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Engineering Thermodynamics

Engineering Thermodynamics
For reversible adiabatic process, change in entropy is

Negative
Maximum
Minimum
Zero

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Engineering Thermodynamics
The behavior of super-heated vapour is similar to that of

Perfect gas
Steam
Ordinary gas
Air

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Engineering Thermodynamics
The main cause for the irreversibility is

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

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Engineering Thermodynamics
Water contained in a beaker can be made to boil by passing steam through it

At atmospheric pressure
Any pressure
Not possible
At a pressure greater than atmospheric pressure

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Engineering Thermodynamics
All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called

Charles' law
Gay-Lussac law
Joule's law
Boyle's law

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Engineering Thermodynamics
For the same compression ratio, the efficiency of dual combustion cycle is

Less than Diesel cycle
Greater than Diesel cycle and less than Otto cycle
Less than Diesel cycle and greater than Otto cycle
Greater than Diesel cycle

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MORE MCQ ON Engineering Thermodynamics

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