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Engineering Thermodynamics

Engineering Thermodynamics
Carnot cycle has maximum efficiency for

Petrol engine
Irreversible engine
Reversible engine
Diesel engine

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Engineering Thermodynamics
In a free expansion process

Both (A) and (B) above
Work done is zero but heat increases
Work done is zero
Heat transfer is zero

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Engineering Thermodynamics
The principal constituents of a fuel are

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

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Engineering Thermodynamics
Boyle's law i.e. pV = constant is applicable to gases under

High range of pressures
All ranges of pressures
Steady change of pressures
Only small range of pressures

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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

3000 Nm
300 Nm
30 Nm
300,000 Nm

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Engineering Thermodynamics
The atomic mass of sulphur is

14
16
12
32

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MORE MCQ ON Engineering Thermodynamics

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