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Engineering Thermodynamics

Engineering Thermodynamics
The entropy __________ in an irreversible cyclic process.

Decreases
Remains constant
None of these
Increases

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Engineering Thermodynamics
A sudden fall in the barometer reading is a sign of approaching

Storm
Cold wave
Fine weather
Rains

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Engineering Thermodynamics
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when

Process is isothermal
Process is isentropic and specific heat does not change with temperature
Flow is uniform and steady
Process is isentropic

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Engineering Thermodynamics
Temperature of a gas is produced due to

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

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Engineering Thermodynamics
On weight basis, air contains following parts of oxygen

73
25
23
21

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Engineering Thermodynamics
If a gas vapour is allowed to expand through a very minute aperture, then such a process is known as

Free expansion
Hyperbolic expansion
Throttling
Adiabatic expansion

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MORE MCQ ON Engineering Thermodynamics

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