Compressors, Gas Dynamics and Gas Turbines Questions

• In axial flow compressor, exit flow angle deviation from the blade angle is a function of
• In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.
• In a reciprocating air compressor, the compression work per kg of air
• The inlet pressure is always __________ the discharge pressure.
• The volumetric efficiency for reciprocating air compressors is about
• Intercooling in compressors results in saving of power in compressing given volume of air to a given pressure.
• The maximum delivery pressure in a rotary air compressor is
• Gas turbine as compared to steam turbine
• Which of the following statement is wrong?
• In the aircraft propellers
• A rotary compressor is driven by an
• The maximum combustion pressure in gas turbine is __________ as compared to I.C. engine.
• The efficiency of a jet engine is higher at
• An open cycle gas turbine works on the same cycle as that of a closed cycle gas turbine.
• The maximum temperature in a gas turbine is
• In a jet propulsion
• An aftercooler is used to
• A closed cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.
• For a two stage reciprocating compressor, compression from p1 to p3 is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p2 is given by
• The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called