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Compressors, Gas Turbines and Jet Engines
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Air-fuel ratio in a jet engine will be of the order of__________________?
Related MCQs
The effective power of gas turbines is increased by adding the following in compressor__________?
The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turine and fixed higher and lower temperature) with increase in pressure ratio will__________?
The following property is most important for material used for gas turbine blade__________?
Fighter bombers use following type of engine __________?
The blades of gas turbine are made of__________?
The weight per horse power ratio for gas. turbine as compared to I.C. engine and steam turbine is__________?
In jet propulsion power unit, the inlet duct of diverging shape is used in order to __________ ?
The air entry velocity m a rocket as compared to aircraft is__________?
Propulsion efficiency of the following order-is obtained in practice __________?
The maximum propulsion efficiency of a turbojet is attained at around following speed __________?
A rocket works with maximum overall efficiency when air craft velocity is equal to the__________?
In the cross compounding of the gas turbine plant__________?
Propulsive efficiency is defined as ratio of__________?
A rocket engine for the combustion of its fuel__________?
Which of the following fuels can be used in turbojet engines __________?
A jet engine works on the principle of conservation of__________?
Ram compression in turbojet involves__________?
The power available for take off and climb in case of turbojet engine as compared to reciprocating engine is __________?
Intercooling in gas turbine results in __________ ?
If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches __________?
In jet engines, paraffin is usually used as the fuel because of its __________?
Turbo propeller has the following additional feature over the turbojet __________?
In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of__________?
In gas turbines^ high thermal efficiency is obtained in__________?
A closed gas turbine in which fuel is burnt directly in the air is not possible because of__________?
In the axial flow gas turbine, the work ratio is the ratio of__________?
Water is injected in gas turbine cycle to__________?
The closed cycle in gas turbines__________?
The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the__________?
A gas turbine used in air craft should have__________?
Producer gas is produced by__________?
For an irreversible gas turbine cycle, the efficiency and work ratio both depend on__________?
It is not possible to use closed gas turbine cycle in aeronautical engines because__________ ?
As the turbine inlet temperature increases, the thermal efficiency of gas turbine for the optimum pressure ratio__________?
The jnaximum combustion pressure in gas turbine as compared to I.C. engine is__________?
The material commonly used for air craft gas turbine is__________?
The ideal efficiency of simple gas turbine cycle depends on__________?
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__________?
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of__________?
Water gas is produced by __________ ?
The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio__________?
The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is__________?
Efficiency of gas turbine is increased by__________ ?
The hottest point in a gas turbine is__________?
Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is__________?
The pressure ratio in gas turbines is of the order of__________?
The ratio of specific weighf/h.p. of gas turbin and I.C engines may be typically of the order of__________?
The thermal efficiency of a gas turbine as compared to a diesel plant is__________?
Gas turbine blades are given a rake__________?
The air-fuel ratio in gas turbines is of the order of __________?
Mechanical efficiency of gas turbines as compared to I.C engines is__________?
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 :
Correct Answer:
60 : 1
✔
Last Updated:
January 24, 2019