Compressors, Gas Turbines and Jet Engines The criterion of the thermodynamic efficiency for rotary compressor is Isothermal compression None of the listed here Polytropic compression Isentropic compression Isothermal compression None of the listed here Polytropic compression Isentropic compression ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake Equal to zero Depending on the velocity Opposite to the direction of motion of blades In the direction of motion of blades Equal to zero Depending on the velocity Opposite to the direction of motion of blades In the direction of motion of blades ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines After-cooler is used to Cause moisture and oil vapour to drop out Reduce volume Decrease the delivery temperature for ease in handling Cool the air Cause moisture and oil vapour to drop out Reduce volume Decrease the delivery temperature for ease in handling Cool the 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) W₁/(W₁ + W₂) W₂/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ W₁/(W₁ + W₂) W₂/(W₁ + W₂) (W₁ + W₂)/W₂ (W₁ + W₂)/W₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Mechanical efficiency of gas turbines as compared to I.C engines is Same Lower None of these Higher Same Lower None of these Higher ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt? 6 m³/ mt. 18 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. 6 m³/ mt. 18 m³/ mt. 1.5 m³/ mt. 3 m³/ mt. ANSWER DOWNLOAD EXAMIANS APP
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