Compressors, Gas Turbines and Jet Engines The process, which causes the air to enter the impeller blades of a centrifugal compressor at ________ velocity (without effecting the mass of air to flow and velocity of flow) is known as prewhirl. Reduced Zero Increased None of these Reduced Zero Increased None of these ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Producer gas is produced by Carbonisation of coal Passing air and a large amount of steam over waste coal at about 65°C Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing steam over incandescent coke Carbonisation of coal Passing air and a large amount of steam over waste coal at about 65°C Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing steam over incandescent coke ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches Isothermal Adiabatic Isochoric Isentropic Isothermal Adiabatic Isochoric Isentropic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressors are used for delivering Small quantities of air at high pressures Small quantities of air at low pressures Large quantities of air at high pressures Large quantities of air at low pressures Small quantities of air at high pressures Small quantities of air at low pressures Large quantities of air at high pressures Large quantities of air at low pressures 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 The air is delivered ________ in one revolution in case of a three lobbed rotor. Three times Four times Two times Six times Three times Four times Two times Six times ANSWER DOWNLOAD EXAMIANS APP
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