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Engineering Thermodynamics

Engineering Thermodynamics
For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

Less than
Equal to
Greater than
None of these

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Engineering Thermodynamics
When the gas is cooled at constant pressure,

Its temperature increases but volume decreases
Its volume increases but temperature decreases
Both temperature and volume increases
Both temperature and volume decreases

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Engineering Thermodynamics
Work done is zero for the following process

Constant volume
Throttling
All of the listed here
Free expansion

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Engineering Thermodynamics
The unit of mass in S.I. units is

Quintal
Tonne
Gram
Kilogram

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Engineering Thermodynamics
The more effective way of increasing efficiency of Carnot engine is to

Increase higher temperature
Decrease lower temperature
Decrease higher temperature
Increase lower temperature

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Engineering Thermodynamics
The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called

Specific heat at constant pressure
Specific heat at constant volume
Kilo Joule
None of these

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