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Engineering Thermodynamics

Engineering Thermodynamics
The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Joule
Kelvin
Clausis
Gay-Lussac

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Engineering Thermodynamics
The unit of energy is S. I. units is

Joule meter (Jm)
Watt (W)
Joule (J)
Joule/meter (J/m)

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Engineering Thermodynamics
Characteristic gas constant of a gas is equal to

Cp /Cv
Cv /Cp
Cp - Cv
Cp + Cv

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Engineering Thermodynamics
When the gas is heated at constant volume, the heat supplied

Does some external work during expansion
Increases the internal energy of the gas and increases the temperature of the gas
None of these
Both (A) and (B)

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Engineering Thermodynamics
Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to

T
J²
Vr
J

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Engineering Thermodynamics
The efficiency of Diesel cycle depends upon

Pressure ratio
Compression ratio
Cut-off ratio and compression ratio
Temperature limits

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