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Engineering Thermodynamics

Engineering Thermodynamics
The compression ratio for Diesel engines is

5 to 8
15 to 20
3 to 6
20 to 30

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Engineering Thermodynamics
Which of the following processes are thermodynamically reversible?

Isothermal and adiabatic
Throttling
Free expansion
Constant volume and constant pressure

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Engineering Thermodynamics
The main cause for the irreversibility is

Mechanical and fluid friction
All of these
Unrestricted expansion
Heat transfer with a finite temperature difference

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Engineering Thermodynamics
The unit of energy is S. I. units is

Joule meter (Jm)
Watt (W)
Joule/meter (J/m)
Joule (J)

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Engineering Thermodynamics
Boyle's law i.e. pV = constant is applicable to gases under

Only small range of pressures
Steady change of pressures
High range of pressures
All ranges of pressures

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Engineering Thermodynamics
The basis for measuring thermodynamic property of temperature is given by

Zeroth law of thermodynamics
First law of thermodynamics
Second law of thermodynamics
Third law of thermodynamics

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MORE MCQ ON Engineering Thermodynamics

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