A rocket engine for the combustion of its fuel_____________________? - PakMcqs

Related Mcqs:

1. 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%...

2. 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...

3. 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...

4. 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...

5. 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...

6. 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...

7. 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...

8. Fighter bombers use following type of engine __________________?

   A. turbo-jet B. turbo-propeller C. rocket D. ram-jet , E. pulsojet...

9. 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...

10. 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...