Fighter bombers use following type of engine __________________?
Fighter bombers use following type of engine __________________? A. turbo-jet B. turbo-propeller C. rocket D. ram-jet , E. pulsojet
Fighter bombers use following type of engine __________________? A. turbo-jet B. turbo-propeller C. rocket D. ram-jet , E. pulsojet
The blades of gas turbine are made of_________________? A. mild steel B. stainless steel C. carbon steel D. high alloy seelE. high nicket alloy (neimonic)
The weight per horse power ratio for gas. turbine as compared to I.C. engine and steam turbine is________________? A. same B. higherC. lower D. uncomparable E. unpredictable
In jet propulsion power unit, the inlet duct of diverging shape is used in order to _______________ ? A. collect more airB. convert kinetic energy of air into pres-sure energy C. provide robust structure D. beautify the shape E. none…
The air entry velocity m a rocket as compared to aircraft is_________________? A. same B. more C. lessD. zero E. dependent on power and speed
Propulsion efficiency of the following order-is obtained in practice _______________? A. 34% B. 50%C. 60% D. 72% E. 85%.
The maximum propulsion efficiency of a turbojet is attained at around following speed __________________? A. 550 km/hr B. 1050km/hr C. 1700 km/hrD. 2400km /hr E. 4000 km/hr
A rocket works with maximum overall efficiency when air craft velocity is equal to the_________________? A. jet velocity B. twice the jet velocityC. half the jet velocity D. average of the jet velocity E. no such co-relationship with jet velocity…
In the cross compounding of the gas turbine plant__________________? A. h.p. compressor L connected to h.p. turbine and l.p. compressor ot l.p. tur-bineB. h.p. compressor is connected to l.p. turbine and l.p. compressor is con-nected to h.p. turbine C. both…
Propulsive efficiency is defined as ratio of___________________? A. thrust power and fuel energy B. engine output and propulsive power C. propulsive power and fuel inputD. thrust power and propulsive power E. none of the above