Compressors, Gas Turbines and Jet Engines Ramjet engine 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 Is self operating at zero flight speed Is not self operating at zero flight speed ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbine blades are given a rake Depending on the velocity In the direction of motion of blades Equal to zero Opposite to the direction of motion of blades Depending on the velocity In the direction of motion of blades Equal to zero Opposite to the direction of motion of blades ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The reason for volumetric efficiency of reciprocating compressor being less than 100 percent is Superheating in compressor All of these Pressure drop across the valves Clearance volume and leakages Superheating in compressor All of these Pressure drop across the valves Clearance volume and leakages ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following statement is correct relating to rocket engines? All of these The stagnation conditions exist at the combustion chamber The exit velocities of exhaust gases are much higher than those in jet engine The combustion chamber in a rocket engine is directly analogous to the reservoir of a supersonic wind tunnel All of these The stagnation conditions exist at the combustion chamber The exit velocities of exhaust gases are much higher than those in jet engine The combustion chamber in a rocket engine is directly analogous to the reservoir of a supersonic wind tunnel ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of the discharge pressure to the inlet pressure of air is called Volumetric efficiency Compression ratio Compressor efficiency Expansion ratio Volumetric efficiency Compression ratio Compressor efficiency Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The performance of air compressor at high altitudes will be ________ as compared to that at sea level. None of these Lower Same Higher None of these Lower Same Higher ANSWER DOWNLOAD EXAMIANS APP
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