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Engineering Thermodynamics

Engineering Thermodynamics
Entropy change depends on

Mass transfer
Heat transfer
Thermodynamic state
Change of temperature

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

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

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Dual cycle, Otto cycle, Diesel cycle
Diesel cycle, Otto cycle, Dual cycle
Otto cycle, Diesel cycle, Dual cycle
Dual cycle, Diesel cycle, Otto cycle

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Engineering Thermodynamics
The efficiency of Diesel cycle depends upon

Temperature limits
Pressure ratio
Compression ratio
Cut-off ratio and compression ratio

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Engineering Thermodynamics
The fuel mostly used in steam boilers is

Non-coking bituminous coal
Coking bituminous coal
Brown coal
Peat

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Engineering Thermodynamics
The efficiency of Diesel cycle increases with

Increase in cut-off
Decrease in cut-off
Constant cut-off
None of these

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MORE MCQ ON Engineering Thermodynamics

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