Compressors, Gas Turbines and Jet Engines Reheating in a gas turbine Increases the thermal efficiency Increases the turbine work Increases the compressor work Decreases the thermal efficiency Increases the thermal efficiency Increases the turbine work Increases the compressor work Decreases the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Water gas is produced by Carbonisation of coal Partial combustion of coal, eke, 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, eke, 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 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressors are used for delivering Small quantities of air at low pressures Large quantities of air at low pressures Small quantities of air at high pressures Large quantities of air at high pressures Small quantities of air at low pressures Large quantities of air at low pressures Small quantities of air at high pressures Large quantities of air at high pressures ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines After-cooler is used to Reduce volume Cause moisture and oil vapour to drop out Cool the air Decrease the delivery temperature for ease in handling Reduce volume Cause moisture and oil vapour to drop out Cool the air Decrease the delivery temperature for ease in handling ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines What will be the volume of air at 327°C if its volume at 27°C is 1.5 m³/ mt? 3 m³/ mt. 6 m³/ mt. 1.5 m³/ mt. 18 m³/ mt. 3 m³/ mt. 6 m³/ mt. 1.5 m³/ mt. 18 m³/ mt. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If p₁ is the pressure of air entering the L.P, cylinder and p₃ is the pressure of air leaving the H.P. cylinder, then the ratio of cylinder diameters for a single acting, two stage reciprocating compressor with complete intercooling is given by D₁/D₂ = (p₁/p₃)1/4 D₁/D₂ = (p₁ p₃)1/4 D₁/D₂ = (p₁ p₃)1/2 D₁/D₂ = (p₃/p₁)1/4 D₁/D₂ = (p₁/p₃)1/4 D₁/D₂ = (p₁ p₃)1/4 D₁/D₂ = (p₁ p₃)1/2 D₁/D₂ = (p₃/p₁)1/4 ANSWER DOWNLOAD EXAMIANS APP
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