

A voltmeter with a moving iron can measure alternating voltage with a frequency of up to 50Hz. Since the given frequency is 10kHz, it is higher than the maximum frequency that can be measured by a voltmeter with a moving iron. Therefore, the statement is false.

83. Да ли волтметар са покретним гвожђем може да мери наизменични напон чија је учестаност 10kH

не може

зависи од величине напона

може

A voltmeter with a moving iron cannot measure alternating voltage with a frequency of 10 kHz. Moving iron voltmeters are designed to measure direct current or low-frequency alternating current. The moving iron mechanism is not suitable for measuring high-frequency alternating current, such as 10 kHz. Therefore, the correct answer is "не може" (cannot).

Explanation

A voltmeter with a moving iron cannot measure alternating voltage with a frequency of 10 kHz. Moving iron voltmeters are designed to measure direct current or low-frequency alternating current. The moving iron mechanism is not suitable for measuring high-frequency alternating current, such as 10 kHz. Therefore, the correct answer is "не може" (cannot).

84.

Drift nule

Drift osetljivosti

Kombinovani drift

not-available-via-ai

Explanation

not-available-via-ai

85. Povezati realizaciju filtra sa odgovarajućim izrazom za prenosnu funkicju i nazivom

Propusnih visokih učestanosti

Propusnih opsega učestanosti

Propusnih niskih učestanosti

not-available-via-ai

Explanation

not-available-via-ai

Submit

86. Nelinearna funkcija otpornosti

PTC otporniku

NTC otporniku

Platinskom senzoru

The correct answer is "platinskom senzoru." This suggests that the question is asking about the type of resistance function associated with a platinum sensor. Platinum sensors are commonly used in various applications, such as temperature measurement, due to their stable and predictable resistance characteristics. Unlike PTC (Positive Temperature Coefficient) resistors, which exhibit an increase in resistance with temperature, and NTC (Negative Temperature Coefficient) resistors, which show a decrease in resistance with temperature, platinum sensors typically have a linear resistance-temperature relationship. Therefore, the correct answer is the platinum sensor, as it is associated with a linear resistance function.

Explanation

The correct answer is "platinskom senzoru." This suggests that the question is asking about the type of resistance function associated with a platinum sensor. Platinum sensors are commonly used in various applications, such as temperature measurement, due to their stable and predictable resistance characteristics. Unlike PTC (Positive Temperature Coefficient) resistors, which exhibit an increase in resistance with temperature, and NTC (Negative Temperature Coefficient) resistors, which show a decrease in resistance with temperature, platinum sensors typically have a linear resistance-temperature relationship. Therefore, the correct answer is the platinum sensor, as it is associated with a linear resistance function.

87.

fundamentalna komponenta

harmonici

srednja vrednost (jednosmerna komponenta)

Submit

88. Nelinearna funkcija otpornosti odgovara

Ntc otporniku

PTC otporniku

Platinskom senzoru

The correct answer is Ntc otporniku. The term "Ntc" refers to a type of resistor called a Negative Temperature Coefficient resistor. These resistors have a resistance that decreases as the temperature increases. This type of resistor is commonly used in temperature sensing and control applications. Therefore, it can be concluded that the non-linear resistance function corresponds to an Ntc resistor.

Explanation

The correct answer is Ntc otporniku. The term "Ntc" refers to a type of resistor called a Negative Temperature Coefficient resistor. These resistors have a resistance that decreases as the temperature increases. This type of resistor is commonly used in temperature sensing and control applications. Therefore, it can be concluded that the non-linear resistance function corresponds to an Ntc resistor.

89. Nosilac informacije (izlazni signal) može biti napon, struja ili naelektrisanje kdo

Aktivnih i pasivnih snezora

Aktivnih (generatorskih) senzora

Pasivnih senzora

The correct answer is "aktivnih (generatorskih) senzora" because it states that the information carrier (output signal) can be voltage, current, or charge, and it specifically mentions "aktivnih (generatorskih) senzora" which translates to "active (generating) sensors." This implies that the output signal is generated by these sensors, indicating that they are the correct answer.

