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Engineering Thermodynamics

Engineering Thermodynamics
In closed cycle gas turbine, the air is compressed

None of these
Isothermally
Isentropically
Polytropically

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Engineering Thermodynamics
One kg of hydrogen requires 8 kg of oxygen and produces

1 kg of water
8 kg of water
7 kg of water
9 kg of water

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Engineering Thermodynamics
Minimum work in compressor is possible when the value of adiabatic index ā€˜n’ is equal to

1.35
0.75
1
1.27

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Engineering Thermodynamics
The temperature at which the volume of a gas becomes zero is called

None of these
Absolute scale of temperature
Absolute temperature
Absolute zero temperature

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Engineering Thermodynamics
For same compression ratio and for same heat added

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

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

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

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