A. higher at ground
B. higher at high altitudes
C. same at all altitudes
D. higher at high speed
E. lower at low speed
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Related Mcqs:
- 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...
- In air breathing jet engine, the jet is formed by expanding__________________?
- A. gases B. solids C. liquid D. plasma E. highly heated atmospheric air...
- A jet engine works on the principle of conservation of____________________?
- A. mass B. energy C. flow D. linear momentum E. angular momentum...
- 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 :...
- The compression ratio in a jet engine varies proportional to ____________________?
- A. speed B. speed C. altitude D. Vspeed E. does not Vary...
- 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...
- 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...
- There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would__________________?
- A. remain same B. decrease C. increase D. unpredictable E. none of the above...
- The thermal efficiency of a gas turbine as compared to a diesel plant is__________________?
- A. same B. more C. less D. depends on other factors E. unpredictably...
- 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...
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