Compressors, Gas Turbines and Jet Engines The net work input required for compressor with increase in clearance volume Remains same Decreases Increases/decreases depending on compressor capacity Increases Remains same Decreases Increases/decreases depending on compressor capacity Increases 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) (W₁ + W₂)/W₁ W₁/(W₁ + W₂) W₂/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ W₁/(W₁ + W₂) W₂/(W₁ + W₂) (W₁ + W₂)/W₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of jet engine is Lower at low speed Higher at high speed Higher at high altitudes Same at all altitudes Lower at low speed Higher at high speed Higher at high altitudes Same at all altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor efficiency is the Isothermal H.P./shaft H.R Isothermal H.P/indicated H.R Total output/air input Compression work/motor input Isothermal H.P./shaft H.R Isothermal H.P/indicated H.R Total output/air input Compression work/motor input ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum temperature in a gas turbine is 1000°C 700°C 200°C 500°C 1000°C 700°C 200°C 500°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When the outlet angle from the rotor of a centrifugal compressor is more than 90°, then the blades are said to be Forward curved Radial Backward curved None of the listed here Forward curved Radial Backward curved None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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