The pressure ratio in gas turbines is of the order of
2 : 1
4 :1
61 : 1
9 : 1
- The maximum propulsion efficiency of a turbojet is attained at around following speed
- The closed cycle in gas turbines
- The air-fuel ratio in gas turbines is of the order of
- Isothermal compression efficiency, even when running at high speed, can be approached by using
- Separators in compressor installations are located
- For a two stage compressor, if index of compression for higher stage is greater than index of compression…
- Volumetric efficiency of air compressors is of the order of
- The axial flow compressor is preferred in aircraft gas turbines because of
- 1 m of air at atmospheric condition weighs approximately
- The ratio of the net work obtained from the gas turbine plant to the turbine work is known as
- The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric…
- For perfect intercooling in a three stage compressor
- A 3 m³/min compressor means that it
- The thrust of a jet propulsion power unit can be increased by
- In a centrifugal compressor, the flow of air is ________ to the axis of compressor.
- Water is injected in gas turbine cycle to
- In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to
- In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs…
- Euler's equation is applicable for
- The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.
- The efficiency and work ratio of a gas turbine plant can be increased by
- Pick up the wrong statement
- The absolute pressure of air at the outlet of a compressor is called
- The overall efficiency of the compressed air system is the
- The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade…
- In jet engines, for the efficient production of large power, fuel is burnt in an atmosphere of
- A compressor at high altitudes will require ________ power.
- The indicated work per unit mass of air delivered is
- Ramjet engine
- Gas turbine as compared to steam turbine