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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of a Carnot engine depends on

Temperatures of source and sink
Working substance
Design of engine
Size of engine

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Engineering Thermodynamics
In an isothermal process, the internal energy of gas molecules

May increase/decrease depending on the properties of gas
Increases
Remain constant
Decreases

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Engineering Thermodynamics
In closed cycle gas turbine, the air is compressed

Polytropically
Isothermally
Isentropically
None of these

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Engineering Thermodynamics
The calorific value of gaseous fuel is expressed in

kJ
kJ/kg
kJ/m2
kJ/m3

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Engineering Thermodynamics
The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will

Decrease
Remain unchanged
Increase
Increase/decrease depending on application

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Engineering Thermodynamics
The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to

E/3
E/2
3E/4
2E/3

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MORE MCQ ON Engineering Thermodynamics

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