Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? The flow of air is parallel to the axis of the compressor The impeller rotates at high speeds The static pressure of air in the impeller increases in order to provide centripetal force on the air The maximum efficiency is higher than multistage axial flow compressors The flow of air is parallel to the axis of the compressor The impeller rotates at high speeds The static pressure of air in the impeller increases in order to provide centripetal force on the air The maximum efficiency is higher than multistage axial flow compressors ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For perfect intercooling in a two stage compressor p₁ = p₂ p3 p₂/p₁ = p₃/p₂ p₁/p₃ = p₂/p₁ p₁ = p3 p₁ = p₂ p3 p₂/p₁ = p₃/p₂ p₁/p₃ = p₂/p₁ p₁ = p3 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Air-fuel ratio in a jet engine will be of the order of 0.41736111111111 2.5006944444444 0.62569444444444 0.83402777777778 0.41736111111111 2.5006944444444 0.62569444444444 0.83402777777778 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)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 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂) n- 1/n ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the axial flow gas turbine, the work ratio is the ratio of Actual compressor work and theoretical compressor work Output and input Compressor work and turbine work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Actual compressor work and theoretical compressor work Output and input Compressor work and turbine work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air power of the compressor is also known as Indicated power Brake power Frictional power None of these Indicated power Brake power Frictional power None of these ANSWER DOWNLOAD EXAMIANS APP
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