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Engineering Thermodynamics

Engineering Thermodynamics
On weight basis, air contains following parts of oxygen

73
25
23
21

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Engineering Thermodynamics
In an irreversible process, there is a

No gain of heat
Gain of heat
Loss of heat
No loss of heat

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Engineering Thermodynamics
When the gas is cooled at constant pressure,

Its volume increases but temperature decreases
Its temperature increases but volume decreases
Both temperature and volume decreases
Both temperature and volume increases

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Engineering Thermodynamics
One Joule (J) is equal to

1 N-m
1 kN-m
10 N-m/s
10 kN-m/s

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Engineering Thermodynamics
The amount of heat generated per kg of fuel is known as

Lower calorific value
Calorific value
Higher calorific value
Heat energy

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Engineering Thermodynamics
A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be

30 Nm
300 Nm
300,000 Nm
3000 Nm

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MORE MCQ ON Engineering Thermodynamics

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