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Engineering Thermodynamics

Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

500° to 700°C
700° to 900°C
900° to 1100°C
300° to 500°C

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Engineering Thermodynamics
The efficiency of Diesel cycle depends upon

Compression ratio
Pressure ratio
Cut-off ratio and compression ratio
Temperature limits

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Engineering Thermodynamics
Otto cycle is also known as

Constant temperature cycle
Constant temperature and pressure cycle
Constant pressure cycle
Constant volume cycle

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Engineering Thermodynamics
A perpetual motion machine is

A hypothetical machine whose operation would violate the laws of thermodynamics
A hypothetical machine
A thermodynamic machine
A non-thermodynamic machine

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Engineering Thermodynamics
When the gas is heated at constant pressure, the heat supplied

Increases the internal energy of the gas
Does some external work during expansion
Both (B) and (C)
Increases the temperature of the gas

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Engineering Thermodynamics
When gas is heated at constant pressure, the heat supplied is utilized in

Doing some external work
None of these
Increasing the internal energy of gas and also for doing some external work
Increasing the internal energy of gas

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