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

Correct Answer: Both pressure ratio and maximum cycle temperature

For an irreversible gas turbine cycle, the efficiency and work ratio both depend on Both pressure ratio and maximum cycle temperature
Bissoy MCQ
#Mechanical Engineering #Compressors #Gas Turbines And Jet Engines

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
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
The efficiency and work ratio of a simple gas turbine cycle are
A Very low
B Low
C High
D Very high
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 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
As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio
A Increases
B Decreases
C Remain same
D First increases and then decreases
When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
A Zero
B $$\frac{1}{5}$$
C $$\frac{4}{5}$$
D 1
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency
A $$\frac{1}{4}$$
B Zero
C $$\frac{1}{5}$$
D 2

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