Question # 1

Entropy remains constant.

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Isothermal process

Adiabatic process

Isochoric process

Isobaric process

The mean kinetic energy of gas is at.

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0 ^oC

-273 ^oC

100 K

100 ^oC

The efficiency of a Carnot Heat Engine is 100% if temperature of sink T2 is.

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0 ^oC

0 K

0 ^oF

100 K

The curve representing an adiabatic process is called.

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An adiabatic

An isotherm

Both of these

None of these

Environmental crisis are also known as

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Population crisis

Entropy crisis

War crisis

Mass crisis

Efficiency of a heat engine working between 27 ^oC and 32 ^oC will be.

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50%

90%

40%

62%

The efficiency of diesel engine is about

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25% to 30%

35% to 40%

40% to 50%

50% to 60%

A Carnot engine has an efficiency of 50% when its sink temperature is at 27 ^oC. The temperature of source.

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273^oC

300 ^oC

327 ^oC

373 ^oC

Pascal is the unit of

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Pressure

Force

Tension

Weight

The efficiency of diesel engine is about

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25 % to 30%

35% to 40%

40% to 50%

50% to 60%

At constant temperature and pressure, if volume of given mass of a gas is doubled then density is.

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Doubled

1/4 original

1/2 of original

Unchanged

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Physics English Medium Fsc Part 1 Chapter 11 Online MCQs Test MCQs With Answers

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