Compressors, Gas Turbines and Jet Engines After-cooler is used to Cause moisture and oil vapour to drop out Cool the air Reduce volume Decrease the delivery temperature for ease in handling Cause moisture and oil vapour to drop out Cool the air Reduce volume Decrease the delivery temperature for ease in handling ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a single stage, single acting reciprocating air compressor, without clearance volume, the work-done is minimum during Polytropic compression None of these Isothermal compression Isentropic compression Polytropic compression None of these Isothermal compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mechanical efficiency of gas turbines as compared to I.C engines is None of these Lower Same Higher None of these Lower Same Higher ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The material commonly used for air craft gas turbine is Timken, Haste alloys Stainless steel High alloy steel Duralumin Timken, Haste alloys Stainless steel High alloy steel Duralumin ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Same at all altitudes Higher at high altitudes Higher at high speed Lower at low speed Same at all altitudes Higher at high altitudes Higher at high speed Lower at low speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Convert pressure energy into kinetic energy Make the flow streamline Increase velocity Convert kinetic energy into pressure energy Convert pressure energy into kinetic energy Make the flow streamline Increase velocity Convert kinetic energy into pressure energy ANSWER DOWNLOAD EXAMIANS APP
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