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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following cycles has maximum efficiency?

Rankine
Carnot
Stirling
Brayton

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Engineering Thermodynamics
The efficiency of Joule cycle is

Greater than Carnot cycle
Less than Carnot cycle
None of these
Equal to Carnot cycle

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Engineering Thermodynamics
Molecular volume of any perfect gas at 600 × 103 N/m² and 27°C will be

4.17 m3/kg mol
0.15 m3/kg mol
41.7 m3/kg mol
400 m3/kg mol

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Engineering Thermodynamics
Which of the following processes is irreversible process?

Isothermal
Adiabatic
Throttling
All of these

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Engineering Thermodynamics
The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to

3E/4
E/3
2E/3
E/2

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Engineering Thermodynamics
If a system after undergoing a series of processes, returns to the initial state then

Process is executed in closed system cycle
Sum of heat and work transfer will be zero
Its entropy will change due to irreversibility
Process is thermodynamically in equilibrium

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