Compressors, Gas Turbines and Jet Engines After-cooler is used to 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 Cause moisture and oil vapour to drop out ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called Pressure ratio Pressure coefficient Degree of reaction Slip factor Pressure ratio Pressure coefficient Degree of reaction Slip factor ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Turbofan engine employs Two or more air streams One air stream Solid fuel firing No air stream Two or more air streams One air stream Solid fuel firing No air stream ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure of air at the beginning of the compression stroke is ___ the atmospheric pressure. Equal to None of the listed here Less than More than Equal to None of the listed here Less than More than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The mass of gas turbine per kW developed is about ________ as that of an I.C. engine. One sixth Same One-half One fourth One sixth Same One-half One fourth ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The overall thermal efficiency of an ideal gas turbine plant is (where r = Pressure ratio) 1 - (1/r) ɣ/ɣ-1 r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 1 - (1/r) ɣ/ɣ-1 r ɣ-1 1 - (1/r) ɣ-1/ɣ 1 - r ɣ-1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS