Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Increases power output Improves thermal efficiency Reduces exhaust temperature Do not damage turbine blades Increases power output Improves thermal efficiency Reduces exhaust temperature Do not damage turbine blades ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Isothermal compression efficiency, even when running at high speed, can be approached by using Multistage compression Both (A) and (B) above Cold water spray Fully insulating the cylinder Multistage compression Both (A) and (B) above Cold water spray Fully insulating the cylinder ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compression ratio for the compressor is always _________ unity. Less than Equal to None of these More than Less than Equal to None of these More than ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbines for power generation are normally used To enable start thermal power plant To supply peak load requirements In emergency To supply base load requirements To enable start thermal power plant To supply peak load requirements In emergency To supply base load requirements ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have Small frontal area and high h.p. High h.p. and low weight Low weight and small frontal area High speed and high h.p. Small frontal area and high h.p. High h.p. and low weight Low weight and small frontal area High speed and high h.p. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Lost work Increasing speed of incoming air Compression of inlet air Reduction of speed of incoming air and conversion of part of it into pressure energy Lost work Increasing speed of incoming air Compression of inlet air Reduction of speed of incoming air and conversion of part of it into pressure energy ANSWER DOWNLOAD EXAMIANS APP
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