In air breathing jet engine, the jet is formed by expanding__________________?

Related Mcqs:

1. 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...

2. Air-fuel ratio in a jet engine will be of the order of__________________?

   A. 10: 1 B. 15: 1 C. 20 : 1 D. 60 : 1 E. 100 :...

3. A jet engine works on the principle of conservation of____________________?

   A. mass B. energy C. flow D. linear momentum E. angular momentum...

4. 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...

5. The compression ratio in a jet engine varies proportional to ____________________?

   A. speed B. speed C. altitude D. Vspeed E. does not Vary...

6. 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...

7. 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...

8. In jet propulsion power unit, the inlet duct of diverging shape is used in order to _______________ ?

   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...

9. Maximum temprature in a gas turbine is of the order of COMPRESSORS, GAS TURBINES AND JET ENGINES______________________?

   A. 2500°C B. 2000°C C. 1500°C D. 1000°C E. 700°C...

10. 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...