Explanation

The correct answer is "aktivnih (generatorskih) senzora" because it states that the information carrier (output signal) can be voltage, current, or charge, and it specifically mentions "aktivnih (generatorskih) senzora" which translates to "active (generating) sensors." This implies that the output signal is generated by these sensors, indicating that they are the correct answer.

90. У моделу сензора који је описан диференцијалном једначином константа k има димензију

одређену димензијама величина побуде и одзива

одређену димензијама величине одзива

времена

одређену димензијама величине побуде

The correct answer is "одређену димензијама величина побуде и одзива" which means "determined by the dimensions of the stimulus and response variables". This means that the constant k in the sensor model is determined by the dimensions of the variables that represent the stimulus and response. The dimensions of these variables play a role in determining the value of the constant k in the differential equation that describes the sensor model.

Explanation

The correct answer is "одређену димензијама величина побуде и одзива" which means "determined by the dimensions of the stimulus and response variables". This means that the constant k in the sensor model is determined by the dimensions of the variables that represent the stimulus and response. The dimensions of these variables play a role in determining the value of the constant k in the differential equation that describes the sensor model.

91. Pokazatelj vrha Ky je definisan kao količnik

Temene vrednosti i srednje apsolutne vrednosti periodične veličine

Temene vrednosti i efektivne vrednosti periodične veličine

Efektivne vrednosti i srednje apsolutne vrednosti periodične veličine

The correct answer is "Temene vrednosti i efektivne vrednosti periodične veličine." This is because the peak value of a periodic quantity is the maximum value it reaches during one complete cycle, while the effective value is the root mean square (RMS) value of the quantity over one complete cycle. These two values are used to characterize the amplitude and magnitude of a periodic quantity.

Explanation

The correct answer is "Temene vrednosti i efektivne vrednosti periodične veličine." This is because the peak value of a periodic quantity is the maximum value it reaches during one complete cycle, while the effective value is the root mean square (RMS) value of the quantity over one complete cycle. These two values are used to characterize the amplitude and magnitude of a periodic quantity.

92. Funkcija prikazana na slici

Neparna

Predstavljena izrazom z(O)=cos(O)

Predstavljena izrazom y(O)=sin(O)

Periodična

Aperiodična

Parna

The given answer is correct because the function is described as "neparna" which means odd in Serbian. This means that the function satisfies the property f(-x) = -f(x), which is true for the function y(O) = sin(O). Additionally, the function is also described as "periodična" which means periodic, indicating that it repeats itself after a certain interval.

Explanation

The given answer is correct because the function is described as "neparna" which means odd in Serbian. This means that the function satisfies the property f(-x) = -f(x), which is true for the function y(O) = sin(O). Additionally, the function is also described as "periodična" which means periodic, indicating that it repeats itself after a certain interval.

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93. Prema_______________ osnovi načina rada, senzori se mogu klasifikovati kao:mehanički,električni,optički

The given statement mentions different types of sensors based on their mode of operation, which are mechanical, electrical, optical, and physical. Therefore, the correct answer is "physical" as it is one of the classifications of sensors based on their mode of operation.

Explanation

The given statement mentions different types of sensors based on their mode of operation, which are mechanical, electrical, optical, and physical. Therefore, the correct answer is "physical" as it is one of the classifications of sensors based on their mode of operation.

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94. Koji je tip filtra prikazan na slici?

HPF prvog reda

LPF drugog reda

HPF drugog reda

LPF prvog reda

The correct answer is LPF drugog reda. The term LPF stands for Low Pass Filter, which allows low-frequency signals to pass through while attenuating high-frequency signals. The phrase "drugog reda" translates to "second order," indicating that the filter has a steeper roll-off and provides a greater level of attenuation for high-frequency signals compared to a first-order LPF. Therefore, the correct answer suggests that the filter shown in the image is a second-order low pass filter.

Explanation

The correct answer is LPF drugog reda. The term LPF stands for Low Pass Filter, which allows low-frequency signals to pass through while attenuating high-frequency signals. The phrase "drugog reda" translates to "second order," indicating that the filter has a steeper roll-off and provides a greater level of attenuation for high-frequency signals compared to a first-order LPF. Therefore, the correct answer suggests that the filter shown in the image is a second-order low pass filter.

95. Повезати назив снаге са одговарајућом мерном јединицом.

Реактивна снага (Q)

Активна снага (P)

Комплексна снага

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96. Povežite nazive komponenata Furijevog reda periodične veličine sa odgovarajućim opisom

Komponenta Furijevog reda periodične veličine, čiji je red veći od1

Veličina dobijena oduzimanjem osnovne komponente od naizmenične veličine

Komponenta prvog reda Furijevog reda periodične veličine

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97. Kada se na ulaz kondicionera dovodi signal niskog nivoa, za tačno merenje neophodna je primena_________________

When a low-level signal is inputted into the air conditioner, the use of a differential measurement is necessary for accurate measurement.

Explanation

When a low-level signal is inputted into the air conditioner, the use of a differential measurement is necessary for accurate measurement.

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98. Impulsno napajanje senzora se koristi da bi se eliminisao uticaj

Jednosmernog ili naizmeničnog signala greške

Jednosmernog signala greške

Naizmeničnog signala greške

The correct answer is "jednosmernog signala greške" (one-way error signal). Impulse power supply for sensors is used to eliminate the influence of one-way error signals, which can be either direct current or alternating current signals.

Explanation

The correct answer is "jednosmernog signala greške" (one-way error signal). Impulse power supply for sensors is used to eliminate the influence of one-way error signals, which can be either direct current or alternating current signals.

99. Izraz

Pulsirajući napon

Naizmenični i pulsirajući napon

Naizmenični napon

The correct answer is "pulsirajući napon". This term refers to a type of voltage that fluctuates or pulsates in a periodic manner. Unlike direct current (DC) which has a constant voltage level, pulsating voltage has variations in its magnitude or frequency. This can occur in alternating current (AC) circuits when there are disturbances or irregularities in the waveform. Pulsating voltage can have implications for the performance and operation of electrical devices and systems.

Explanation

The correct answer is "pulsirajući napon". This term refers to a type of voltage that fluctuates or pulsates in a periodic manner. Unlike direct current (DC) which has a constant voltage level, pulsating voltage has variations in its magnitude or frequency. This can occur in alternating current (AC) circuits when there are disturbances or irregularities in the waveform. Pulsating voltage can have implications for the performance and operation of electrical devices and systems.

100. Izraz opisuje

Naizmeničan napon

Pulsirajući napon

Naizmeničan i pulsirajući napon

The given answer "Naizmeničan napon" is correct because the term "naizmeničan" in Serbian translates to "alternating" in English. Therefore, the expression describes an alternating voltage, which refers to a type of electrical current that periodically changes direction.

Explanation

The given answer "Naizmeničan napon" is correct because the term "naizmeničan" in Serbian translates to "alternating" in English. Therefore, the expression describes an alternating voltage, which refers to a type of electrical current that periodically changes direction.

101. Ako je , funkcija je:

Periodična

Kvaziperiodična

Aperiodična

The question is asking about the nature of the function given a certain condition. However, the condition is missing from the question, making it incomplete and unreadable. Therefore, an explanation cannot be provided.

Explanation

The question is asking about the nature of the function given a certain condition. However, the condition is missing from the question, making it incomplete and unreadable. Therefore, an explanation cannot be provided.

102. Ekstremni uslovi koje merni instrument ili merni sistem treba da izdrži bez oštećenja i bez gubljenja svojih metroloških svojstava kada se kasnije upotrebi u nazivnim uslovima rada su_____________uslovi

The correct answer is "granični" because it refers to the extreme conditions that a measuring instrument or measuring system should be able to withstand without any damage or loss of its metrological properties. These conditions are considered the limit or boundary beyond which the instrument may not function properly.

Explanation

The correct answer is "granični" because it refers to the extreme conditions that a measuring instrument or measuring system should be able to withstand without any damage or loss of its metrological properties. These conditions are considered the limit or boundary beyond which the instrument may not function properly.

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103.

множач аналогних величина

делитељ аналогних величина

диференцијатор аналогних величина

интегратор аналогних величина

not-available-via-ai

Explanation

not-available-via-ai

104.

активној снази

привидној снази

реактивној снази

not-available-via-ai

Explanation

not-available-via-ai

105. Скуп података између два репера на скали који одговарају најмањој и највећој вредности (4 – 20 mA, 0 – 20 bar, 500 – 2000 °C, ...) представља

мерно подручје

тачност

мерни опсег

The correct answer is "мерно подручје" which translates to "measuring range" in English. The question is asking for the term that represents the range between the minimum and maximum values on a scale, such as 4-20 mA, 0-20 bar, or 500-2000 °C. The measuring range refers to the span of values within which the instrument or device is capable of accurately measuring.

Explanation

The correct answer is "мерно подручје" which translates to "measuring range" in English. The question is asking for the term that represents the range between the minimum and maximum values on a scale, such as 4-20 mA, 0-20 bar, or 500-2000 °C. The measuring range refers to the span of values within which the instrument or device is capable of accurately measuring.

106. Koji je tip filtra prikazan na slici

Filtar propusnih visokih učestanosti

Filtar trećeg reda

Filtar propusnih niskih učestanosti tipa Batervort

Filtar prvog reda

Filtar propusnih niskih učestanosti

Filtar propusnih visokih učestanosti tipa Batervort

Filtar drugog reda

not-available-via-ai

Explanation

not-available-via-ai

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107. Povezati realizaciju filtra sa odgovarajućim izrazom za prenosnu funkciju i nazivom

Propusnih opsega učestanosti

Propusnih niskih učestanosti

Propusnih visokih učestanosti

The correct answer is "propusnih opsega učestanosti". This answer suggests that the realization of a filter is connected to the corresponding expression for the transfer function and the name of the frequency passbands. In other words, the implementation of a filter is associated with the specific frequency ranges through which the signal can pass.

Explanation

The correct answer is "propusnih opsega učestanosti". This answer suggests that the realization of a filter is connected to the corresponding expression for the transfer function and the name of the frequency passbands. In other words, the implementation of a filter is associated with the specific frequency ranges through which the signal can pass.

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108. Prema______________ prirodi veličine koja se meri, senzori se mogu podeliti u dve osnovne grupe: senzore električnih i senzore neelektričnih veličina

The correct answer is "fizičkoj". The question is asking for an explanation of the phrase "Prema fizičkoj prirodi veličine koja se meri, senzori se mogu podeliti u dve osnovne grupe: senzore električnih i senzore neelektričnih veličina." This phrase is stating that sensors can be divided into two basic groups based on the physical nature of the measured quantity: electric sensors and non-electric sensors. The word "fizičkoj" in the answer refers to the physical nature of the measured quantity.

Explanation

The correct answer is "fizičkoj". The question is asking for an explanation of the phrase "Prema fizičkoj prirodi veličine koja se meri, senzori se mogu podeliti u dve osnovne grupe: senzore električnih i senzore neelektričnih veličina." This phrase is stating that sensors can be divided into two basic groups based on the physical nature of the measured quantity: electric sensors and non-electric sensors. The word "fizičkoj" in the answer refers to the physical nature of the measured quantity.

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109. Povezati oznaku signala na ulazu i izlazu sa odgovarajućim talasnim oblicima

A

B

C

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110.

kolo za dobijanje srednje vrednosti

izvor napajanja

prilagođenje strujnog mernog signala

prilagođenje naponskog mernog signala

potrošač čija se snaga meri

množač

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111. Ako je ulaz mernog pretvarača temperature u opsegu 500C do 700C, aizlaz naponski signal u opsegu 5V do +V, koji od navedenih izraza opisuje preslikavanje temperature u napon?

U0=-5V+ko(500C-O)

U0=5V+ko(500C-O)

U0=5V+ko(O-500C)

U0=-5V+ko(O-500C)

The correct answer is U0=-5V+ko(O-500C) because it represents the mapping of temperature to voltage. The negative sign indicates that as the temperature increases, the voltage decreases. The term (O-500C) represents the temperature deviation from 500C, and multiplying it by the constant ko scales the voltage accordingly. Adding -5V ensures that the voltage is within the range of -5V to +V.

Explanation

The correct answer is U0=-5V+ko(O-500C) because it represents the mapping of temperature to voltage. The negative sign indicates that as the temperature increases, the voltage decreases. The term (O-500C) represents the temperature deviation from 500C, and multiplying it by the constant ko scales the voltage accordingly. Adding -5V ensures that the voltage is within the range of -5V to +V.

112. Povezati realizaciju filtra sa odgovarajućim izrazom za odgovarajucu funkciju i nazivom

Propusnih opsega učestanosti

Propusnih visokih učestanosti

The correct answer is "propusnih visokih učestanosti". This answer suggests that the realization of the filter is connected to the appropriate expression for the corresponding function and the name "propusnih visokih učestanosti", which translates to "high-frequency passbands". This implies that the filter is designed to allow high-frequency signals to pass through while attenuating or blocking low-frequency signals.

Explanation

The correct answer is "propusnih visokih učestanosti". This answer suggests that the realization of the filter is connected to the appropriate expression for the corresponding function and the name "propusnih visokih učestanosti", which translates to "high-frequency passbands". This implies that the filter is designed to allow high-frequency signals to pass through while attenuating or blocking low-frequency signals.

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113. Povezati realizaciju filtra sa odgovarajućim izrazom za prenosnu funkciju i nazivom

Propusnih niskih učestanosti

Propusnih opsega učestanosti

Propusnih visokih učestanosti

The correct answer is "propusnih niskih učestanosti" because the term "propusnih niskih učestanosti" refers to the low-frequency passband, which is the range of frequencies that can pass through a filter without significant attenuation. This is directly related to the transfer function of the filter, as the transfer function describes how the filter affects different frequencies. Therefore, connecting the realization of the filter with the term "propusnih niskih učestanosti" implies that the filter is designed to allow low-frequency signals to pass through with minimal loss.

Explanation

The correct answer is "propusnih niskih učestanosti" because the term "propusnih niskih učestanosti" refers to the low-frequency passband, which is the range of frequencies that can pass through a filter without significant attenuation. This is directly related to the transfer function of the filter, as the transfer function describes how the filter affects different frequencies. Therefore, connecting the realization of the filter with the term "propusnih niskih učestanosti" implies that the filter is designed to allow low-frequency signals to pass through with minimal loss.

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114. Deo mernog lanca koji jednu veličinu pretvara, u informacionom smislu, u drugu veličinu radi merenja naziva se

A device that converts one quantity into another quantity for the purpose of measurement is called a "merni pretvarač" in Serbian.

Explanation

A device that converts one quantity into another quantity for the purpose of measurement is called a "merni pretvarač" in Serbian.

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115. Algebarska razlika niže i više nazivne vrednosti izlaznog signala zove se

Izlazni napon

Merni opseg

Granični opseg

The correct answer is "izlazni napon". This is because "algebarska razlika" refers to the algebraic difference, and "niže i više nazivne vrednosti izlaznog signala" refers to the lower and higher nominal values of the output signal. Therefore, the term "izlazni napon" (output voltage) is the most appropriate term to describe this concept.

Explanation

The correct answer is "izlazni napon". This is because "algebarska razlika" refers to the algebraic difference, and "niže i više nazivne vrednosti izlaznog signala" refers to the lower and higher nominal values of the output signal. Therefore, the term "izlazni napon" (output voltage) is the most appropriate term to describe this concept.

116. Pokazatelj usrednjavnja Kr je definisan kao količnik

Temene vrednosti i efektivnih vrednosti periodične veličine

Efektivne vrednosti i srednje apsolutne vrednosti periodične veličine

Temene vrednosti i srednje apsolutne vrednosti periodične veličine

The correct answer is "Temene vrednosti i srednje apsolutne vrednosti periodične veličine." This is because the indicator of central tendency in statistics is defined as the ratio between the peak values and the mean absolute values of a periodic quantity.

Explanation

The correct answer is "Temene vrednosti i srednje apsolutne vrednosti periodične veličine." This is because the indicator of central tendency in statistics is defined as the ratio between the peak values and the mean absolute values of a periodic quantity.

