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Engineering Thermodynamics

Engineering Thermodynamics
The change of entropy, when heat is absorbed by the gas, is

Positive or negative
Negative
None of these
Positive

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Engineering Thermodynamics
Temperature of a gas is produced due to

Surface tension of molecules
Repulsion of molecules
Its heating value
Kinetic energy of molecules

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Engineering Thermodynamics
Universal gas constant is defined as equal to product of the molecular weight of the gas and

Specific heat at constant pressure
Gas constant
Specific heat at constant volume
Ratio of two specific heats

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Engineering Thermodynamics
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

Equal to
Less than
None of these
Greater than

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Engineering Thermodynamics
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

Ru × T
3 Ru × T
2 Ru × T
1.5 Ru × T

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Engineering Thermodynamics
A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as

Reversible cycle
None of these
Irreversible cycle
Thermodynamic cycle

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MORE MCQ ON Engineering Thermodynamics

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