Compressors, Gas Turbines and Jet Engines In jet propulsion power unit, the inlet duct of diverging shape is used in order to Collect more air Convert kinetic energy of air into pressure energy Provide robust structure Beautify the shape Collect more air Convert kinetic energy of air into pressure energy Provide robust structure Beautify the shape ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Which of the following fuels can be used in turbojet engines? High speed diesel oil Kerosene Liquid hydrogen Methyl alcohol High speed diesel oil Kerosene Liquid hydrogen Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In multistage compressor, the isothermal compression is achieved by By running compressor at very slow speed By constantly cooling the cylinder By insulating the cylinder Employing inter-cooler By running compressor at very slow speed By constantly cooling the cylinder By insulating the cylinder Employing inter-cooler ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines For slow speed large capacity compressor, following type of valve will be best suited Poppet valve Disc or feather type Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Any of the above Poppet valve Disc or feather type Mechanical valve of the Corliss, sleeve, rotary or semi rotary type Any of the above 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
Compressors, Gas Turbines and Jet Engines The ratio of the increase in pressure in rotor blades to total increase in pressure in the stage is called Pressure coefficient Slip factor Degree of reaction Pressure ratio Pressure coefficient Slip factor Degree of reaction Pressure ratio ANSWER DOWNLOAD EXAMIANS APP
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