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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following variables controls the physical properties of a perfect gas?

Volume
Temperature
Pressure
All of these

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Engineering Thermodynamics
The mass of excess air supplied is equal to

(100/23) × Mass of excess oxygen
(23/100) × Mass of excess carbon
(100/23) × Mass of excess carbon
(23/100) × Mass of excess oxygen

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Engineering Thermodynamics
The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents

Heat rejected
Heat absorbed
None of the listed here
Either heat absorbed or heat rejected

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Engineering Thermodynamics
The first law of thermodynamics is the law of

Conservation of heat
Conservation of energy
Conservation of mass
Conservation of momentum

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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
1.35
0.75

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

21
77
23
25

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MORE MCQ ON Engineering Thermodynamics

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