The maximum propulsion efficiency of a turbojet is attained at around following speed __________________?

Related Mcqs:

The ratio of work doen per cycle to the swept volume in case of compressor is called ______________?

A. compression index B. compression ratio C. compressor efficiency D. mean effective pressure E. compressor effectiveness...

A compressor at high altitude will draw________________?

A. more power B. less power C. same power D. more/less power depending on other factors E. none of the above...

Surging is the phenomenon of___________________?

A. air stream blocking the passage B. motion of air at sonic velocity C. unsteady, periodic and reversed flow D. air stream not able to follow the blade contour E. production of no air pressure...

A rocket works with maximum overall efficiency when air craft velocity is equal to the_________________?

A. jet velocity B. twice the jet velocity C. half the jet velocity D. average of the jet velocity E. no such co-relationship with jet velocity exists...

A simple turbo-jet engine is basically_________________?

A. a propeller system B. gas-turbine engine equipped with a propulsive nozzle and diffuse* C. chemical rocket regine D. ram-jet enigne E. none of the above...