Volumetric efficiency of air compressors is of the order of
20 - 30 %
40 - 50 %
60 - 70 %
70 - 90 %
- Work ratio of a gas turbine may be improved by
- The mass of gas turbine per kW developed is about ________ as that of an I.C. engine.
- The overall isothermal efficiency of compressor is defined as the ratio of
- For an irreversible gas turbine cycle, the efficiency and work ratio both depend on
- The intercooler pressure, for minimum work required, for a two stage reciprocating air compressor, is…
- Diffuser in a compressor is used to
- For a two stage compressor, if index of compression for higher stage is greater than index of compression…
- The work ratio of a gas turbine plant is defined as the ratio of
- The ratio of specific weight/h.p. of gas turbine and I.C engines may be typically of the order of
- Rotary compressor is best suited for
- For supplying intermittent small quantity of air at high pressure, following compressor is best suited
- An air compressor may be controlled by
- In a centrifugal compressor, the highest Mach number leading to shock wave in the fluid flow occurs…
- The inlet pressure is always ________ the discharge pressure.
- Stalling of blades in axial flow compressor is the phenomenon of
- Gas turbines for power generation are normally used
- The type of rotary compressor used in aeroplanes, is of
- A rocket works with maximum overall efficiency when air craft velocity is equal to the
- The pressure ratio of an ideal vaned compressor with increase in mass flow rate
- Only rocket engines can be propelled to space because
- The working fluid in a turbine is
- Which is false statement about air receivers?
- The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor…
- The blades of gas turbine are made of
- The weight per horse power ratio for gas in Turbine as compared to I.C. engine and steam turbine is
- Free air is the air at
- The compressor efficiency is the
- Inter-cooling in gas turbine results in
- The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in…
- The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is…