Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at Low altitudes High speeds Low speeds High altitudes Low altitudes High speeds Low speeds High altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volume of air sucked by the compressor during its suction stroke is called Compressor capacity None of these Swept volume Free air delivery Compressor capacity None of these Swept volume Free air delivery ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The inter-cooler pressure, for minimum work required, for a two stage reciprocating air compressor, is given by (where p₁ = Intake pressure of air, p₂ = Inter-cooler pressure, and p₃ = Delivery pressure of air) p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ p₂ = p₁/p₃ p₂ = p₁ × p₃ p₂ = p₃/p₁ p₂ = p₁ × p₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature 0.05 0.005 0.001 0.01 0.05 0.005 0.001 0.01 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 turbines has flat efficiency at part loads Gas turbine requires lot of cooling water Gas turbines have high standby losses and require lot of maintenance Gas turbine is capable of rapid start up and loading Gas turbines has flat efficiency at part loads Gas turbine requires lot of cooling water ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is Higher Equal Lower Can't be compared Higher Equal Lower Can't be compared ANSWER DOWNLOAD EXAMIANS APP