Compressors, Gas Turbines and Jet Engines A gas turbine used in air craft should have Low weight and small frontal area High speed and high h.p. