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Engineering Thermodynamics

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

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

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Engineering Thermodynamics
No liquid can exist as liquid at

273°K
Vacuum
Zero pressure
Centre of earth

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Engineering Thermodynamics
The temperature at which the volume of a gas becomes zero is called

None of these
Absolute temperature
Absolute scale of temperature
Absolute zero temperature

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Engineering Thermodynamics
The value of n = 1 in the polytropic process indicates it to be

Isothermal process
Adiabatic process
Irreversible process
Reversible process

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Engineering Thermodynamics
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is

23.97 bar
25 bar
34.81 bar
26.03 bar

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Engineering Thermodynamics
A series of operations, which takes place in a certain order and restore the initial conditions at the end, is known as

None of these
Reversible cycle
Thermodynamic cycle
Irreversible cycle

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