Compressors, Gas Turbines and Jet Engines The indicated work per unit mass of air delivered is Not affected by clearance volume Inversely proportional to clearance volume Directly proportional to clearance volume Greatly affected by clearance volume Not affected by clearance volume Inversely proportional to clearance volume Directly proportional to clearance volume Greatly affected by clearance volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed gas turbine in which fuel is burnt directly in the air is not possible because of High specific volume Increasing gas temperature Paucity of O2 High friction losses High specific volume Increasing gas temperature Paucity of O2 High friction losses ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is All of these Clearance volume and leakages Superheating in compressor Pressure drop across the valves All of these Clearance volume and leakages Superheating in compressor Pressure drop across the valves ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet propulsion unit, the products of combustion after passing through the gas turbine are discharged into Vacuum Atmosphere Discharge nozzle Back to the compressor Vacuum Atmosphere Discharge nozzle Back to the compressor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from A source at 0° C The atmosphere A source of high temperature air A source of low temperature air A source at 0° C The atmosphere A source of high temperature air A source of low temperature air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of the compressor is defined as the ratio of Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Volume of free air delivery per stroke to the swept volume of the piston Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Isentropic power to the power required to drive the compressor Isothermal power to the shaft power or B.P. of the motor or engine required to drive the compressor Volume of free air delivery per stroke to the swept volume of the piston Work required to compress the air isothermally to the actual work required to compress the air for the same pressure ratio Isentropic power to the power required to drive the compressor ANSWER DOWNLOAD EXAMIANS APP
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