Compressors, Gas Turbines and Jet Engines In a compressor, free air delivered is the actual volume delivered at the stated pressure reduced to N.T.P. conditions 20°C and 1 kg/cm² 0°C and 1 kg/cm² Intake temperature and pressure conditions N.T.P. conditions 20°C and 1 kg/cm² 0°C and 1 kg/cm² Intake temperature and pressure conditions ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines More than one stage will be preferred for reciprocating compressor if the delivery pressure is more than 6 kg/cm² 10 kg/cm² 14.7 kg/cm² 2 kg/cm² 6 kg/cm² 10 kg/cm² 14.7 kg/cm² 2 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake Depending on the velocity Equal to zero Opposite to the direction of motion of blades In the direction of motion of blades Depending on the velocity Equal to zero Opposite to the direction of motion of blades In the direction of motion of blades ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of the compressor is defined as the ratio of 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 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which is false statement about advantages of multistage compressor in comparison to single stage compressor? Better mechanical balance Lower volumetric efficiency Less loss of air due to leakage past the cylinder Less power requirement Better mechanical balance Lower volumetric efficiency Less loss of air due to leakage past the cylinder Less power requirement ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volume of air delivered in a medium capacity air compressor per unit time is Above 5 m³/s None of these 0.1 to 1.2 m³/s 0.15 to 5 m³/s Above 5 m³/s None of these 0.1 to 1.2 m³/s 0.15 to 5 m³/s ANSWER DOWNLOAD EXAMIANS APP
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