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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following processes is irreversible process?

All of these
Adiabatic
Isothermal
Throttling

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Engineering Thermodynamics
The following cycle is used for air craft refrigeration

Joule cycle
Brayton cycle
Carnot cycle
Reversed Brayton cycle

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Engineering Thermodynamics
According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.

Decreases
Increases
Remains constant
None of these

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

23
73
25
21

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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
Pressure
Enthalpy
Temperature

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Engineering Thermodynamics
The natural petroleum may be separated into

Lubricating oil
Kerosene
Fuel oil
Petrol

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