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Engineering Thermodynamics

Engineering Thermodynamics
The polytropic index (n) is given by

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

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Engineering Thermodynamics
The efficiency of Stirling cycle is __________ Carnot cycle.

Less than
None of these
Greater than
Equal to

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Engineering Thermodynamics
The fuel mostly used in steam boilers is

Coking bituminous coal
Non-coking bituminous coal
Brown coal
Peat

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Engineering Thermodynamics
The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Kelvin
Joule
Gay-Lussac
Clausis

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Engineering Thermodynamics
The compression ratio is the ratio of

Total volume to swept volume
Total volume to clearance volume
Swept volume to total volume
Swept volume to clearance volume

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Engineering Thermodynamics
The unit of time in S.I. units is

Hour
Second
Day
Minute

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