In jet engines the products of combustion after passing through the gas lurbine are discharged into__________?
If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix i and o stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity__________?
The working fluid in ai turbine is__________?
The compression ratio in a gas turbine is of the roder of__________?
Ram-jet engine__________?
A simple turbo-jet engine is basically__________?
In turbo fan engine, the jet velocity as compared to turbo-jet engine is__________?
Pressure ratio in gas turbines is the ratio of __________?
Which of the following plants is smallest and lightest for genrating a given amount of power__________?
Turbofan engine employs __________ ?
The efficiency and work ratio of a gas turbine plant can be increased by __________?
The compression ratio in a jet engine varies proportional to __________?
For speed above 3000 km/hour, it is more advantageous to use__________?
The efficiency of jet engine is__________?
In air breathing jet engine, the jet is formed by expanding__________?
Maximum temprature in a gas turbine is of the order of COMPRESSORS, GAS TURBINES AND JET ENGINES__________?
Reheating in multistage expansion gas turbine results in__________?
Gas turbine cycle with Regenerator __________?
The main purpose of reheating in gas turbine is to__________?
Work ratio of a gas turbine plant is ratio of__________?
In the aircraft propellers __________?
Work ratio of a gas turbine may be improved by f__________?
Reheating in gas turbine results in__________?
In which case the air-fuel ratio is likely to be maximum __________?
High air-fuel ratio is used in gas turbines__________?
In jet engines the compression ratio__________?
Air-fuel ratio in a jet engine will be of the order of__________?
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__________?

Pick up the false statement ?

A. gas turbine is a self-starting unit
B. gas turbine does not require huge quantity of water like steam plant
C. exhaust losses in gas turbine are high due to large mass flow rate
D. overall efficiency of gas turbine plant is lower than that of a reciprocating engine
E. gas turbine can be easily started and stopped and thus is best suited for peaking demands

Correct Answer: gas turbine is a self-starting unit ✔

Last Updated: January 25, 2019