Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Same at all altitudes Lower at low speed Higher at high altitudes Higher at high speed Same at all altitudes Lower at low speed Higher at high altitudes Higher at high speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reciprocating air compressor is best suited for Large quantity of air at high pressure Small quantity of air at low pressure Large quantity of air at low pressure Small quantity of air at high pressure Large quantity of air at high pressure Small quantity of air at low pressure Large quantity of air at low pressure Small quantity of air at high pressure ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet propulsion The propulsive matter is ejected from within the propelled body None of these Its functioning does not depend upon presence of air The propulsive matter is caused to flow around the propelled body The propulsive matter is ejected from within the propelled body None of these Its functioning does not depend upon presence of air The propulsive matter is caused to flow around the propelled body ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated H.P. and brake H.P. is known as Mechanical efficiency Volumetric efficiency Isothermal efficiency Adiabatic efficiency Mechanical efficiency Volumetric efficiency Isothermal efficiency Adiabatic efficiency 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 Isothermal compression Polytropic compression None of these Isentropic compression Isothermal compression Polytropic compression None of these Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct as regard to centrifugal compressors? 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 The flow of air is parallel to the axis of the compressor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS