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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for Diesel engines is

3 to 6
15 to 20
5 to 8
20 to 30

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Engineering Thermodynamics
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is

25 bar
34.81 bar
26.03 bar
23.97 bar

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Engineering Thermodynamics
The process is adiabatic, if the value of n in the equation pvn = C, is

γ
One
∝
Zero

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Engineering Thermodynamics
According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as

Absolute temperature, if volume is kept constant
Volume, if temperature is kept constant
None of these
Temperature

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Engineering Thermodynamics
During throttling process

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

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Engineering Thermodynamics
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

1.5 Ru × T
3 Ru × T
2 Ru × T
Ru × T

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MORE MCQ ON Engineering Thermodynamics

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