Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Increase of work ratio Both (A) and (B) above Decrease of thermal efficiency Decrease of work ratio Increase of work ratio Both (A) and (B) above Decrease of thermal efficiency Decrease of work ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of outlet whirl velocity to blade velocity in case of centrifugal compressor is called Slip factor Velocity factor None of these Velocity coefficient Slip factor Velocity factor None of these Velocity coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The material commonly used for air craft gas turbine is Timken, Haste alloys High alloy steel Duralumin Stainless steel Timken, Haste alloys High alloy steel Duralumin Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the correct statement Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip Gas turbines have their blades similar to steam turbine Gas turbines use both air and liquid cooling Large gas turbines use radial inflow turbines Gas turbine's blade will appear as impulse section at the hub and as a reaction section at tip Gas turbines have their blades similar to steam turbine Gas turbines use both air and liquid cooling Large gas turbines use radial inflow turbines ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 0.85 0.99 0.9 0.75 0.85 0.99 0.9 0.75 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressors are used for delivering Small quantities of air at low pressures Large quantities of air at low pressures Large quantities of air at high pressures Small quantities of air at high pressures Small quantities of air at low pressures Large quantities of air at low pressures Large quantities of air at high pressures Small quantities of air at high pressures ANSWER DOWNLOAD EXAMIANS APP
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