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Engineering Thermodynamics

Engineering Thermodynamics
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

Less than
Equal to
None of these
Greater than

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Engineering Thermodynamics
The unit of universal gas constant is

None of these

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Engineering Thermodynamics
The fuel mostly used in steam boilers is

Peat
Brown coal
Non-coking bituminous coal
Coking bituminous coal

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Engineering Thermodynamics
The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will

Decrease
Increase/decrease depending on application
Remain unchanged
Increase

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Engineering Thermodynamics
General gas equation is

PV=KiRT
PV = C
PV=mRT
PV=nRT

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Engineering Thermodynamics
The value of n = 1 in the polytropic process indicates it to be

Reversible process
Irreversible process
Adiabatic process
Isothermal process

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