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Engineering Thermodynamics

Engineering Thermodynamics
The efficiency of Diesel cycle increases with

Increase in cut-off
Constant cut-off
Decrease in cut-off
None of these

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Engineering Thermodynamics
The efficiency of the Carnot cycle may be increased by

Keeping the lowest temperature constant
Increasing the highest temperature
Increasing the lowest temperature
Decreasing the highest temperature

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Engineering Thermodynamics
A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is

108°C
327°C
54°C
654°C

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

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

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Engineering Thermodynamics
A process, in which the temperature of the working substance remains constant during its expansion or compression, is called

Polytropic process
Hyperbolic process
Adiabatic process
Isothermal process

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Engineering Thermodynamics
One kg of carbon monoxide requires 4/7 kg of oxygen and produces

7/3 kg of carbon monoxide gas
11/7 kg of carbon dioxide gas
8/3 kg of carbon monoxide gas
11/3 kg of carbon dioxide gas

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