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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency and work ratio of a simple gas turbine cycle are

Very high
Low
Very low
High

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Engineering Thermodynamics
In S. I. units, the value of the universal gas constant is

8314 J/kg mole-K
8.314 J/kg mole-K
831.4 J/kg mole-K
83.14 J/kg mole-K

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Engineering Thermodynamics
Which of the following items is not a path function?

Work
Heat
Thermal conductivity
Kinetic energy

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Engineering Thermodynamics
Temperature of a gas is produced due to

Surface tension of molecules
Kinetic energy of molecules
Repulsion of molecules
Its heating value

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

Methane
Nitrogen
Hydrogen
Oxygen

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Engineering Thermodynamics
A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be

300 Nm
3000 Nm
30 Nm
300,000 Nm

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