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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

224 liters
0.224 liters
2.24 liters
22.4 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

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

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Engineering Thermodynamics
Which of the following processes is irreversible process?

Adiabatic
Isothermal
Throttling
All of these

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

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Engineering Thermodynamics
A diathermic wall is one which

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

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