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Engineering Thermodynamics

Engineering Thermodynamics
The sum of internal energy (U) and the product of pressure and volume (p.v) is known as

Power
Work done
Enthalpy
Entropy

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Engineering Thermodynamics
Which of the following is an irreversible cycle?

Stirling
Ericsson
Carnot
None of these

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Engineering Thermodynamics
If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be

40°C
80°C
20°C
0°C

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Engineering Thermodynamics
The efficiency and work ratio of a simple gas turbine cycle are

High
Very high
Low
Very low

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Engineering Thermodynamics
The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).

More than
Equal to
Less than
None of these

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Engineering Thermodynamics
For same compression ratio and for same heat added

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

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