Compressors, Gas Turbines and Jet Engines The effective power of gas turbines is increased by adding the following in compressor Hydrogen Carbon dioxide Ammonia and water vapour Nitrogen Hydrogen Carbon dioxide Ammonia and water vapour Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the None of these Efficiency of the engine Both (A) and (B) Thrust and range of aircraft None of these Efficiency of the engine Both (A) and (B) Thrust and range of aircraft ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The assumption made in two stage compression with inter-cooler is that There is no pressure drop in the inter-cooler The suction and delivery of air takes place at constant pressure All of the listed here The compression in both the cylinders is polytropic There is no pressure drop in the inter-cooler The suction and delivery of air takes place at constant pressure All of the listed here The compression in both the cylinders is polytropic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Producer gas is produced by 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 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 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D₁ = Dia. of L.P. cylinder, and D₂ = Dia. of H.P. cylinder) D₁/D₂ = p₂/p₁ D₁/D₂ = p₁ p₂ None of these D₁/D₂ = p₁/p₂ D₁/D₂ = p₂/p₁ D₁/D₂ = p₁ p₂ None of these D₁/D₂ = p₁/p₂ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Diffuser in a compressor is used to Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy Increase velocity Convert pressure energy into kinetic energy Make the flow streamline Convert kinetic energy into pressure energy ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS