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Engineering Thermodynamics

Engineering Thermodynamics
The energy of molecular motion appears as

Friction
Heat
Potential energy
Surface tension

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Engineering Thermodynamics
Which of the following processes are thermodynamically reversible?

Throttling
Isothermal and adiabatic
Constant volume and constant pressure
Free expansion

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Engineering Thermodynamics
During throttling process

No work is done by expanding steam
There is no change of internal energy of steam
All of these
Heat exchange does not take place

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Engineering Thermodynamics
The behavior of a perfect gas, undergoing any change in the variables which control physical properties, is governed by

Charles' law
All of the listed here
Boyle's law
Gay-Lussac law

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Engineering Thermodynamics
On volume basis, air contains following parts of oxygen

21
77
23
25

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Engineering Thermodynamics
The efficiency of Stirling cycle is __________ Carnot cycle.

Less than
Equal to
None of these
Greater than

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MORE MCQ ON Engineering Thermodynamics

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