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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following processes is irreversible process?

All of these
Isothermal
Throttling
Adiabatic

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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
Enthalpy
Temperature
Pressure

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Engineering Thermodynamics
The efficiency of Joule cycle is

None of these
Greater than Carnot cycle
Equal to Carnot cycle
Less than Carnot cycle

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Engineering Thermodynamics
A process of heating crude oil to a high temperature under a very high pressure to increase the yield of lighter distillates, is known as

Fractional distillation
Cracking
Full distillation
Carbonization

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Engineering Thermodynamics
Characteristic gas constant of a gas is equal to

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

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Engineering Thermodynamics
For same compression ratio and for same heat added

Diesel cycle is more efficient than Otto cycle
Efficiency depends on other factors
Both Otto and Diesel cycles are equally efficient
Otto cycle is more efficient than Diesel cycle

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