A. gases
B. solids
C. liquid
D. plasma
E. highly heated atmospheric air
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 - 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 : - A jet engine works on the principle of conservation of____________________?
A. mass
B. energy
C. flow
D. linear momentum
E. angular momentum - 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 - 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 - 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 - 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 - 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
