The thrust of a jet propulsion power unit can be increased by
Injecting water into the compressor
Burning fuel after gas turbine
Injecting ammonia into the combustion chamber
All of the above
- The capacity of a compressor is 5 m /min refers to
- The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor…
- The volumetric efficiency of a compressor
- For a two stage compressor, if index of compression for higher stage is greater than index of compression…
- Pick up the wrong statement
- Volumetric efficiency of air compressors is of the order of
- For minimum work in multistage compression, assuming same index of compression in all stages
- Isothermal compression though most efficient, but is not practicable because
- Axial flow compressor resembles
- The minimum work required for a three stage reciprocating air compressor is ________ the work required…
- In multistage compressor, the isothermal compression is achieved by
- Reheating in multistage expansion gas turbine results in
- Which of the following statement is correct?
- The pressure and temperature conditions of air at the suction of compressor are
- Pick up the wrong statement
- In n₁ and n₂ are the indices of compression for the first and second stage of compression,…
- The ratio of the discharge pressure to the inlet pressure of air is called
- A turboprop is preferred to turbojet because
- In a single stage, single acting reciprocating air compressor, without clearance volume, the workdone…
- Air-fuel ratio in a jet engine will be of the order of
- In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs…
- Ratio of indicated h.p. to shaft h.p. in known as
- To avoid moisture troubles, the branch connections from compressed air lines should be taken from
- Atmospheric pressure is 1.03 kg/cm and vapour pressure is 0.03 kg/cm. The air pressure will be
- Producer gas is produced by
- The work done per unit mass of air in compression will be least when n is equal to
- For supplying intermittent small quantity of air at high pressure, following compressor is best suited
- The efficiency of roots blower ________ with the increase in pressure ratio.
- The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before…
- Open cycle gas turbine works on