Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency, even when running at high speed, can be approached by using Fully insulating the cylinder Multistage compression Both (A) and (B) above Cold water spray Fully insulating the cylinder Multistage compression Both (A) and (B) above Cold water spray ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A rotary compressor is driven by an Engine Electric motor Either (A) or (B) None of these Engine Electric motor Either (A) or (B) None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ramjet engine Is self operating at zero flight speed Is not self operating at zero flight speed Requires no air for its operation Produces a jet consisting of plasma Is self operating at zero flight speed Is not self operating at zero flight speed Requires no air for its operation Produces a jet consisting of plasma ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the aircraft propellers All of these Propulsive matter is ejected from within the propelled body Its functioning does not depend on presence of air The propulsive matter is caused to flow around the propelled body All of these Propulsive matter is ejected from within the propelled body Its functioning does not depend on presence of air The propulsive matter is caused to flow around the propelled body ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity Vt > Vo V = Uo Vi = Vo U < Vo Vt > Vo V = Uo Vi = Vo U < Vo ANSWER DOWNLOAD EXAMIANS APP
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