Compressors, Gas Turbines and Jet Engines The maximum propulsion efficiency of a turbojet is attained at around following speed 550 km/hr 1700 km/hr 2400 km/hr 1050 km/hr 550 km/hr 1700 km/hr 2400 km/hr 1050 km/hr ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Losses in a centrifugal compressor are due to Impeller channel losses All of the listed here Inlet losses Diffuser losses Impeller channel losses All of the listed here Inlet losses Diffuser losses ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For maximum work, the reheating should be done to an intermediate pressure of (Where p₁ = Maximum pressure, and p₂ = Minimum pressure) (p₁ + p₂)/2 p₁ p₂ p₁/p₂ (p₁ - p₂)/2 (p₁ + p₂)/2 p₁ p₂ p₁/p₂ (p₁ - p₂)/2 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Maximum delivery pressure is a rotary air compressor is of the order of 6 kg/cm² 16 kg/cm² 25 kg/cm² 10 kg/cm² 6 kg/cm² 16 kg/cm² 25 kg/cm² 10 kg/cm² ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Larger air handling ability per unit frontal area Higher average velocities Aerofoil blades are used Higher pressure ratio per stage Larger air handling ability per unit frontal area Higher average velocities Aerofoil blades are used Higher pressure ratio per stage ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In which case the air-fuel ratio is likely to be maximum? Multi cylinder engine 4-stroke diesel engine 4-stroke petrol engine Gas turbine Multi cylinder engine 4-stroke diesel engine 4-stroke petrol engine Gas turbine ANSWER DOWNLOAD EXAMIANS APP
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