Engineering Thermodynamics
The efficiency of a gas turbine is given by

(Net work output)/(Work-done by the turbine)
(Isentropic increase in temperature)/(Actual increase in temperature)
(Actual temperature drop)/(Isentropic temperature drop)
(Net work output)/(Heat supplied)

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Engineering Thermodynamics
The specific heat at constant volume is

The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume
Any one of the above
The amount of heat required to raise the temperature of 1 kg of water through one degree
The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure

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Engineering Thermodynamics
Intensive property of a system is one whose value

Is not dependent on the path followed but on the state
Is dependent on the path followed and not on the state
Depends on the mass of the system, like volume
Does not depend on the mass of the system, like temperature, pressure, etc.

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Engineering Thermodynamics
Which of the following statement is correct according to Clausis statement of second law of thermodynamics?

It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle.
None of these
It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature.

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