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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of Diesel cycle depends upon

Compression ratio
Cut-off ratio and compression ratio
Temperature limits
Pressure ratio

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Engineering Thermodynamics
The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

γ
1
∝

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Engineering Thermodynamics
Characteristic gas constant of a gas is equal to

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

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Engineering Thermodynamics
If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant

Volume
Temperature
Pressure
Enthalpy

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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

30 Nm
3000 Nm
300,000 Nm
300 Nm

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Engineering Thermodynamics
Isochoric process is one in which

Very little mechanical work is done by the system
No mechanical work is done by the system
Free expansion takes place
All parameters remain constant

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MORE MCQ ON Engineering Thermodynamics

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