Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at Low altitudes Low speeds High altitudes High speeds Low altitudes Low speeds High altitudes High speeds ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the aircraft propellers Its functioning does not depend on presence of air All of these The propulsive matter is caused to flow around the propelled body Propulsive matter is ejected from within the propelled body Its functioning does not depend on presence of air All of these The propulsive matter is caused to flow around the propelled body Propulsive matter is ejected from within the propelled body ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A closed cycle gas turbine gives ________ efficiency as compared to an open cycle gas turbine. Lower None of these Higher Same Lower None of these Higher Same ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The following property is most important for material used for gas turbine blade Corrosion resistance Creep Toughness Fatigue Corrosion resistance Creep Toughness Fatigue ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Increased Reduced Zero None of these Increased Reduced Zero None of these 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
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