A. same
B. higher
C. lower
D. uncomparable
E. unpredictable
Correct Answer: lower ✔
Last Updated: January 24, 2019
Related MCQs
- 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__________?
- The fuel consumption in gas turbines is accounted for by__________?
- The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is__________?
- The work ratio of a gas turbine plant is defined as the ratio of__________?
- Rotary compressors are suitable for __________?
- Gas turbine works on__________?
- Gas turbine works on__________?