Compressors, Gas Turbines and Jet Engines An after-cooler is used to Cool the air Cause moisture and oil vapour to drop out Remove impurities from air Reduce volume of air Cool the air Cause moisture and oil vapour to drop out Remove impurities from air Reduce volume of air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Isentropic compression Isothermal compression Polytropic compression None of the listed here Isentropic compression Isothermal compression Polytropic compression None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines When air is to be compressed at a high pressure, then it is advantageous to use Multistage compression without intercooling Multistage compression with intercooling Single stage compression None of these Multistage compression without intercooling Multistage compression with intercooling Single stage compression None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a reciprocating air compressor, the compression work per kg of air Decreases as clearance volume increases Increases as clearance volume decreases Is independent of clearance volume Increases as clearance volume increases Decreases as clearance volume increases Increases as clearance volume decreases Is independent of clearance volume Increases as clearance volume increases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum compression ratio in an actual single stage axial flow compressor is of the order of 0.00070833333333333 0.048611111111111 0.043055555555556 0.045138888888889 0.00070833333333333 0.048611111111111 0.043055555555556 0.045138888888889 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 + W₂)/W₂ W₂/(W₁ + W₂) W₁/(W₁ + W₂) (W₁ + W₂)/W₁ (W₁ + W₂)/W₂ W₂/(W₁ + W₂) W₁/(W₁ + W₂) ANSWER DOWNLOAD EXAMIANS APP
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