Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an None of these Electric motor Either (A) or (B) Engine None of these Electric motor Either (A) or (B) Engine 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 Polytropic compression Isothermal compression None of these Isentropic compression Polytropic compression Isothermal compression None of these Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rocket engine uses __________ for the combustion of its fuel. Compressed atmospheric air Its own oxygen None of these Surrounding air Compressed atmospheric air Its own oxygen None of these Surrounding air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of the vane blower is (where W₁ = Workdone due to compression, and W₂ = Workdone due to back flow) W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₁ (W₁ + W₂)/W₂ W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₁ (W₁ + W₂)/W₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines An ideal air compressor cycle without clearance on P-V diagram can be represented by following processes Two adiabatic, one isobaric and one constant volume One adiabatic, two isobaric, and one constant volume One adiabatic, one isobaric and two constant volumes Two adiabatic and two isobaric Two adiabatic, one isobaric and one constant volume One adiabatic, two isobaric, and one constant volume One adiabatic, one isobaric and two constant volumes Two adiabatic and two isobaric ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine cycle with regenerator Allows operation at very high altitudes Increases thermal efficiency Decreases heat loss is exhaust Allows high compression ratio Allows operation at very high altitudes Increases thermal efficiency Decreases heat loss is exhaust Allows high compression ratio ANSWER DOWNLOAD EXAMIANS APP
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