Questions

Q:

The Comptroller and Auditor General is closely connected with which of the following Committees of Parliament?

A) The Estimates Committee B) The Committee on Public Undertakings
C) The Public Accounts Committee D) All of these
 
Answer & Explanation Answer: C) The Public Accounts Committee

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Q:

If an object moves in a purely rotatory motion, then each constituent particle of the body moves in a circle, the centre of which is located on a line is called _______.

A) the axis of rotation B) the line of rotation
C) the spinning rod D) the fixed line
 
Answer & Explanation Answer: A) the axis of rotation

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Q:

If the power of a corrective lens is +2.0 D, then it is a

A) convex lens B) concave lens
C) convex mirror D) concave mirror
 
Answer & Explanation Answer: A) convex lens

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Q:

An object, starting from rest, moves with constant acceleration of 4 m/s2. After 8 s, its speed is

A) 16 m/s B) 8 m/s
C) 32 m/s D) 4 m/s
 
Answer & Explanation Answer: C) 32 m/s

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Q:

Notepad' is a text editor in which of the following operating systems?

A) Windows B) Google Chrome
C) Mozilla Firefox D) Macintosh
 
Answer & Explanation Answer: A) Windows

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Q:

Convert decimal number 106 to binary.

A) 1101000 B) 1101010
C) 1100110 D) 1110000
 
Answer & Explanation Answer: B) 1101010

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Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Q:

At what temperature (in Fahrenheit) pure water freezes?

A) 32 B) 0
C) 48 D) 37
 
Answer & Explanation Answer: A) 32

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