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Engineering Thermodynamics

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

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

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Engineering Thermodynamics
During throttling process

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

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Engineering Thermodynamics
According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas.

Do not change
None of these
Change
Both (A) and (B)

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Engineering Thermodynamics
Work done is zero for the following process

All of the listed here
Free expansion
Constant volume
Throttling

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Engineering Thermodynamics
The following cycle is used for air craft refrigeration

Carnot cycle
Reversed Brayton cycle
Brayton cycle
Joule cycle

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Engineering Thermodynamics
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from

Basic law of thermodynamics
Zeroth low of thermodynamic
Second law to thermodynamics
First law of thermodynamics

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