Question # 1

The Carnot cycle can be shown by which graph

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P - T graph

P - V Graph

V- T graph

PV -T graph

The number of spark plug needed in diesel engine is

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0

2

3

4

A heat engine operates between the temperature 1000 K and 400 K, Its efficiency is.

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100%

70%

60%

50%

For a diatomic gas Cv= 5R/2 then gamma for this gas is.

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5/7

4/35

7/5

35/4

Size of the molecules is much smaller as compared to the

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Mass of the molecules

Distance between the molecules

Density of the molecules

Volume of the molecules

Pressure 'P' of a gas is defined as

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F/A

FA

F/V

F/D

The molecules of an ideal gas exert

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Force on each other

No force on each other

Large force on each other

Pressure on each other

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

No spark plug is needed in the

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Petrol engine

Diesel engine

Gas engine

Water engine

Temperature of a gas is increased from 27 oC to 127 oC. The ratio of its mean K.E. will be

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3/4

9/16

4/3

10/9

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

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Thermodynamic scale

Centigrade scale

Fahrenheit scale

Regnault scale

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

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