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Engineering Thermodynamics

Engineering Thermodynamics
Characteristic gas constant of a gas is equal to

Cp - Cv
Cp /Cv
Cp + Cv
Cv /Cp

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Engineering Thermodynamics
One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to

1200 K
800 K
1400 K
1000 K

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

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

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Engineering Thermodynamics
The principal constituents of a fuel are

Sulphur and hydrogen
Oxygen and hydrogen
Sulphur and oxygen
Carbon and hydrogen

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Engineering Thermodynamics
When the gas is cooled at constant pressure,

Both temperature and volume increases
Both temperature and volume decreases
Its volume increases but temperature decreases
Its temperature increases but volume decreases

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Engineering Thermodynamics
The unit of pressure in S.I. units is

kg/cm²
mm of water column
Pascal
Dyne per square cm

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MORE MCQ ON Engineering Thermodynamics

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