Compressors, Gas Turbines and Jet Engines The efficiency of roots blower ________ with the increase in pressure ratio. Increases Decreases None of these Does not change Increases Decreases None of these Does not change ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Turbofan engine employs Solid fuel firing One air stream Two or more air streams No air stream Solid fuel firing One air stream Two or more air streams No air stream ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Pick up the wrong statement about advantages of multistage compression Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Air can be cooled perfectly in between Mechanical balance is better Better lubrication is possible advantages of multistage More loss of air due to leakage past the cylinder Air can be cooled perfectly in between Mechanical balance is better 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 (p₁ + p₂)/2 p₁/p₂ (p₁ - p₂)/2 p₁ p₂ (p₁ + p₂)/2 p₁/p₂ (p₁ - p₂)/2 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy Increase velocity ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The material commonly used for air craft gas turbine is Duralumin Timken, Haste alloys High alloy steel Stainless steel Duralumin Timken, Haste alloys High alloy steel Stainless steel ANSWER DOWNLOAD EXAMIANS APP
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