Compressors, Gas Turbines and Jet Engines The velocity of air entering in a rocket is ___ as compared to an aircraft. Less Zero Same More Less Zero Same More ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have High speed and high h.p. Low weight and small frontal area High h.p. and low weight Small frontal area and high h.p. High speed and high h.p. Low weight and small frontal area High h.p. and low weight Small frontal area and high h.p. ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For a two stage reciprocating compressor, compression from p₁ to p₃ is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p₂ is given by p₂ = p₁. p₃ p₂ = Pa p₃/p₁ p₂ = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ p₂ = p₁. p₃ p₂ = Pa p₃/p₁ p₂ = (p₁ + p₃)/2 P₂ = Pa × p₃/p₁ ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In jet engines, paraffin is usually used as the fuel because of its Low freezing point High calorific value Both (A) and (C) above Ease of atomisation Low freezing point High calorific value Both (A) and (C) above Ease of atomisation ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In the cross compounding of the gas turbine plant H.P. compressor is connected to L.P. turbine and L.P. compressor is connected to H.P. turbine Both the arrangements can be employed H.P. compressor is connected to H.P. turbine and L.P. compressor to L.P. turbine All are connected in series H.P. compressor is connected to L.P. turbine and L.P. compressor is connected to H.P. turbine Both the arrangements can be employed H.P. compressor is connected to H.P. turbine and L.P. compressor to L.P. turbine All are connected in series ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of work done per cycle to the swept volume in case of compressor is called Compression index Mean effective pressure Compression ratio Compressor efficiency Compression index Mean effective pressure Compression ratio Compressor efficiency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS