Net-II Online Mock Test 2020 (Group: Computer Science)
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Is equal to
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Hey Member, Assalam O Alikum!You are about to take the "NET-II Online Mock Test 2020". We hope you are well prepared to attempt this mock test. Before starting this mock test, we want to get you aware of the paramount instructions. Please read the instructions carefully to avoid any issue.
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7) Mock Test consists of five major subject portions with this sequence Mathematics (Question 1 to
Quiz Preview
- 2.
How many term of the series :
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7
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9
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8
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6
Correct Answer
A. 8 -
- 3.
Which of the following is correct Spelling?
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Vavecious
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Vevacious
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Vivacious
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Vuvacious
Correct Answer
A. VivaciousExplanation
The correct spelling is "Vivacious." This word means lively, animated, or full of energy. It is spelled with two "v's" and an "i" after the first "v."Rate this question:
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- 4.
Two lines are
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Parallel to each other
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Intersecting to each other
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Perpendicular to each other
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Both Parallel and perpendicular to each other
Correct Answer
A. Perpendicular to each otherExplanation
The correct answer is "Perpendicular to each other". Two lines that are perpendicular to each other intersect at a right angle, forming a 90-degree angle. This means that the lines are neither parallel nor intersecting, but rather they cross each other at a right angle.Rate this question:
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- 5.
What is removed when a relation is converted from 2NF to 3NF?
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Partial dependency
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Functional dependency
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Transitive dependency
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Parallel dependency
Correct Answer
A. Transitive dependencyExplanation
When a relation is converted from 2NF to 3NF, the transitive dependency is removed. Transitive dependency occurs when a non-key attribute depends on another non-key attribute, which is dependent on the primary key. In 3NF, all non-key attributes should be dependent only on the primary key, and not on other non-key attributes. Therefore, to achieve 3NF, any transitive dependencies need to be eliminated.Rate this question:
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- 6.
In Einstein's theory , the deflection of light is as great as it according to Newton's theory
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Quadrupled
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Thrice
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Twice
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Not accurate
Correct Answer
A. TwiceExplanation
According to Einstein's theory, the deflection of light is twice as great as it is according to Newton's theory.Rate this question:
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- 7.
A galvanometer can be used as a voltmeter by connecting a
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High resistance in series
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Low resistance in series
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High resistance in parallel
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Low resistance in parallel
Correct Answer
A. High resistance in seriesExplanation
A galvanometer is a device used to measure small electric currents. In order to use it as a voltmeter, it needs to be connected in series with a high resistance. This is because a voltmeter is used to measure voltage, which is the potential difference across a circuit. By connecting a high resistance in series with the galvanometer, the current passing through it will be reduced, allowing it to measure the voltage accurately without affecting the circuit.Rate this question:
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- 8.
BIT stands for _________.
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Binary integer
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Binary digit
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Binary interval
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None of these
Correct Answer
A. Binary digitExplanation
The correct answer is "Binary digit" because the acronym BIT stands for Binary digit. In computing and digital systems, a bit is the basic unit of information and can have two possible values, 0 or 1, representing binary digits. Therefore, BIT is commonly used to refer to a single binary digit.Rate this question:
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- 9.
The meaning of the idiomatic phrase, "Dance with the Death" is:
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Doing something beyond one's capability
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Doing something that is very risky
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To deceive someone
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To kill someone
Correct Answer
A. Doing something that is very riskyExplanation
The phrase "Dance with the Death" is an idiomatic expression that means engaging in an activity or taking a risk that is extremely dangerous or risky. It implies participating in something that could potentially lead to harm or even death.Rate this question:
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- 10.
The sides of a are , then largest angle is:
Correct Answer
A. -
- 11.
Which of the following is renewable energy source?
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Natural gas
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Coal
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Uranium
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Biomass
Correct Answer
A. BiomassExplanation
Biomass is considered a renewable energy source because it is derived from organic matter such as plants, agricultural waste, and wood. These materials can be replenished over time through natural processes like photosynthesis, making biomass a sustainable energy option. In contrast, natural gas, coal, and uranium are non-renewable sources as they are finite and take millions of years to form.Rate this question:
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- 12.
Which symbol is used to separate DNS and user name in an email address?
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“$”
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“@”
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“.com”
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“.”
Correct Answer
A. “@”Explanation
The symbol "@" is used to separate the DNS (Domain Name System) and user name in an email address. The DNS is the part of the email address that identifies the email server or provider, while the user name is the unique identifier for the specific email account within that server or provider. The "@" symbol is commonly used in email addresses to indicate this separation.Rate this question:
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- 13.
Intelligence Quotient If in a certain language FASHION is coded as FOIHSAN, how is PROBLEM coded in that code?
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PELBROM
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PRBOELM
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PELBORM
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RPBOELM
Correct Answer
A. PELBORMExplanation
In the given language, the letters in the word FASHION are rearranged in reverse order. Therefore, to code the word PROBLEM, we need to rearrange the letters in reverse order as well. The correct code for PROBLEM would be PELBORM.Rate this question:
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- 14.
The solution set for the equation is:
Correct Answer
A. -
- 15.
Android in relation to a mobile phone is:
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An operating system
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A robot
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A virus
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None of above
Correct Answer
A. An operating systemExplanation
Android is an operating system that is specifically designed for mobile devices such as smartphones and tablets. It provides a platform for running applications and managing the device's hardware and software resources. Unlike a robot or a virus, Android is not a physical entity or a malicious program. It is a software system that allows users to interact with their mobile phones and perform various tasks. Therefore, the correct answer is that Android is an operating system.Rate this question:
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- 16.
If CIGARETTE is coded as GICERAETT, then DIRECTION will be coded as
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NOIETCRID
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RIDTCENOI
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IRDCTIONE
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NORTECDII
Correct Answer
A. RIDTCENOIExplanation
The given word "CIGARETTE" is coded by rearranging the letters in odd positions and then followed by rearranging the letters in even positions. Applying the same logic to the word "DIRECTION", we rearrange the letters in odd positions to get "RIDTCENOI". Therefore, the correct answer is "RIDTCENOI".Rate this question:
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- 17.
If a force is acting on moving body with constant velocity then power delivered to body at any instant is:
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10 W
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7 W
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0 W
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Force and Velocity has no such relation to yield Power
Correct Answer
A. 7 WExplanation
If a force is acting on a moving body with constant velocity, then the power delivered to the body at any instant is 7 W. This is because power is calculated by multiplying the force applied to an object by its velocity. Since the force is acting on the body and the body is moving with a constant velocity, there is a non-zero power being delivered to the body, which is 7 W.Rate this question:
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- 18.
If DC motor is overloaded as a result it allows to draw
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Less current but increases the back emf
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Less current and decreases the back emf
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High current but decreases the back emf
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High current and increases the back emf
Correct Answer
A. High current but decreases the back emfExplanation
When a DC motor is overloaded, it means that the load on the motor is greater than its rated capacity. In this situation, the motor will draw a high current in an attempt to meet the increased demand. However, as the motor tries to compensate for the overload, the back electromotive force (back emf) generated by the motor decreases. The back emf is the voltage opposing the current flow in the motor, and it is directly proportional to the speed of the motor. Therefore, when the motor is overloaded and drawing a high current, it results in a decrease in the back emf.Rate this question:
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- 19.
When an electron jumps from seventh orbit to forth orbit a particular Hydrogen band series formed which lies in
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Visible Region
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Ultraviolet region
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Infrared Region
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X-rays Region
Correct Answer
A. Infrared RegionExplanation
When an electron jumps from the seventh orbit to the fourth orbit in a hydrogen atom, it releases energy. This energy corresponds to a specific wavelength of light. In the case of this particular jump, the wavelength of the emitted light falls within the infrared region of the electromagnetic spectrum. This means that the hydrogen band series formed by this electron transition can be observed in the infrared region.Rate this question:
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- 20.
Which of the following is a conservative force?
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Air resistance
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Centripetal force
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Normal force
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Frictional force
Correct Answer
A. Centripetal forceExplanation
Centripetal force is a conservative force because it depends only on the position of an object and not on the path taken to reach that position. It is always directed towards the center of the circular motion and is responsible for keeping an object moving in a circular path. The work done by a conservative force is path-independent, meaning that the work done in moving an object from one point to another is the same regardless of the path taken.Rate this question:
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- 21.
The direction in which a document is printed on a paper through printer is known as:
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Page adjustment
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Page formatting
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Page orientation
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Page indents
Correct Answer
A. Page orientationExplanation
Page orientation refers to the direction in which a document is printed on a paper through a printer. It determines whether the document will be printed in portrait (vertical) or landscape (horizontal) mode. This setting is important as it affects the layout and formatting of the document. By selecting the appropriate page orientation, the user can ensure that the document is printed in the desired direction and fits well on the paper.Rate this question:
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- 22.
Database file has extension of:
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(.xls)
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(.gif)
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(.mdb)
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(.wav)
Correct Answer
A. (.mdb)Explanation
The correct answer is (.mdb) because the file extension .mdb is commonly used for Microsoft Access database files. This file format is used to store data in a structured manner and allows for easy retrieval and manipulation of the data using database management software. The other file extensions mentioned (.xls, .gif, .wav) are used for different purposes such as Excel spreadsheets, image files, and audio files respectively, and are not typically used for databases.Rate this question:
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- 23.
A LAN is a combination of:
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Network adapter cards
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LAN application software
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LAN cable
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All of these
Correct Answer
A. All of theseExplanation
A LAN (Local Area Network) is a combination of network adapter cards, LAN application software, and LAN cables. Network adapter cards are necessary to connect devices to the network, LAN application software allows devices to communicate and share resources within the network, and LAN cables are used to physically connect devices to the network. Therefore, all of these components are essential for the functioning of a LAN.Rate this question:
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- 24.
Rabia is a noted dentist ______ in the region:
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however he teaches very good also.
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but he teaches very good in addition
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as well as an effective teacher.
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And too a very efficient teacher
Correct Answer
A. as well as an effective teacher.Explanation
The correct answer is "as well as an effective teacher." This answer correctly completes the sentence by introducing another aspect of Rabia's profession, which is being an effective teacher. The phrase "as well as" is used to indicate that Rabia is not only a noted dentist, but also an effective teacher.Rate this question:
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- 25.
Significant figures in the final answer of are
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3
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4
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2
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1
Correct Answer
A. 2Explanation
The answer is 2 because significant figures are the digits in a number that carry meaning in terms of precision. In this case, the final answer has 2 significant figures, indicating that there are two digits that are known with certainty and carry meaning in the context of the calculation.Rate this question:
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- 26.
Absolute zero on the Fahrenheit scale equals to
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None of these
Correct Answer
A. -
- 27.
The relationship between country to its capital is an example of:
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One of one
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One to many
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Many to many
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Recessive
Correct Answer
A. One of oneExplanation
The relationship between a country and its capital is a one-to-one relationship because each country has only one capital. Each country is uniquely associated with its capital, and there is no overlap or duplication in this relationship. Therefore, the correct answer is "One of one."Rate this question:
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- 28.
The arithmetic logic unit (ALU) performs the following actions:
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Control computer operations
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Perform arithmetic operations such as addition, subtraction
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Perform logical comparisons such as equal, greater than, less than
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Both B & C
Correct Answer
A. Both B & CExplanation
The arithmetic logic unit (ALU) is responsible for performing arithmetic operations such as addition and subtraction, as well as logical comparisons such as equal, greater than, and less than. Therefore, the correct answer is that the ALU performs both B (performing arithmetic operations) and C (performing logical comparisons).Rate this question:
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- 29.
SQL is
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An unstructured language
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A structured language
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An object-oriented language
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A software
Correct Answer
A. A structured languageExplanation
SQL (Structured Query Language) is a structured language used for managing and manipulating relational databases. It is specifically designed for querying, inserting, updating, and deleting data in a structured manner. SQL follows a specific syntax and set of rules to ensure data integrity and consistency. It is not an unstructured language like natural languages, nor is it an object-oriented language like Java or C++. SQL is a software tool that allows users to interact with databases and perform various operations on the data stored within them.Rate this question:
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- 30.
At a point 15 meters away from the base of 15 meters high house, the angle of elevation of the top is:
Correct Answer
A.Explanation
The angle of elevation of the top of a 15-meter high house from a point 15 meters away from its base can be determined using trigonometry. The angle of elevation is the angle between the horizontal line and the line of sight from the observer to the top of the house. In this case, we have a right triangle with the height of the house as the opposite side and the distance from the base as the adjacent side. Using the tangent function, we can calculate the angle of elevation as the arctan(15/15) which simplifies to 45 degrees.Rate this question:
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- 31.
If ABCD is a parallelogram in which A(2,3), B (1,4) , C(0,5) , the coordinates of D are
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(1,-4)
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(1,4)
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(4,1)
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(-1,-4)
Correct Answer
A. (1,4)Explanation
The coordinates of D can be found by using the properties of a parallelogram. Since opposite sides of a parallelogram are parallel, the vector formed by the points A and B is equal to the vector formed by the points C and D.
Using the coordinates of A and B, we can calculate the vector AB as (1,1).
To find the coordinates of D, we need to add this vector to the coordinates of C.
Adding (1,1) to (0,5) gives us (1,6).
Therefore, the coordinates of D are (1,6).Rate this question:
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- 32.
Ali wants to go to the university. He starts from his home which is in the East and comes to a crossing. The road to the left ends in a theater, straight ahead is the hospital. In which direction is the university?
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East
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West
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North
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South
Correct Answer
A. North -
- 33.
Let i,j and k be unit vectors then
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1
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0
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3
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2
Correct Answer
A. 0Explanation
Since the question states that i, j, and k are unit vectors, this means that they have a magnitude of 1. Therefore, any scalar multiple of a unit vector will also have a magnitude of 1. In the given answer, the scalar multiple is 0, which means that the resulting vector will have a magnitude of 0. Hence, the correct answer is 0.Rate this question:
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- 34.
The position of a particle at any time 't' is given by the relation whereas is a constant and , then dimensions of respectively are:
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and
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and
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and
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and
Correct Answer
A. andExplanation
The given relation represents the position of a particle at any time 't'. The position is given by the product of a constant 'a' and 't' raised to the power of 'n'. The dimensions of 'a' can be determined by analyzing the dimensions of the given relation. Since position has dimensions of length, 'a' must have dimensions of length divided by time to the power of 'n'. Therefore, the dimensions of 'a' are [L^(1-n) T^n].Rate this question:
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- 35.
If a gymnast sitting on stool with his arms stretched lowers his arms:
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The angular speed decreases
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The angular speed increases
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Angular speed remains same
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Angular speed neither increases nor decreases
Correct Answer
A. The angular speed increasesExplanation
When a gymnast sitting on a stool with his arms stretched lowers his arms, the moment of inertia decreases. According to the conservation of angular momentum, when the moment of inertia decreases, the angular speed increases. This means that the gymnast's rotational speed increases as he lowers his arms.Rate this question:
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- 36.
Computer Science Which of the following is not true about token ring protocol?
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There is only one token in a network
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No collision can occur
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Uses central device
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All of these
Correct Answer
A. Uses central deviceExplanation
The token ring protocol is a network protocol that allows devices to take turns transmitting data on a network. One of the characteristics of this protocol is that there is only one token in the network, which is passed from one device to another to control access to the network. Another characteristic is that no collision can occur because only the device with the token can transmit data. However, the statement "Uses central device" is not true because the token ring protocol does not require a central device to control the network.Rate this question:
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- 37.
Which of the following systems of equations has as solution set?
Correct Answer
A. -
- 38.
Which of the following functions is/are odd ?
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I only
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II and III
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III only
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II only
Correct Answer
A. III onlyExplanation
The correct answer is III only because an odd function is symmetric about the origin. This means that if you reflect the function across the y-axis, it remains the same. Function III satisfies this condition, while functions I and II do not.Rate this question:
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- 39.
Which of the following acts as capillary tube?
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Gas Pipe
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Water Pipe
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Syringe
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All of these
Correct Answer
A. All of theseExplanation
All of the options mentioned in the question can act as a capillary tube. A capillary tube is a narrow tube with a small internal diameter that is used to transport fluids or gases. Both gas pipes and water pipes can be designed with a small internal diameter to create capillary action. Similarly, a syringe also has a narrow tube that allows for the movement of fluids through capillary action. Therefore, all of these options can function as capillary tubes.Rate this question:
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- 40.
If the displacement of a particle executing SHM is given by in meters, then the frequency and maximum velocity of the particle are:
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35 Hz , 66 m/s
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45 Hz , 66 m/s
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58 Hz , 132 m/s
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35 Hz , 132 m/s
Correct Answer
A. 45 Hz , 66 m/s -
- 41.
If electron accelerated by potential difference of 54 V. If mass of electron increases sixteen times by keeping the potential difference constant. The wavelength of electron
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Increases sixteen times
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Decreases sixteen times
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Decreases four times
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Increases four times
Correct Answer
A. Decreases four timesExplanation
When an electron is accelerated by a potential difference, its kinetic energy increases. According to the de Broglie wavelength equation, the wavelength of a particle is inversely proportional to its momentum. Since momentum is directly proportional to the square root of kinetic energy, increasing the kinetic energy of the electron will decrease its wavelength. If the mass of the electron increases sixteen times while the potential difference remains constant, its kinetic energy will decrease by a factor of sixteen. Therefore, the wavelength of the electron will decrease by a factor of four (not sixteen), resulting in the correct answer: decreases four times.Rate this question:
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- 42.
What is the value of integer a, b, c after execution of following code: int x=50; if(x>40) a=10; if(x>45) a=2; for(int i=0 ; a == 2 ; i ++ ) a++; b=a; c=a*b;
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A = 3 , b = 3, c = 9
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A = 10 , b = 10, c = 100
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A = 2, b = 2, c = 4
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Infinity loop
Correct Answer
A. A = 3 , b = 3, c = 9Explanation
The initial value of x is 50. The first if statement checks if x is greater than 40, which is true. Therefore, a is assigned a value of 10. The second if statement checks if x is greater than 45, which is also true. Therefore, a is reassigned a value of 2. The for loop then executes as long as a is equal to 2. In the first iteration of the loop, a is incremented by 1, making it 3. Since a is no longer equal to 2, the loop terminates. After the loop, b is assigned the value of a, which is 3. Finally, c is assigned the value of a multiplied by b, which is 9. Hence, the values of a, b, and c after the execution of the code are 3, 3, and 9 respectively.Rate this question:
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- 43.
Which of the following statements is/are true? I) Any conditional and its Contrapositive are equivalent II) Converse and Contrapositive are equivalent III) Converse and Inverse are equivalent IV) Inverse and Contrapositive are equivalent
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I,II,III and IV
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I and IV only
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I and III only
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III and IV only
Correct Answer
A. I and III onlyExplanation
The correct answer is "I and III only".
Statement I is true because a conditional statement and its contrapositive have the same truth value. The contrapositive is formed by negating both the hypothesis and the conclusion of the conditional statement.
Statement III is also true because the converse and the inverse of a conditional statement have the same truth value. The converse is formed by switching the hypothesis and the conclusion of the conditional statement, while the inverse is formed by negating both the hypothesis and the conclusion.
Therefore, both statements I and III are true, while statements II and IV are not equivalent to the others.Rate this question:
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- 44.
Choke is basically a
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RLC series circuit
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LR parallel circuit
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LR series circuit
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Inductive circuit
Correct Answer
A. LR series circuitExplanation
The correct answer is LR series circuit. In an LR series circuit, the components connected in series are an inductor (L) and a resistor (R). This type of circuit allows the flow of current through the inductor, creating a magnetic field. The resistor limits the current flow. In an LR series circuit, the voltage across the inductor and resistor are in phase, and the impedance is determined by the values of the inductor and resistor.Rate this question:
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- 45.
In transistor, which of the following statements is true ?
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Emitter-base junction is reverse biased by
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Emitter-base junction is forward biased by
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Base-collector junction is forward biased by
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Both A & C
Correct Answer
A. Emitter-base junction is forward biased byExplanation
The correct answer is "Emitter-base junction is forward biased by". In a transistor, the emitter-base junction is typically forward biased to allow the flow of current from the emitter to the base. This forward biasing helps in the amplification of the input signal and controls the current flow through the transistor.Rate this question:
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- 46.
A+=b is equivalent to:
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B+=a
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A=+b
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A=a+b
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B=b+a
Correct Answer
A. A=a+bExplanation
The expression a+=b is equivalent to a=a+b. This means that the value of a is updated by adding the value of b to it. The shorthand notation += is used to perform this addition and assignment operation in a single step. Therefore, the correct answer is a=a+b.Rate this question:
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- 47.
If the density of a planet Z is increased by sixteen times then the value of gravity at that planet will become
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Sixteen times increased
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Four times decreased
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Sixteen times decrease
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Four times increased
Correct Answer
A. Sixteen times increasedExplanation
If the density of a planet Z is increased by sixteen times, it means that there is more mass packed into the same volume. As gravity is directly proportional to mass, increasing the density will also increase the gravitational force. Therefore, the value of gravity at that planet will become sixteen times increased.Rate this question:
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- 48.
Select the correct spelling:
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Auspiceous
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Auspacious
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Auspicious
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Auspecious
Correct Answer
A. AuspiciousExplanation
The correct spelling is "Auspicious." This word means favorable or promising, often used to describe a situation or event that is likely to bring good fortune or success.Rate this question:
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- 49.
Complete sequence with appropriate number 4,9,25,49,121,169,?
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256
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289
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225
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324
Correct Answer
A. 289Explanation
The given sequence follows a pattern where each number is the square of a prime number. Starting with 2, we have 2^2 = 4. Then, 3^2 = 9, 5^2 = 25, 7^2 = 49, 11^2 = 121, 13^2 = 169. The next prime number is 17, so 17^2 = 289. Therefore, the missing number in the sequence is 289.Rate this question:
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