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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following gas has a minimum molecular mass?

Oxygen
Hydrogen
Nitrogen
Methane

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Engineering Thermodynamics
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

Greater than
Less than
None of these
Equal to

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Engineering Thermodynamics
Which of the following cycles has maximum efficiency?

Rankine
Carnot
Brayton
Stirling

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Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

900° to 1100°C
300° to 500°C
700° to 900°C
500° to 700°C

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Engineering Thermodynamics
Which of the following processes is irreversible process?

Throttling
Adiabatic
Isothermal
All of these

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Engineering Thermodynamics
Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant

Pressure
Temperature
Volume
Internal energy

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