Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation 0.1% 5% 1.0% 0.5% 0.1% 5% 1.0% 0.5% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The indicated work per unit mass of air delivered is Directly proportional to clearance volume Inversely proportional to clearance volume Greatly affected by clearance volume Not affected by clearance volume Directly proportional to clearance volume Inversely proportional to clearance volume Greatly affected by clearance volume Not affected by clearance volume ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The mass of gas turbine per kW developed is about ________ as that of an I.C. engine. One sixth Same One fourth One-half One sixth Same One fourth One-half ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Rotary compressors are used for delivering Small quantities of air at low pressures Small quantities of air at high pressures Large quantities of air at low pressures Large quantities of air at high pressures Small quantities of air at low pressures Small quantities of air at high pressures Large quantities of air at low pressures Large quantities of air at high pressures ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For supplying intermittent small quantity of air at high pressure, following compressor is best suited Reciprocating Centrifugal Axial Screw Reciprocating Centrifugal Axial Screw 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) None of these D₁/D₂ = p₁/p₂ D₁/D₂ = p₂/p₁ D₁/D₂ = p₁ p₂ None of these D₁/D₂ = p₁/p₂ D₁/D₂ = p₂/p₁ D₁/D₂ = p₁ p₂ ANSWER DOWNLOAD EXAMIANS APP
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