Compressors | Gas Turbines and Jet Engines

Work ratio of a gas turbine may be improved by f____________________?

Byadmin January 23, 2019August 15, 2021

Work ratio of a gas turbine may be improved by f____________________?

A. decreasing the compression work
B. increasing the compression work
C. increasing the turbine work
D. decreasing the turbine work
E. A. and C. above

Compressors | Gas Turbines and Jet Engines | Mechanical Engineering Mcqs

Standard air is the air at_____________________?

Standard air is the air at_____________________?

A. atmospheric conditions at any specific location
B. 20°C and 1 kg/cm2 and relative humidity 36%
C. 0°C and standard atmospheric conditions
D. 15°C and 1 kg/cm2
E. 25°C, 1 kg/cm2 and RH of 60%.

Read More Standard air is the air at_____________________?
Compressors | Gas Turbines and Jet Engines

Efficiency of gas turbine is increased by________________ ?

Efficiency of gas turbine is increased by________________ ?

A. reheating
B. inter cooling
C. adding a regenerator
D. all of the above
E. none of the above

Read More Efficiency of gas turbine is increased by________________ ?
Compressors | Gas Turbines and Jet Engines

The ratio of isentropic work to Euler work is known as_____________________?

The ratio of isentropic work to Euler work is known as_____________________?

A. pressure coefficient
B. work coefficient
C. polytropic reaction
D. slip factor
E. compressor efficiency

Read More The ratio of isentropic work to Euler work is known as_____________________?
Compressors | Gas Turbines and Jet Engines

Volumetric efficiency of air compressors is of the order of________________?

Volumetric efficiency of air compressors is of the order of________________?

A. 20-30%
B. 40-50%
C. 60-70%
D. 70-90%
E. 90-100%

Read More Volumetric efficiency of air compressors is of the order of________________?
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in

Question: In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in
[A].

exit nozzle, which is a constant volume process
[B].
exit nozzle, which is essentially an isentropic process
[C].
turbine blades, which is a constant volume process
[D].
turbine blades, which is essentially an isentropic process

Answer: Option D

Explanation:

No answer description available for this question.

Read More In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in
Compressors | Gas Dynamics and Gas Turbines | Mechanical Engineering

An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.

Question: An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.
[A].

Yes
[B].
No

Answer: Option A

Explanation:

No answer description available for this question.

Read More An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.

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