Compressors, Gas Turbines and Jet Engines The degree of reaction is usually kept ________ for all types of axial flow compressors. 0.3 0.2 0.5 0.4 0.3 0.2 0.5 0.4 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂)1/n 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂)1/n ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Choose the correct statement Gas turbines have high standby losses and require lot of maintenance Gas turbine is capable of rapid start up and loading Gas turbine requires lot of cooling water Gas turbines has flat efficiency at part loads Gas turbines have high standby losses and require lot of maintenance Gas turbine is capable of rapid start up and loading Gas turbine requires lot of cooling water Gas turbines has flat efficiency at part loads ANSWER DOWNLOAD EXAMIANS APP
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 The pressure ratio in gas turbines is of the order of 0.37569444444444 0.084027777777778 2.5423611111111 0.16736111111111 0.37569444444444 0.084027777777778 2.5423611111111 0.16736111111111 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The effective power of gas turbines is increased by adding the following in compressor Carbon dioxide Nitrogen Hydrogen Ammonia and water vapour Carbon dioxide Nitrogen Hydrogen Ammonia and water vapour ANSWER DOWNLOAD EXAMIANS APP
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