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Engineering Thermodynamics

Engineering Thermodynamics
For which of the following substances, the gas laws can be used with minimum error

Saturated steam
Dry steam
Superheated steam
Wet steam

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Engineering Thermodynamics
The fuel mostly used in blast furnace for extracting pig iron from iron ores is

Bituminous coal
Hard coke
Pulverized coal
Soft coke

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Engineering Thermodynamics
Kerosene is distilled at

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

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Engineering Thermodynamics
Addition of heat at constant pressure to a gas results in

Raising its pressure
Raising its temperature
Raising its volume
Raising its temperature and doing external work

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Engineering Thermodynamics
The polytropic index (n) is given by

log (p2/ p1)/log (v1/ v2)
log [(p1v1)/(p2v2)]
log (v1/ v2)/ log (p1/p2)
log (p1p2)/log (v1v2)

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Engineering Thermodynamics
Second law of thermodynamics defines

Internal energy
Entropy
Work
Heat

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MORE MCQ ON Engineering Thermodynamics

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