Assemble And Disassemble

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Electronics Quizzes & Trivia

Questions and Answers
  • 1. 

    Is the electronic component that removes the ripples of the power supply output?

    • A.

      Transistor

    • B.

      Resistor

    • C.

      Diode

    • D.

      Capacitor

    Correct Answer
    D. Capacitor
    Explanation
    A capacitor is an electronic component that is commonly used to filter out or remove ripples in the power supply output. It acts as a storage device for electrical energy and can release this energy when needed to smooth out fluctuations in voltage. By storing and releasing energy, a capacitor helps to stabilize the power supply output and ensure a more consistent and reliable flow of electricity.

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  • 2. 

    Is the essential components of a circuit are?

    • A.

      Source conducting path, load

    • B.

      Inductive reactance

    • C.

      Hysteresis loss

    • D.

      Forward bias

    Correct Answer
    A. Source conducting path, load
    Explanation
    The essential components of a circuit are the source conducting path and the load. The source conducting path refers to the pathway through which the electric current flows, typically provided by a power source such as a battery or generator. The load is the part of the circuit that consumes the electrical energy, such as a light bulb or motor. These two components are necessary for the circuit to function properly, as the source provides the energy and the load uses it. The other options, inductive reactance, hysteresis loss, and forward bias, are not essential components of a circuit.

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  • 3. 

    Is the limited core is used in transformers to minimize ?

    • A.

      Source conducting path, load

    • B.

      Polarity

    • C.

      Hysteresis loss

    • D.

      Number of effective junctions

    Correct Answer
    C. Hysteresis loss
    Explanation
    The limited core in transformers is used to minimize hysteresis loss. Hysteresis loss occurs due to the continuous reversal of magnetization in the core material, resulting in energy loss. By using a limited core, the amount of core material subject to magnetization reversal is reduced, thereby minimizing hysteresis loss.

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  • 4. 

    Is the filter capacitor used in a power supply ?

    • A.

      Forward bias

    • B.

      Electronic type

    • C.

      Series where current is to be determined

    • D.

      Transistor

    Correct Answer
    B. Electronic type
    Explanation
    The given answer "electronic type" suggests that the filter capacitor used in a power supply is of the electronic type. This implies that the capacitor is specifically designed for use in electronic circuits and is suitable for filtering and smoothing the output voltage of the power supply. It is important to use an electronic type capacitor in a power supply to ensure proper functioning and reliable performance of the circuit.

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  • 5. 

    Is the opposition to the flow of a.c offered  by the coil is called ?

    • A.

      Forward bias

    • B.

      Inductive reactance

    • C.

      Emitter and collector

    • D.

      Polarity

    Correct Answer
    B. Inductive reactance
    Explanation
    The opposition to the flow of alternating current (a.c.) offered by a coil is called inductive reactance. Inductive reactance is a property of inductors, which are passive electronic components that store energy in a magnetic field. When a.c. flows through an inductor, it creates a changing magnetic field, which induces a voltage that opposes the current flow. This opposition is known as inductive reactance and is measured in ohms. It is caused by the self-inductance of the coil and is dependent on the frequency of the alternating current.

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  • 6. 

    Is the diode, that anode is connected to the positive side of the source while the cathode is

    • A.

      Forward bias

    • B.

      Meter sensitivity

    • C.

      Rosin core soldier

    • D.

      Polarity

    Correct Answer
    A. Forward bias
    Explanation
    The correct answer is "forward bias". This is because in a forward biased diode, the anode is connected to the positive side of the source while the cathode is connected to the negative side. This configuration allows current to flow through the diode, as the positive voltage at the anode repels the majority charge carriers towards the junction, creating a conductive path.

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  • 7. 

    Is the most important consideration when connecting an electrolytic capacitor in a circuit ?

    • A.

      Series where the current is to be determined

    • B.

      Emitter and collector

    • C.

      Polarity

    • D.

      Meter sensitivity

    Correct Answer
    C. Polarity
    Explanation
    The most important consideration when connecting an electrolytic capacitor in a circuit is its polarity. Electrolytic capacitors are polarized components, meaning they have a positive and negative terminal. If they are connected with the wrong polarity, they can become damaged or even explode. Therefore, it is crucial to correctly identify the positive and negative terminals of the capacitor and connect them accordingly in the circuit.

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  • 8. 

    Is the devices the most important thing to know about the vom?

    • A.

      Meter sensitivity

    • B.

      Tester

    • C.

      Polarity

    • D.

      Number of effective junctions

    Correct Answer
    A. Meter sensitivity
    Explanation
    The question is asking about the most important thing to know about the vom (volt-ohm-milliammeter). Out of the given options, meter sensitivity is the most crucial aspect to consider when using a vom. Meter sensitivity refers to the ability of the meter to detect and measure small changes in voltage, resistance, or current. A higher sensitivity means that the meter can accurately measure even the smallest changes, making it an essential factor in obtaining accurate readings.

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  • 9. 

    Is the highest resistance in a transistor when cheeked or tested with a vom is between

    • A.

      Base and collector

    • B.

      Base and emitter

    • C.

      Emitter and collector

    • D.

      Shorted or open transistor

    Correct Answer
    C. Emitter and collector
    Explanation
    When a transistor is checked or tested with a vom (volt-ohm meter), the highest resistance is observed between the emitter and collector. This is because the emitter and collector are the two main terminals of a transistor, and there is no direct current flow between them in normal operation. The base terminal controls the flow of current between the emitter and collector, so when the transistor is not conducting, the resistance between the emitter and collector is at its highest.

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  • 10. 

    Is not a basic component of a typical low voltage power supply?

    • A.

      Series where the current is to determined

    • B.

      Collector to emitter

    • C.

      Base to emitter

    • D.

      Transistor

    Correct Answer
    D. Transistor
    Explanation
    A transistor is not a basic component of a typical low voltage power supply. In a low voltage power supply, basic components typically include a transformer, rectifier, filter capacitor, and voltage regulator. A transistor is a semiconductor device used for amplification or switching purposes, and it is not directly involved in the basic functioning of a power supply.

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  • 11. 

    When measuring current in a circuit the vom connected ?

    • A.

      Polarity

    • B.

      Series where the current is to determined

    • C.

      Number of effective junction

    • D.

      V=h deflection yoke

    Correct Answer
    B. Series where the current is to determined
    Explanation
    When measuring current in a circuit, the voltmeter (vom) should be connected in series with the circuit where the current is to be determined. This is because in a series circuit, the same current flows through all the components, so by connecting the voltmeter in series, it can measure the exact current passing through that specific point in the circuit.

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  • 12. 

    Is the most commonly used protective device ?

    • A.

      Resistor

    • B.

      Fuse

    • C.

      Capacitor

    • D.

      Transistor

    Correct Answer
    B. Fuse
    Explanation
    A fuse is the most commonly used protective device because it is designed to protect electrical circuits from overcurrent or short circuits. When the current exceeds the rated value, the fuse melts and breaks the circuit, preventing damage to the circuit or appliances. It acts as a safety measure by interrupting the flow of current in case of any faults or abnormalities, thereby protecting the electrical system from potential hazards.

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  • 13. 

    In a code 2SA 180 A the number 2 stands

    • A.

      Infinite resistance

    • B.

      Shunt bypass capacitor

    • C.

      Series where the current is to be determined

    • D.

      Number of effective junctions

    Correct Answer
    D. Number of effective junctions
    Explanation
    The number 2 in the given code refers to the number of effective junctions. In electronic circuits, junctions are points where different components are connected together. The number of junctions affects the behavior of the circuit and can determine how current flows through it. Therefore, the number 2 in the code indicates that there are two effective junctions in the circuit.

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  • 14. 

    Is the AC 187 is a code use?

    • A.

      European standard

    • B.

      Infinite resistance

    • C.

      Cathode burn

    • D.

      Convergence yoke

    Correct Answer
    A. European standard
  • 15. 

    Is the kind of electronic component is used in treble out circuit to reduced the output at high frequencies ?

    • A.

      Cathode burn

    • B.

      Infinite resistance

    • C.

      Capacitor

    • D.

      Shunt bypass capacitor

    Correct Answer
    D. Shunt bypass capacitor
    Explanation
    A shunt bypass capacitor is commonly used in treble output circuits to reduce the output at high frequencies. It acts as a low impedance path for high-frequency signals, bypassing them to the ground and preventing them from reaching the output. This helps in attenuating the treble frequencies and achieving a desired frequency response in the circuit.

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  • 16. 

    To improve the sound of a small capacitor what is the value of capacitor should be connected across the primary winding of the output transformer in treble circuit designs?

    • A.

      .01 uf

    • B.

      .001 uf

    • C.

      .10 uf

    • D.

      .010 uf

    Correct Answer
    A. .01 uf
    Explanation
    To improve the sound of a small capacitor, a capacitor with a value of .01 uf should be connected across the primary winding of the output transformer in treble circuit designs.

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  • 17. 

    In the 0.001 microfarad capacitor is placed in parallel with a 100 pf capacitor the total capacitance ?

    • A.

      100000 pf

    • B.

      10000 pf

    • C.

      1000 pf

    • D.

      1100 pf

    Correct Answer
    D. 1100 pf
    Explanation
    When capacitors are placed in parallel, the total capacitance is equal to the sum of the individual capacitances. In this case, the 0.001 microfarad capacitor is equivalent to 1000 pf (since 1 microfarad is equal to 1000 pf), and when it is placed in parallel with the 100 pf capacitor, the total capacitance is the sum of these two values, which is 1100 pf.

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  • 18. 

    Should not be included as a sign of short circuit ?

    • A.

      Definite resistance

    • B.

      Infinite reactance

    • C.

      Infinite resistance

    • D.

      Definite reactance

    Correct Answer
    C. Infinite resistance
    Explanation
    The correct answer is infinite resistance. This is because a short circuit occurs when there is a direct connection between the positive and negative terminals of a power source, bypassing the load. In this case, the resistance is so high that it approaches infinity, meaning that no current can flow through the circuit. Therefore, infinite resistance should not be included as a sign of a short circuit.

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  • 19. 

    Is not a sign of short circuit ?

    • A.

      Definite resistance

    • B.

      Infinite resistance

    • C.

      Cathode burn

    • D.

      V=h deflection yoke

    Correct Answer
    B. Infinite resistance
    Explanation
    Infinite resistance is not a sign of a short circuit because a short circuit typically occurs when there is little to no resistance in a circuit, causing a large current to flow. In contrast, infinite resistance indicates an open circuit, where there is a break in the circuit and no current can flow. Therefore, infinite resistance is not a sign of a short circuit.

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  • 20. 

    Damage to the crt and can not be repaired except replacing crt?

    • A.

      Convergence yoke

    • B.

      Resetting the yoke

    • C.

      Shunt bypass capacitor

    • D.

      Cathode burn

    Correct Answer
    D. Cathode burn
    Explanation
    Cathode burn refers to damage to the cathode of a CRT (cathode ray tube) display. This damage cannot be repaired except by replacing the entire CRT. This explanation suggests that the other options (convergence yoke, resetting the yoke, shunt bypass capacitor) are not the correct answer because they do not pertain to the specific issue of cathode burn.

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  • 21. 

    Is the last step  in the final adjustment for color purity?

    • A.

      Resetting the yoke

    • B.

      Shunt bypass capacitor

    • C.

      Infinite resistance

    • D.

      Cathode burn

    Correct Answer
    A. Resetting the yoke
    Explanation
    The correct answer is resetting the yoke. Resetting the yoke is the last step in the final adjustment for color purity. The yoke is a coil of wire that controls the movement of the electron beam in a CRT (cathode ray tube) television. Resetting the yoke involves adjusting its position to ensure that the electron beam hits the correct phosphor dots on the screen, resulting in accurate color reproduction. This adjustment is crucial for achieving optimal color purity in the display.

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  • 22. 

    This magnetic yoke has individual adjustments for each color to make the beams converge?

    • A.

      Resetting the yoke

    • B.

      Convergence yoke

    • C.

      Printed circuit

    • D.

      V=h deflection yoke

    Correct Answer
    B. Convergence yoke
    Explanation
    The convergence yoke is responsible for adjusting the beams of different colors to converge on the screen. It has individual adjustments for each color, allowing precise alignment and convergence of the beams. This ensures that the colors appear properly aligned and there is no color fringing or blurring on the screen. The convergence yoke is an essential component in CRT displays and helps in achieving accurate color reproduction.

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  • 23. 

    That method is applied in order for an anode voltage will not exceed its recommended voltage?

    • A.

      V=h deflection yoke

    • B.

      Infinite resistance

    • C.

      The high voltage is cut off resulting in increase brightness

    • D.

      Cathode burn

    Correct Answer
    C. The high voltage is cut off resulting in increase brightness
    Explanation
    When the high voltage is cut off, it means that the voltage supplied to the anode is reduced or stopped completely. This can result in an increase in brightness because the anode voltage is responsible for accelerating electrons towards the screen, which in turn creates the image. When the voltage is cut off, the electrons are not accelerated as strongly, leading to a brighter image. This method is applied to prevent the anode voltage from exceeding its recommended level, which could potentially cause damage to the cathode or other components.

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  • 24. 

    The setting the beam landing adjustment correctly electron beams are aimed by moving the ?

    • A.

      Cathode burn

    • B.

      Resetting yoke

    • C.

      V=h deflection yoke

    • D.

      Rosin-core soldier

    Correct Answer
    C. V=h deflection yoke
    Explanation
    The correct answer is v=h deflection yoke. The v=h deflection yoke is responsible for adjusting the electron beams in a cathode ray tube (CRT) display. By properly setting the beam landing adjustment, the electron beams can be accurately aimed and positioned on the screen. This ensures that the image displayed on the CRT is clear and properly aligned. The other options mentioned, such as cathode burn, resetting yoke, and rosin-core soldier, do not relate to the adjustment of electron beams in a CRT display.

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  • 25. 

    Is that devices are not advisable electronics assembly and repair work?

    • A.

      Side cutter pliers

    • B.

      Rosin core solder

    • C.

      Cathode burn

    • D.

      V=h deflection yoke

    Correct Answer
    A. Side cutter pliers
    Explanation
    Side cutter pliers are not advisable for electronics assembly and repair work because they can cause damage to delicate components. These pliers have a cutting edge on one side, which can easily cut through wires and leads, but can also accidentally cut other nearby components or cause short circuits. Therefore, it is recommended to use specialized tools like wire strippers or precision cutters that are designed specifically for electronics work to ensure accuracy and avoid any potential damage.

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  • 26. 

    Is the commonly used soldering material for electronics assembly?

    • A.

      Balunco

    • B.

      Antenna system

    • C.

      RF amplifier transistor

    • D.

      Rosin core solder

    Correct Answer
    D. Rosin core solder
    Explanation
    Rosin core solder is the commonly used soldering material for electronics assembly. It contains a flux core made of rosin, which helps to remove oxidation and impurities from the solder joint, ensuring a strong and reliable connection. The flux also promotes better wetting and flow of the solder, making it easier to work with. This type of solder is widely used in electronics because it provides good electrical conductivity and is suitable for a variety of applications, including circuit board assembly and component soldering.

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  • 27. 

    Is the soldering joints that are dull and crunchy likely due to?

    • A.

      Soldering lead

    • B.

      Soldering tip

    • C.

      Soldering iron

    • D.

      Soldering gun

    Correct Answer
    B. Soldering tip
    Explanation
    The dull and crunchy soldering joints are likely due to a faulty soldering tip. The tip is the part of the soldering iron that comes into direct contact with the solder and the joint being soldered. If the tip is worn out, dirty, or not properly heated, it can result in poor soldering joints. A dull and crunchy joint indicates that the solder did not properly flow and adhere to the surface, which can be caused by a malfunctioning or inadequate soldering tip.

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  • 28. 

    The disk-drive mechanism in a cd player uses a motor called ?

    • A.

      Printed circuit

    • B.

      Cfc free soldering free

    • C.

      Spindle motor

    • D.

      Coaxial cable

    Correct Answer
    C. Spindle motor
    Explanation
    The correct answer is spindle motor. The disk-drive mechanism in a CD player uses a spindle motor to rotate the CD at a high speed. This motor is responsible for spinning the CD and allowing the laser to read the data stored on it. Without the spindle motor, the CD player would not be able to function properly.

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  • 29. 

    Is the interconnection of ics and other electronic components through pathways of conductive materials that is etched onto a rigid surface?

    • A.

      Printed circuit or wiring

    • B.

      Cable television system

    • C.

      Balunco

    • D.

      RF amplifier transistor

    Correct Answer
    A. Printed circuit or wiring
    Explanation
    The correct answer is printed circuit or wiring. This is because a printed circuit or wiring refers to the interconnection of ICs and other electronic components through pathways of conductive materials that are etched onto a rigid surface. This allows for the efficient flow of electrical signals between components and helps in the proper functioning of electronic devices.

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  • 30. 

    Is the type of soldering used in compliance with the direction of reduction of hazardous substances?

    • A.

      Television system

    • B.

      Printed circuit

    • C.

      Half wave

    • D.

      Cfc free soldering

    Correct Answer
    D. Cfc free soldering
    Explanation
    CFC free soldering is the type of soldering that is used in compliance with the direction of reduction of hazardous substances. This means that CFC free soldering does not contain any Chlorofluorocarbons, which are harmful to the environment and contribute to ozone depletion. Using CFC free soldering helps to reduce the release of these hazardous substances into the environment, making it a more environmentally friendly option.

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  • 31. 

    Head end -trunk line -trunk amplifier -distribution- subscriber

    Correct Answer
    cable television system
    Explanation
    The given answer "cable television system" is the correct answer because the terms "head end," "trunk line," "trunk amplifier," "distribution," and "subscriber" are all components or stages of a cable television system. The head end is where the television signals are received and processed, the trunk line is the main cable that carries the signals, the trunk amplifier boosts the signal strength, distribution refers to the branching of the signal to different areas, and subscribers are the end users who receive the television signals through their cable connections. Therefore, the correct answer is a cable television system.

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  • 32. 

    Is the transmission line has the best reception?

    • A.

      75 ohm coaxial cable

    • B.

      Silicon grease

    • C.

      Antenna system

    • D.

      RF amplifier

    Correct Answer
    A. 75 ohm coaxial cable
    Explanation
    The 75 ohm coaxial cable is the correct answer because it is specifically designed for transmitting and receiving high-frequency signals, such as those used in television and radio broadcasting. This type of cable has low signal loss and impedance matching properties, which allows for efficient signal transmission and reception. The other options, silicon grease, antenna system, and RF amplifier, may play a role in the overall reception quality, but the 75 ohm coaxial cable is essential for optimal signal reception.

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  • 33. 

    Half wave double circuit?

    Correct Answer
    bunos
  • 34. 

    In order to assure good thermal contact between A power transistor and its heat sink?

    • A.

      Wire

    • B.

      Silicon paste

    • C.

      Silicon grease

    • D.

      Soldering lead

    Correct Answer
    C. Silicon grease
    Explanation
    Silicon grease is the best option for assuring good thermal contact between a power transistor and its heat sink. This is because silicon grease has high thermal conductivity and can fill in any gaps or imperfections between the transistor and the heat sink, allowing for efficient heat transfer. It also provides electrical insulation, preventing any short circuits. Wire, silicon paste, and soldering lead are not suitable for this purpose as they do not have the same thermal conductivity and may not provide a secure and efficient thermal contact.

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  • 35. 

    Is the channel reception are snowy

    • A.

      Half wave double circuit

    • B.

      RF amplifier transistor / Antenna system / Balunco

    • C.

      Halfwave circuit

    • D.

      Cable television

    Correct Answer
    B. RF amplifier transistor / Antenna system / Balunco
    Explanation
    The correct answer is RF amplifier transistor / Antenna system / Balunco. This answer suggests that the channel reception may be snowy due to issues with the RF amplifier transistor, antenna system, or balunco. These components are crucial for receiving and amplifying the radio frequency signals, and if any of them are faulty or not properly connected, it can result in poor reception quality, leading to a snowy picture on the television.

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  • 36. 

    Diagram

    Correct Answer
    bunos
  • 37. 

    In the combination of equipment can be used for aligning the if and rf circuits of the television receive visually ?

    • A.

      Signal generator

    • B.

      Regulated d.c output

    • C.

      Sweep marker generator and oscilloscope

    • D.

      Wet cell

    Correct Answer
    C. Sweep marker generator and oscilloscope
    Explanation
    A sweep marker generator and oscilloscope can be used to align the if and rf circuits of a television receiver visually. The sweep marker generator generates a sweep signal that is fed into the if and rf circuits, while the oscilloscope displays the output waveform. By adjusting the circuits until the waveform on the oscilloscope is aligned and stable, the if and rf circuits can be properly calibrated for optimal performance.

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  • 38. 

    Diagram

    Correct Answer
    bunos
  • 39. 

    Is the carbon resistor is coded with with brown green yellow and gold stripes from left to right its value is equal?

    • A.

      15,00+-10 percent

    • B.

      150,00+-10 percent

    • C.

      15,00+-5 percent

    • D.

      150,00+-5 percent

    Correct Answer
    D. 150,00+-5 percent
    Explanation
    The given resistor is coded with brown, green, yellow, and gold stripes from left to right. The first digit brown represents 1, the second digit green represents 5, the third digit yellow represents 4, and the gold stripe represents a tolerance of 5%. Therefore, the value of the resistor is 154 with a tolerance of 5%. The answer option that matches this value and tolerance is 150,00+-5 percent.

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  • 40. 

    In testing a low power transistor with an ohmmeter the range of the scale should be set

    • A.

      R x 10

    • B.

      R x 100

    • C.

      R x 1

    • D.

      R x 1000

    Correct Answer
    B. R x 100
    Explanation
    The range of the scale should be set to R x 100 when testing a low power transistor with an ohmmeter. This is because a low power transistor typically has a low resistance value, and setting the scale to R x 100 allows for more accurate measurement within the expected range of resistance values for the transistor. Setting the scale too low (R x 1) may result in the resistance value exceeding the range of the meter, while setting it too high (R x 1000) may not provide enough precision for accurate measurement.

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  • 41. 

    Is the following statement is the proper procedure in measuring an unknown AC voltage using the vom as an AC voltmeter ? 

    • A.

      Set the ange switch an the highest AC range and the connect the leads to the power source

    • B.

      Sweep marker generator

    • C.

      Oscilloscope

    • D.

      Impedance of an audio amplifier

    Correct Answer
    A. Set the ange switch an the highest AC range and the connect the leads to the power source
    Explanation
    The proper procedure in measuring an unknown AC voltage using the VOM as an AC voltmeter is to set the range switch on the highest AC range and then connect the leads to the power source.

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  • 42. 

    Which of the following circuit diagrams shows the proper connection of an AC voltmeter when measuring the voltage output of the generator?

    Correct Answer
    switch connected v and resistor in parallel r and v connected to fuse and connected to switch
    Explanation
    The correct answer is the circuit diagram with the switch connected to the voltmeter (V), the resistor (R) connected in parallel to the voltmeter, and the voltmeter connected to the fuse, which is then connected back to the switch. This configuration allows the AC voltmeter to accurately measure the voltage output of the generator by providing a proper path for the current to flow through the voltmeter and the resistor.

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  • 43. 

    In the sime conductor rectifier should used

    • A.

      The leads to the power source

    • B.

      Signal generator

    • C.

      A half wave rectifier circuit /full wave rectifier circuit /bridge wave bridge type rectifier

    • D.

      Numbers of effective junction

    Correct Answer
    C. A half wave rectifier circuit /full wave rectifier circuit /bridge wave bridge type rectifier
    Explanation
    The correct answer is A half wave rectifier circuit /full wave rectifier circuit /bridge wave bridge type rectifier. In a semiconductor rectifier, any of these three types of rectifier circuits can be used depending on the specific requirements of the application. The choice of rectifier circuit is determined by factors such as the desired output voltage and current, efficiency, cost, and the type of load being driven.

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  • 44. 

    Which of the following connection of dry cells, rated at 1.5 volts each will supply a total of 9 volts to receive ?

    Correct Answer
    bunos
  • 45. 

    Diagram

    Correct Answer
    bunos
  • 46. 

    In a super hetero dyne the function of rectifier diode is ?

    • A.

      Amplify the audio signal

    • B.

      Full wave rectifier

    • C.

      Bridge type

    • D.

      Half wave rectifier

    Correct Answer
    A. Amplify the audio signal
    Explanation
    The function of the rectifier diode in a super hetero dyne is to amplify the audio signal. The rectifier diode is responsible for converting the alternating current (AC) signal into a direct current (DC) signal, which is then amplified to produce the audio signal. This allows for the amplification and transmission of the audio signal in the super hetero dyne system.

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  • 47. 

    Is an instrument used to measure peak and peak voltage and to show the shape of a voltage ?

    • A.

      Am receiver

    • B.

      Oscilloscope

    • C.

      Signal generator

    • D.

      Multitester

    Correct Answer
    B. Oscilloscope
    Explanation
    An oscilloscope is an instrument used to measure peak and peak voltage and to show the shape of a voltage. It is commonly used in electronics and electrical engineering to visualize electrical waveforms. With its graphical display, it allows users to analyze and troubleshoot circuits by observing the amplitude, frequency, and time characteristics of electrical signals.

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  • 48. 

    Diagram

    Correct Answer
    bunos
  • 49. 

    An instrument used to provide signal input for testing and aligning purposes is

    • A.

      Signal generator

    • B.

      Oscilloscope

    • C.

      Tester

    • D.

      Ball chart

    Correct Answer
    A. Signal generator
    Explanation
    A signal generator is an instrument used to provide signal input for testing and aligning purposes. It generates electrical signals of various types and frequencies, which can be used to test and calibrate electronic devices, circuits, and systems. It is commonly used in fields such as telecommunications, electronics, and research laboratories. An oscilloscope, on the other hand, is a device used to visualize and analyze electrical waveforms. While a tester is a general term that can refer to various instruments used for testing purposes, and a ball chart is not a commonly known instrument in this context.

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  • 50. 

    Is the device that can be instaled or connected to the radio receiver to give the needed power or replace the dry cell

    • A.

      Battery

    • B.

      Dry cell

    • C.

      Power supply

    • D.

      None of the above

    Correct Answer
    B. Dry cell
    Explanation
    A dry cell is a device that can be installed or connected to a radio receiver to provide the necessary power. It is a type of battery that uses a paste electrolyte instead of a liquid, making it more convenient and portable.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 30, 2013
    Quiz Created by
    AnthonCar
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