A. high calorific value
B. ease of atomisation
C. low freezing point
D. A. and C. above
E. none of the above
Related Mcqs:
- In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of__________________?
A. vacuum
B. atmospheric air
C. compressed air
D. oxygen alone
E. liquid hydrogen - In jet engines the compression ratio__________________?
A. varies as square root of the speed
B. Varies linearly to the speed
C. varies as square of the speed
D. varies as cube of the speed
E. is constant irrespective of variation in 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 - In air breathing jet engine, the jet is formed by expanding__________________?
A. gases
B. solids
C. liquid
D. plasma
E. highly heated atmospheric air - 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 : - In which case the air-fuel ratio is likely to be maximum _________________?
A. 2-stroke engine
B. 4-stroke petrol engine
C. 4-stroke diesef engine
D. multi-cylinder engine
E. gas turbine - Mechanical efficiency of gas turbines as compared to I.C engines is____________________?
A. higher
B. lower
C. same
D. depends on on odier considerations
E. unpredictable - The ratio of specific weighf/h.p. of gas turbin and I.C engines may be typically of the order of_______________________?
A. 1 : 1
B. 2 : 1
C. 4 : 1
D. 1:2
E. 1 : 6 - Which of the following fuels can be used in turbojet engines _____________________?
A. liquid hydrogne
B. high speed diesel oil
C. kerosene
D. demethylated spirit
E. methyl alcohol
