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Engineering Thermodynamics

Engineering Thermodynamics
The unit of pressure in S.I. units is

Dyne per square cm
Pascal
kg/cm²
mm of water column

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Engineering Thermodynamics
Which of the following is an irreversible cycle?

Ericsson
Carnot
Stirling
None of these

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Engineering Thermodynamics
If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as

Throttling
Adiabatic expansion
Free expansion
Hyperbolic expansion

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Engineering Thermodynamics
The atomic mass of nitrogen is __________ oxygen.

Equal to
Less than
More than
None of these

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Engineering Thermodynamics
When the gas is cooled at constant pressure,

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

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Engineering Thermodynamics
The ratio of molar specific heats for mono-atomic gas is

1
1.67
1.87
1.4

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