Isothermal compression efficiency, even when running at high speed, can be approached by using
Multistage compression
Cold water spray
Both (A) and (B) above
Fully insulating the cylinder
- Ratio of indicated h.p. to shaft h.p. in known as
- Which of the following fuels can be used in turbojet engines?
- For slow speed large capacity compressor, following type of valve will be best suited
- Maximum delivery pressure is a rotary air compressor is of the order of
- The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in…
- If the flow of air through the compressor is parallel to its axis, then the compressor is
- In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs…
- Which of the following statement is correct?
- It is not possible to use closed gas turbine cycle in aeronautical engines because
- A rotary compressor is driven by an
- Reheating in a gas turbine
- Pick up the wrong statement about advantages of multistage compression
- In a single acting reciprocating compressor, the suction, compression and delivery of air takes place…
- The temperature of air at the beginning of the compression stroke is ________ the atmospheric temperature.
- A closed cycle gas turbine consists of a
- If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is…
- Producer gas is produced by
- The volumetric efficiency of a compressor
- Reheating in a multistage expansion gas turbine __________ compressor work.
- The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is
- In gas turbines, high thermal efficiency is obtained in
- In which case the air-fuel ratio is likely to be maximum?
- The following property is most important for material used for gas turbine blade
- Which one of the following is the effect of blade shape on performance of a centrifugal compressor?
- The ratio of isentropic work to Euler work is known as
- Turbofan engine employs
- Pick up the false statement
- Adiabatic compression is one in which
- Mining industry usually employs following motive power
- In jet propulsion power unit, the inlet duct of diverging shape is used in order to