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Engineering Thermodynamics

Engineering Thermodynamics
Minimum work in compressor is possible when the value of adiabatic index ‘n’ is equal to

1
1.35
0.75
1.27

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Engineering Thermodynamics
A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called

Adiabatic process
Hyperbolic process
Polytropic process
Isothermal process

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mcp (T2 + T1)
mR (T2 - T1)
mcp (T2 - T1)
mcv (T2 - T1)

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Engineering Thermodynamics
Calorie is a measure of

Entropy
Specific heat
Quantity of heat
Thermal capacity

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Engineering Thermodynamics
The molecular mass expressed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of

224 liters
22.4 liters
0.224 liters
2.24 liters

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Engineering Thermodynamics
For which of the following substances, the gas laws can be used with minimum error

Wet steam
Saturated steam
Superheated steam
Dry steam

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MORE MCQ ON Engineering Thermodynamics

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