Compressors, Gas Turbines and Jet Engines The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as Volumetric efficiency Compressor efficiency Isothermal efficiency Mechanical efficiency Volumetric efficiency Compressor efficiency Isothermal efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines After-cooler is used to Cause moisture and oil vapour to drop out Decrease the delivery temperature for ease in handling Cool the air Reduce volume Cause moisture and oil vapour to drop out Decrease the delivery temperature for ease in handling Cool the air Reduce volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The indicated work per unit mass of air delivered is Greatly affected by clearance volume Directly proportional to clearance volume Not affected by clearance volume Inversely proportional to clearance volume Greatly affected by clearance volume Directly proportional to clearance volume Not affected by clearance volume Inversely proportional to clearance volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For slow speed large capacity compressor, following type of valve will be best suited Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Disc or feather type Any of the above Poppet valve Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Disc or feather type Any of the above Poppet valve ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Water is injected in gas turbine cycle to Control temperature Control fire hazards Control output of turbine Increase efficiency Control temperature Control fire hazards Control output of turbine Increase efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Improves thermal efficiency Do not damage turbine blades Reduces exhaust temperature Increases power output Improves thermal efficiency Do not damage turbine blades Reduces exhaust temperature Increases power output ANSWER DOWNLOAD EXAMIANS APP
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