Compressors, Gas Turbines and Jet Engines Volumetric efficiency of air compressors is of the order of 40 - 50% 60 - 70% 20 - 30% 70 - 90% 40 - 50% 60 - 70% 20 - 30% 70 - 90% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The net work input required for compressor with increase in clearance volume Increases Decreases Increases/decreases depending on compressor capacity Remains same Increases Decreases Increases/decreases depending on compressor capacity Remains same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall isothermal efficiency of compressor is defined as the ratio of Isothermal h.p. to adiabatic h.p. Power to drive compressor to isothermal h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor Isothermal h.p. to adiabatic h.p. Power to drive compressor to isothermal h.p. Work to compress air isothermally to work for actual compression Isothermal h.p. to the BHP of motor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling. More than Equal to None of these Less than More than Equal to None of these Less than 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 (p₂/p₁) n-1/n 1 - k + k (p₁/p₂)1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁)1/n 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂)1/n 1 - k + k (p₁/p₂) n- 1/n ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor performance at higher altitude compared to sea level will be Same Lower Dependent on other factors Higher Same Lower Dependent on other factors Higher ANSWER DOWNLOAD EXAMIANS APP
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