Question # 1

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

The measure of hotness or coldness of a substance is.

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Temperature

Heat

Internal energy

Energy

S.I Unit of pressure of gas is.

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Nm

N.m

N2/m

N3m

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

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50%

90%

40%

62%

The temperature scale which is independent of nature of substance is.

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Thermodynamic scale

Centigrade scale

Fahrenheit scale

Regnault scale

Average translational K.E. of molecules for an ideal gas is given as

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1/2 KT

KT

2/3 KT

3/2 KT

The work done is isochoric process is.

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Constant

Variable

Zero

Depend upon condition

No spark plug is needed in the

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Petrol engine

Diesel engine

Gas engine

Water engine

If heat is added to a system, then its entropy will.

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Increases and positive

Decrease and positive

Increases but negative

Decreases but negative

The difference between tow molar capacities is equal to.

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Plank's constant

General gas equation

Molar gas constant

Boltzmann constant

Not change in entropy of a system after one complete Carnot cycle is.

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Positive

Negative

Zero

None of these

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

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