A. turbo-jet engine
B. ram-jet engine
C. propellers
D. rockets
E. hydraulic jet propulsion
Correct Answer: ram-jet engine ✔
Last Updated: January 24, 2019
Related MCQs
- 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__________?
- 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__________?