Related Questions

A closed cycle gas turbine gives ________ efficiency as compared to an open cycle gas turbine.
A Same
B Lower
C Higher
D None of these
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is
A Low
B High
C Same
D Low/high depending on make and type
There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would
A Remain same
B Decrease
C Increase
D None of the above
The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio
A Increases
B Decreases
C First increases and then decreases
D First decreases and then increases
Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle
A Heat rejection is lower
B Expansion and compression are isentropic
C Combustion is at constant volume
D Maximum temperature is higher
For an irreversible gas turbine cycle, the efficiency and work ratio both depend on
A Pressure ratio alone
B Maximum cycle temperature alone
C Minimum cycle temperature alone
D Both pressure ratio and maximum cycle temperature
The ratio of the net work obtained from the gas turbine plant to the turbine work is known as
A Compression ratio
B Work ratio
C Pressure ratio
D None of these
The work ratio of simple gas turbine cycle depends on
A Pressure ratio
B Maximum cycle temperature
C Minimum cycle temperature
D All of the above
The work ratio of simple gas turbine cycle depends upon
A Maximum cycle temperature
B Minimum cycle temperature
C Pressure ratio
D All of these
The ideal efficiency of simple gas turbine cycle depends on
A Pressure ratio
B Maximum cycle temperature
C Minimum cycle temperature
D All of the above

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