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Q:

Which of the following is not a unit of energy?

A) Calorie B) Joule
C) electron volt D) Watt
 
Answer & Explanation Answer: D) Watt

Explanation:

The watt(symbol: W) is a unit of power. In the International System of Units (SI) it is defined as a derived unit of 1 joule per second, and is used to quantify the rate of energy transfer. In dimensional analysis it is described by

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Q:

Bandwidth is the

A) a measure of the width of a range of frequencies B) the rate of data transfer
C) both a & b D) None of the above
 
Answer & Explanation Answer: C) both a & b

Explanation:
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Q:

Why does a cannon recoil after firing ?

A) Conservation of energy B) Backward thrust of gases produced
C) Newton's third law of motion D) Newton's first law of motion
 
Answer & Explanation Answer: C) Newton's third law of motion

Explanation:
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Q:

Instrument for measuring wind velocity is called

A) Coulombmeter B) Anemometer
C) Cyanometer D) Chronometer
 
Answer & Explanation Answer: B) Anemometer

Explanation:
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Q:

In which form is the supplied heat energy stored during change in temperature of substance?

A) Heat energy B) Kinetic energy
C) Potential energy D) Both kinetic and potential energy
 
Answer & Explanation Answer: B) Kinetic energy

Explanation:
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Q:

The power of an earthquake is expressed in terms of a magnitude on a scale called __________ scale.

A) Schmitt B) Hutton
C) Werner D) Richter  
 
Answer & Explanation Answer: D) Richter  

Explanation:
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Q:

During _____________ motion of an object along a straight line, the velocity remains constant with time.

A) linear B) translational
C) uniform D) equilibrium
 
Answer & Explanation Answer: C) uniform

Explanation:
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Q:

Which of the following is a device designed to protect electrical devices from voltage spikes?

A) Voltage unloader B) Surge protector
C) Heat protector D) Current unloader
 
Answer & Explanation Answer: B) Surge protector

Explanation:
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