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Engineering Thermodynamics

Engineering Thermodynamics
The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant)

pv = mRT
pvm = C
pv = (RT)m
pv = RTm

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Engineering Thermodynamics
The efficiency of Diesel cycle approaches to Otto cycle efficiency when

Cut-off is constant
Cut-off is increased
Cut-off is zero
Cut-off is decreased

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Engineering Thermodynamics
Which of the following process can be made reversible with the help of a regenerator?

All of these
Constant volume process
Constant pvn process
Constant pressure process

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Engineering Thermodynamics
Which of the following is not the intensive property?

Heat
Temperature
Pressure
Density

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Engineering Thermodynamics
Change in enthalpy of a system is the heat supplied at

Constant pressure
Constant temperature
Constant entropy
Constant volume

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Engineering Thermodynamics
Petrol is distilled at

65° to 220°C
470° to 550°C
220° to 345°C
345° to 470°C

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