A. carries its own oxygen
B. uses surrounding air
C. uses compressed atmospheric air
D. does not require oxygen
E. depends on electrical energy supplied by solar cells
Related Mcqs:
- The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of________________?
A. 50%
B. 75%
C. 85%
D. 90%
E. 99% - The jnaximum combustion pressure in gas turbine as compared to I.C. engine is_________________?
A. more
B. less
C. same
D. depends on other factors
E. unpredictable - The power available for take off and climb in case of turbojet engine as compared to reciprocating engine is ___________________?
A. less
B. more
C. same
D. may be less or more depending on ambient conditons
E. unpredictable - In turbo fan engine, the jet velocity as compared to turbo-jet engine is_________________?
A. less
B. more
C. same
D. may be less or more depening upon speed
E. none of the above - 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 - The air entry velocity m a rocket as compared to aircraft is_________________?
A. same
B. more
C. less
D. zero
E. dependent on power and speed - In jet engines the products of combustion after passing through the gas lurbine are discharged into_______________?
A. atmosphere
B. back to the compressor
C. discharge nozzle
D. vacuum
E. none of the above - Fighter bombers use following type of engine __________________?
A. turbo-jet
B. turbo-propeller
C. rocket
D. ram-jet ,
E. pulsojet - The efficiency of jet engine is__________________?
A. higher at ground
B. higher at high altitudes
C. same at all altitudes
D. higher at high speed
E. lower at low speed - Turbofan engine employs ____________________ ?
A. one air stream
B. two or more air streams
C. no air stream
D. solid fuel firing
E. rocket principle for its operation
