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 Carbonisation of coal Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast Passing steam over incandescent coke Passing air and a large amount of steam over waste coal at about 65°C Carbonisation of coal 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 In which case the air-fuel ratio is likely to be maximum? Gas turbine 4-stroke petrol engine Multi cylinder engine 4-stroke diesel engine Gas turbine 4-stroke petrol engine Multi cylinder engine 4-stroke diesel engine ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines High air-fuel ratio in gas turbines Increases power output Improves thermal efficiency Do not damage turbine blades Reduces exhaust temperature Increases power output Improves thermal efficiency Do not damage turbine blades Reduces exhaust temperature ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ram compression in turbojet involves Compression of inlet air Increasing speed of incoming air Lost work Reduction of speed of incoming air and conversion of part of it into pressure energy Compression of inlet air Increasing speed of incoming air Lost work Reduction of speed of incoming air and conversion of part of it into pressure energy ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The stagnation pressure rise in a centrifugal compressor takes place In the diffuser only In the impeller only In the inlet guide vanes only In the diffuser and impeller In the diffuser only In the impeller only In the inlet guide vanes only In the diffuser and impeller ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Volumetric efficiency is The ratio of stroke volume to clearance volume The ratio of the air actually delivered to the amount of piston displacement Reciprocal of compression ratio Index of compressor performance The ratio of stroke volume to clearance volume The ratio of the air actually delivered to the amount of piston displacement Reciprocal of compression ratio Index of compressor performance ANSWER DOWNLOAD EXAMIANS APP
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