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ENGINEERING THERMODYNAMICS

Engineering Thermodynamics
The molecular mass expressed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of

22.4 liters
0.224 liters
224 liters
2.24 liters

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Engineering Thermodynamics
Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle

Expansion and compression are isentropic
Maximum temperature is higher
Combustion is at constant volume
Heat rejection is lower

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Engineering Thermodynamics
Which of the following processes is irreversible process?

Adiabatic
All of these
Isothermal
Throttling

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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

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

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Engineering Thermodynamics
A diathermic wall is one which

Discourages thermal interaction
Prevents thermal interaction
Encourages thermal interaction
Permits thermal interaction

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