Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of the compressor is defined as the ratio of Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Volume of free air delivery per stroke to the swept volume of the piston Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Isentropic power to the power required to drive the compressor Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Volume of free air delivery per stroke to the swept volume of the piston Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Isentropic power to the power required to drive the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The blades of gas turbine are made of Stainless steel High nickel alloy Carbon steel High alloy steel Stainless steel High nickel alloy Carbon steel High alloy steel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air is delivered ________ in one revolution in case of a three lobbed rotor. Four times Six times Two times Three times Four times Six times Two times Three times ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is Heated Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion Heated Exhaust gases drive the compressor Compressed air before entering the combustion chamber is heated Bled gas from turbine is heated and readmitted for complete expansion ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In multistage compressor, the isothermal compression is achieved by By insulating the cylinder By constantly cooling the cylinder Employing inter-cooler By running compressor at very slow speed By insulating the cylinder By constantly cooling the cylinder Employing inter-cooler By running compressor at very slow speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler work is known as Slip factor Pressure coefficient Polytropic reaction Work coefficient Slip factor Pressure coefficient Polytropic reaction Work coefficient ANSWER DOWNLOAD EXAMIANS APP
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