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Engineering Thermodynamics

Engineering Thermodynamics
A cycle consisting of two adiabatic and two constant pressure processes is known as

Otto cycle
Ericsson cycle
Stirling cycle
Joule cycle

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Engineering Thermodynamics
In an isothermal process, the internal energy

Decreases
First increases and then decreases
Increases
Remain constant

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Engineering Thermodynamics
Those substances which have so far not been resolved by any means into other substances of simpler form are called

Molecules
Elements
Compounds
Atoms

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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
For a perfect gas, according to Boyle’s law (where P = Absolute pressure, V = Volume and T = Absolute temperature)

P/T = constant, if v is kept constant
P v = constant, if T is kept constant
T/P = constant, if v is kept constant
V/T = constant, if p is kept constant

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Engineering Thermodynamics
Minimum work in compressor is possible when the value of adiabatic index ‘n’ is equal to

1.27
1.35
0.75
1

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MORE MCQ ON Engineering Thermodynamics

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