A. turbo-jet
B. turbo-propeller
C. rocket
D. ram-jet ,
E. pulsojet
Fighter bombers use following type of engine __________________? Read More »
Compressors, Gas Turbines and Jet Engines A. mild steel
B. stainless steel
C. carbon steel
D. high alloy seel
E. high nicket alloy (neimonic)
The blades of gas turbine are made of_________________? Read More »
Compressors, Gas Turbines and Jet Engines A. same
B. higher
C. lower
D. uncomparable
E. unpredictable
A. collect more air
B. convert kinetic energy of air into pres-sure energy
C. provide robust structure
D. beautify the shape
E. none of the above
A. same
B. more
C. less
D. zero
E. dependent on power and speed
The air entry velocity m a rocket as compared to aircraft is_________________? Read More »
Compressors, Gas Turbines and Jet Engines A. 34%
B. 50%
C. 60%
D. 72%
E. 85%.
Propulsion efficiency of the following order-is obtained in practice _______________? Read More »
Compressors, Gas Turbines and Jet Engines A. 550 km/hr
B. 1050km/hr
C. 1700 km/hr
D. 2400km /hr
E. 4000 km/hr
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. h.p. compressor L connected to h.p. turbine and l.p. compressor ot l.p. tur-bine
B. h.p. compressor is connected to l.p. turbine and l.p. compressor is con-nected to h.p. turbine
C. both the arrangements can be employed
D. all are connected in series
E. none of the above
In the cross compounding of the gas turbine plant__________________? Read More »
Compressors, Gas Turbines and Jet Engines A. thrust power and fuel energy
B. engine output and propulsive power
C. propulsive power and fuel input
D. thrust power and propulsive power
E. none of the above
Propulsive efficiency is defined as ratio of___________________? Read More »
Compressors, Gas Turbines and Jet Engines