The volumetric efficiency for reciprocating air compressors is about
10 to 40 %
40 to 60 %
60 to 70 %
70 to 90 %
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- Clearance volume in actual reciprocating compressors is essential
- The compression ratio for the compressor is always __________ unity.
- The indicated work per unit mass of air delivered is
- In a closed cycle gas turbine, the air is compressed
- Gas turbine as compared to steam turbine
- Fighter bombers use following type of engine
- Which of the following statement is wrong?
- High air-fuel ratio is used in gas turbines
- The thrust of a jet propulsion power unit can be increased by
- Rotary compressor is best suited for
- Phenomenon of choking in compressor means
- With the decrease in compression ratio, the volumetric efficiency
- A jet engine works on the principle of conservation of
- The efficiency of jet engine is
- The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in…
- For supplying intermittent small quantity of air at high pressure, following compressor is best suited
- The thermodynamic efficiency of rotary compressor is based on
- For minimum work in multistage compression, assuming same index of compression in all stages
- The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is
- The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio)
- In multistage compressor, the isothermal compression is achieved by
- Axial flow compressor resembles
- Pick up the wrong statement
- In a single stage, single acting reciprocating air compressor without clearance volume, the workdone…
- In a centrifugal compressor, the ratio of the ________ to the blade velocity is called slip factor.
- The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known…
- A rocket engine uses ________ for the combustion of its fuel.
- For speed above 3000 km/hour, it is more advantageous to use
- In a single acting reciprocating air compressor, without clearance, the compression of air may be
- For perfect intercooling in a two stage compressor