Compressors, Gas Turbines and Jet Engines The air is delivered ________ in one revolution in case of a three lobbed rotor. Four times Six times Two times Three times Four times Six times Two times Three times ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines After-cooler is used to Decrease the delivery temperature for ease in handling Cool the air Reduce volume Cause moisture and oil vapour to drop out Decrease the delivery temperature for ease in handling Cool the air Reduce volume Cause moisture and oil vapour to drop out ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Producer gas is produced by 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 Carbonisation of coal Passing steam over incandescent coke 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 Carbonisation of coal Passing steam over incandescent coke ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines With the decrease in compression ratio, the volumetric efficiency Does not change Decreases Increases First decrease and then increase Does not change Decreases Increases First decrease and then increase ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The specific output per kg mass flow rate of a gas turbine (having fixed efficiencies of compressor and turbine and fixed higher and lower temperature) with increase in pressure ratio will First increase, reach maximum and then decrease Increase first at slow rate and then fast Decrease continuously Increase first at fast rate and then slow First increase, reach maximum and then decrease Increase first at slow rate and then fast Decrease continuously Increase first at fast rate and then slow ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines During peak load periods, the best method of controlling compressors is Constant speed unloader Start-stop motor Relief valve Variable speed Constant speed unloader Start-stop motor Relief valve Variable speed ANSWER DOWNLOAD EXAMIANS APP
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