117. Merni pretvarač je celina koja se ____________________(može ne može) upotrebiti samostalno

The correct answer is "može". This is because the phrase "može ne može" means "can or cannot", indicating that the merni pretvarač can be used independently.

Explanation

The correct answer is "može". This is because the phrase "može ne može" means "can or cannot", indicating that the merni pretvarač can be used independently.

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118. Povezati efektivne vrednosti Uef sa talasnim oblicima:

U_ef=U/√2

U_ef=U/√(3/8)

U_ef=U/2√2

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119. Означите карактеристике волтметра са покретним калемом

Јавља се хистерезис и губици услед вихорних струја.

Да би могао да мери и наизменичне напоне, употребљава се заједно са исправљачима

Користе се за мерење напона мањих учестаности (10 до 100 Hz)

Погодни су за мерења напона чије се учестаности крећу у границама од 15 до 15000 Hz.

The characteristics of a voltmeter with a moving coil are that it can measure alternating voltages when used together with rectifiers, and it is suitable for measuring voltages with frequencies ranging from 15 to 15000 Hz.

Explanation

The characteristics of a voltmeter with a moving coil are that it can measure alternating voltages when used together with rectifiers, and it is suitable for measuring voltages with frequencies ranging from 15 to 15000 Hz.

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120. Povezati srednju vrednost sa odgovarajucim talasnim oblikom

U_av=U*1/2

U_av=0

U_av=U*2/π

Submit

121.

prikazivač

množač

upravljačka jedinica

integrator

Submit

122. Kolika je srednja vrednost signala prikazana na slici?

Option 4

not-available-via-ai

Explanation

not-available-via-ai

123. Which one do you like?

Option 1

Option 2

Option 3

Option 4

not-available-via-ai

Explanation

not-available-via-ai

124. Koji je tip filtra prikazan na slici?

Filtar prvog reda

Filtar propusnih visokih učestanosti tipa Batervort

Filtar drugog reda

Filtar treceg reda

Filtar propusnih niskih učestanosti

Filtar propusnih visokih učestanosti

Filtar propusnih niskih učestanosti tipa Batervort

The correct answer is "filtar treceg reda" and "filtar propusnih niskih učestanosti tipa Batervort". This suggests that the filter shown in the image is a third-order filter and a low-pass Butterworth filter.

Explanation

The correct answer is "filtar treceg reda" and "filtar propusnih niskih učestanosti tipa Batervort". This suggests that the filter shown in the image is a third-order filter and a low-pass Butterworth filter.

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125. Povezati tip signala pomoću kojih se procesni računar povezuje sa procesom sa električnom prirodom navedenih signala

signalizacija

postavne vrednosti

komande

merenja

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126. Производ ефективне вредности струје и напона представља

привидну снагу

реактивну снагу

активну снагу

The correct answer is "привидну снагу". This is because the phrase "производ ефективне вредности струје и напона" translates to "product of the effective values of current and voltage". The product of current and voltage gives the apparent power, which is represented by "привидна снага" in Serbian.

Explanation

The correct answer is "привидну снагу". This is because the phrase "производ ефективне вредности струје и напона" translates to "product of the effective values of current and voltage". The product of current and voltage gives the apparent power, which is represented by "привидна снага" in Serbian.

127. Signal koji se identično reprodukuje u jednakim intervalima nezavisno promenljive je

The given question is in Serbian and it translates to "A signal that is reproduced identically at equal intervals independent of the variable is". The correct answer "periodic" aligns with the question as it describes a signal that repeats itself in a regular pattern over time. This means that the signal exhibits a periodic behavior, where it can be represented by a periodic function or waveform.

Explanation

The given question is in Serbian and it translates to "A signal that is reproduced identically at equal intervals independent of the variable is". The correct answer "periodic" aligns with the question as it describes a signal that repeats itself in a regular pattern over time. This means that the signal exhibits a periodic behavior, where it can be represented by a periodic function or waveform.

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128. Koji je tip filtra prikazan na slici

Filter propusnih visokih učestanosti

Filtar prvog reda

Filtar drugog reda

Filtar propusnih visokih učestanosti tipa Batervort

Filtar propusnih niskih učestanosti tipa Batervort

Filtar propusnih niskih učestanosti

The correct answer is "Filtar drugog reda" and "Filtar propusnih niskih učestanosti". This suggests that the filter shown in the image is a second-order low-pass filter.

Explanation

The correct answer is "Filtar drugog reda" and "Filtar propusnih niskih učestanosti". This suggests that the filter shown in the image is a second-order low-pass filter.

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129. Подесиви еталонски уређаји којима се остварује испитивање ватметара и мерних претварача наизменичних величина зову се___________

The given question asks for the name of the standard devices used to test wattmeters and measuring transformers for alternating quantities. The correct answer is "kalibratori," which is the Serbian word for "calibrators." Calibrators are instruments used to verify the accuracy and precision of other instruments, such as wattmeters and measuring transformers, by comparing their measurements to known standards.

Explanation

The given question asks for the name of the standard devices used to test wattmeters and measuring transformers for alternating quantities. The correct answer is "kalibratori," which is the Serbian word for "calibrators." Calibrators are instruments used to verify the accuracy and precision of other instruments, such as wattmeters and measuring transformers, by comparing their measurements to known standards.

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Merenja 2 Vtest

1. Унутрашња отпорност идеалног амперметра мора да буде једнака нули

2.

What first name or nickname would you like us to use?

2. Periodična struja čija je srednja vrednost jednaka nuli je

3. Obično je najpogodnije da se filtriranje izvrši_________________normalizacije

4. _________ snaga je realna snaga koja se prenosi od izvora el energije potrošaču, odnosno od jednog dela elektroenergetskog sistema drugom

5. Kolika je srednja vrednost signala prikazanog na slici

6. Temena vrednost prostoperiodične veličine zove se

7. U industrijskoj metrologiji najširu primenu imaju

8. _____________senzori zahtevaju dodatni izvor energije

9. __________________senzori energiju za svoj rad uzimaju iz medijuma čije stanje održavaju(mere)

10. Signali koji mogu da budu predstavljeni nekom određenom matematičkom funkcijom vremena zovu se determinističkom

11. Signali koji mogu da budu predstavljeni nekom određenom matematičkom funkcijom vremena zovu se nederminističkom

12. Signali čiji buduće vrednosti(promene) nisu unapred poznate zovu se nedetrministički

13. Veličina koja predstavlja merenu veličinu i sa kojom je funkcionisalo povezana predstavlja

14. Moduo razlike graničnih vrednosti nazivnog opsega naziva se________________

15. Povezati opis funkcije filtra sa odgovarajućom oznakom

16. Merenje, u najopštijem slučaju, obuhvata

17. Propusni opseg filtra je opseg učestanosti u kome

18. На основу дијаграма приказаног на слици, изабрати редни број мерог опсега мерене величине који доводи до промене оштећења.

19. Količnik predstavlja

20. Količnik predstavlja

21. Uobičajeno je da se specijalizovani računari, namenjeni za upravljanje tehnološkim procesima nazivaju________________ računari

22. Struktura kondicionera određena je električnim karakteristikama senzora i praktično_________________od fizičke prirodne veličine koja se meri

23. Nosilac informacije koji mogućava njeno prenošenje kroz prostor i vreme zove se

24. Filtri tipa Batervort imaju maksimalno_______________________amplitudsku karakteristiku

25. Nepropusni opseg je opseg učestanosti u kome

26. Signali prema intezitetu mogu da budu

27. Niz elemenata mernog sistema koji čine pojedinačnu putanju signala od senzora do izlaznog elementa zove se ______________________

28. ____________ senzori energiju za svoj rad uzimaju iz medijuma čije stanje održavaju(mere)

29. Povezati definiciju sa odgovarajućim nazivom

30. Мерење електричне___________се превасходно врши са циљем обрачуна трошкова за преузету енергију.

31. На основу дијаграма приказаног на слици, изабрати редни број мерог опсега мерене величине који доводи до промене нуле.

32. Izrazom određuje se

33. Deo mernog lanca koji ostvaruje spregu sa senzorom naziva se

34. Kod pretvarača sa izlomljenom karakteristikom prikazanom na slici postiže se bolja rezolucija u podopsegu 0 do Xg

35. Promena vrednosti analogne veličine

36. ______________ је елемент са два приступа типа улаз-излаз, намењен да преноси спектралне компоненте улазног сигнала у складу са одређеним законом.

37. Povezati talasni oblik sa odgovarajucom funkcijom

38. Мерење електричне енергије остварује се___________________измерене електричне снаге током одређеног временског интервала.

39. На основу дијаграма приказаног на слици, изабрати редни број мерог опсега мерене величине који доводи до промене осетљивости.

40. Кроз идеалан волтметар тече струја

41. Efektivna vrednost prostoperiodičnog napona u(t)=U*sin(w*t+p)

42. Kod pretvarača sa izlomljenom karakteristikom prikazanom na slici postiže se bolja rezolucija u podopsegu Xg do Xmax

43. Pri merenju neelektričnih veličina, informacija dobijena pomoću senzora

44. Količnik predstavlja

45. Efektivna vrednost složenog periodičnog signala

46. Periodična struja čija je srednja vrednost različita od nule je

47. Promena vrednosti digitalne veličine

48. На слици је приказан блок дијаграм

49. U trofaznoj električnoj mreži naponi su fazno pomereni za ugao

50. Interval vremena od trenutka kada se pobuda naglo promeni do trenutka kada odziv dostigne i ostane u određenim granicama oko svoje konačne stabilne vrednosti naziva se___________________

51. Veličina koja predstavlja merenu veličinu i sa kojom je funkcionalno povezana zove se

52. Raspodela veličine u funkciji učestalosti ili talasne dužine naziva se

53. Senzori u kojima se ostvaruje pretvaranje merene neelektrične veličine u električnu koja predstavlja jedan od parametara električne mreže: otpornost, induktivnost ili kapacitivnost su:

54. Pri merenjima u industrijskim uslovima (procesna merenja) najveći broj senzora, pomoću kojih se merena neelektrična veličina transformiše u električni signal, predstavlja

55. Primenom oznaka na vremenskom dijagramu napisati čemu je jednaka vrednost konstante k pretvarača sa linearnom karakteristikom

56. Како се зове метод мерења наизменичних величина приказан на слици?

57. Кроз идеалан волтметар не тече струја

58. Povezati prikazanu prenosnu funkciju sa odgovarajućim tipom filtra

59. Уколико филтар има линеарну фазну карактеристику, фазна карактеристика

60. Ватметар се користи за мерење

61. Funkcija prikazana na slici

62. Svojstvo merila kojim svoja metrolo[ka svojstva održavanepromenljivim tokom vremena naziva se____________

63. Koji je tip signala prikazan na slici

64. Izrazom određuje se

65. Sposobnost merila da ne menja merenu veličinu zove se

66. Povezati realizaciju filtra sa odgovarajućim izrazom za prenosnu funkciju i nazivom

67. Merni i upravljački uređaji različitog stepena složenosti, posredstvom kojih se ostvaruje sprega sa procesom, predstavljau_______________jedinice specijalnog računara

68. Spora promena metrološkog svojstva merila naziva se____________________

69. Kolika je distorzija drugog harmonika (%D2=?) ako je napon

70. Izrazom određuje se

71. Kolika je distorzija trećeg harmonika (%D3=7) ako je napon

72. Sa ciljem uspešnijeg prenosa, obrade ili zapisivanja, neelektrične merene veličine se preslikavaju na _________________

73.

74.

75. Способност сензора да у референтним радним условима даје показивања блиска стварној вредности мерене величинe представља

76. Ako je struja na izlazu mernog pretvarača temperature na osnovu karakteristike prikazane na slici odrediti vrednost konstante prenosa k pretvarača

77. Ako je ulaz mernog pretvarača temperature u opsegu 500C do 700C,a izlaz naponski signal u opsegu -5V do +5V, kolika je vrednost konstante prenosa pretvarača?

41. Efektivna vrednost prostoperiodičnog napona u(t)=Usin(wt+p)