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Engineering Thermodynamics

Engineering Thermodynamics
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

1 - rγ - 1
rγ - 1
1 - (1/r) γ - 1/ γ
1 - (1/r) γ/γ - 1

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Engineering Thermodynamics
A cycle consisting of one constant pressure, one constant volume and two isentropic processes is known as

Stirling cycle
Diesel cycle
Carnot cycle
Otto cycle

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Engineering Thermodynamics
When the gas is heated at constant volume, the heat supplied

Does some external work during expansion
Both (A) and (B)
None of these
Increases the internal energy of the gas and increases the temperature of the gas

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Engineering Thermodynamics
Which of the following cycles is not a reversible cycle?

Carnot
None of the listed here
Ericsson
Stirling

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Engineering Thermodynamics
Carnot cycle has maximum efficiency for

Diesel engine
Irreversible engine
Petrol engine
Reversible engine

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Engineering Thermodynamics
The efficiency of Carnot cycle is maximum for

Gas engine
Reversible engine
Steam engine
Petrol engine

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