Propulsion efficiency of the following order is obtained in practice
34 %
50 %
60 %
72 %
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- Mechanical efficiency of gas turbines as compared to I.C engines is
- Free air is the air at
- Intercooling in gas turbines
- The ratio of the net work obtained from the gas turbine plant to the turbine work is known as
- For slow speed large capacity compressor, following type of valve will be best suited
- The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before…
- Open cycle gas turbine works on
- An ideal air compressor cycle without clearance on PV diagram can be represented by following processes
- Which of the following plants is smallest and lightest for generating a given amount of power?
- If p₁ is the pressure of air entering the L.P, cylinder and p₃ is the pressure of air…
- Volumetric efficiency of air compressors is of the order of
- A turboprop is preferred to turbojet because
- Compression efficiency is compared against
- The workdone on a compressor will be minimum if air is taken from
- Isothermal compression efficiency can be attained by running the compressor
- Ratio of indicated H.P. and brake H.P. is known as
- Turbofan engine employs
- In multistage compressor, the isothermal compression is achieved by
- Propulsive efficiency is defined as ratio of
- In a single stage, single acting reciprocating air compressor without clearance volume, the workdone…
- The area of actual indicator diagram on an air compressor as compared to area of ideal indicator diagram…
- A closed gas turbine in which fuel is burnt directly in the air is not possible because of
- The pressure of air at the beginning of the compression stroke is ________ the atmospheric pressure.
- An ideal air compressor cycle with clearance on PV diagram can be represented by following processes
- The capacity of a compressor is expressed in
- The compression ratio in a gas turbine is of the order of
- The power available for takeoff and climb in case of turbojet engine as compared to reciprocating engine…
- For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling…
- For an irreversible gas turbine cycle, the efficiency and work ratio both depend on
- To avoid moisture troubles, the branch connections from compressed air lines should be taken from