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Engineering Thermodynamics

Engineering Thermodynamics
The atomic mass of nitrogen is __________ oxygen.

None of these
Less than
More than
Equal to

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Engineering Thermodynamics
The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents

Either heat absorbed or heat rejected
Heat rejected
None of the listed here
Heat absorbed

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Engineering Thermodynamics
The work ratio of simple gas turbine cycle depends upon

All of these
Minimum cycle temperature
Maximum cycle temperature
Pressure ratio

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Diesel cycle, Otto cycle, Dual cycle
Otto cycle, Diesel cycle, Dual cycle
Dual cycle, Diesel cycle, Otto cycle
Dual cycle, Otto cycle, Diesel cycle

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Engineering Thermodynamics
If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant

Volume
Temperature
Enthalpy
Pressure

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Engineering Thermodynamics
In closed cycle gas turbine, the air is compressed

Isentropically
None of these
Isothermally
Polytropically

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