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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following processes is irreversible process?

Isothermal
All of these
Adiabatic
Throttling

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Engineering Thermodynamics
In a free expansion process

Work done is zero
Heat transfer is zero
Work done is zero but heat increases
Both (A) and (B) above

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Engineering Thermodynamics
The work ratio of simple gas turbine cycle depends upon

Maximum cycle temperature
Minimum cycle temperature
Pressure ratio
All of these

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Engineering Thermodynamics
The statement that molecular weights of all gases occupy the same volume is known as

Dalton's law
Law of thermodynamics
Avogadro's hypothesis
Gas law

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Engineering Thermodynamics
Isochoric process is one in which

No mechanical work is done by the system
All parameters remain constant
Very little mechanical work is done by the system
Free expansion takes place

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Engineering Thermodynamics
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when

Process is isentropic
Flow is uniform and steady
Process is isentropic and specific heat does not change with temperature
Process is isothermal

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