Compressors, Gas Turbines and Jet Engines The work-done on a compressor will be minimum if air is taken from The atmosphere A source at 0° C A source of low temperature air A source of high temperature air The atmosphere A source at 0° C A source of low temperature air A source of high temperature air ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of roots blower ________ with the increase in pressure ratio. None of these Increases Does not change Decreases None of these Increases Does not change Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Producer gas is produced by Passing steam over incandescent coke Carbonisation of coal Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing air and a large amount of steam over waste coal at about 65°C Passing steam over incandescent coke Carbonisation of coal Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing air and a large amount of steam over waste coal at about 65°C ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The pressure ratio of an ideal vaned compressor with increase in mass flow rate Increases First decreases and then increases Remain constant Decreases Increases First decreases and then increases Remain constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor capacity with decrease in suction temperature Remain unaffected Increases May increase or decrease depending on compressor capacity Decreases Remain unaffected Increases May increase or decrease depending on compressor capacity Decreases ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Gas turbines for power generation are normally used 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 To enable start thermal power plant To supply peak load requirements ANSWER DOWNLOAD EXAMIANS APP
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