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Engineering Thermodynamics

Engineering Thermodynamics
Petrol is distilled at

65° to 220°C
470° to 550°C
345° to 470°C
220° to 345°C

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Engineering Thermodynamics
The value of cp/cv for air is

1.4
1
2.3
1.45

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Engineering Thermodynamics
If in the equation pvn = C, the value of n = ∝, then the process is called

Constant pressure process
Constant volume process
Adiabatic process
Isothermal process

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Engineering Thermodynamics
Compressed air coming out from a punctured football

Becomes cooler
May become hotter or cooler depending upon the humidity of the surrounding air
Becomes hotter
Remains at the same temperature

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Engineering Thermodynamics
The ___ is obtained when carbonization of coal is carried out at 500° to 700° C.

Hard coal
Soft coal
Pulverized coal
Bituminous coal

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Engineering Thermodynamics
The efficiency of the Carnot cycle may be increased by

Increasing the highest temperature
Increasing the lowest temperature
Decreasing the highest temperature
Keeping the lowest temperature constant

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MORE MCQ ON Engineering Thermodynamics

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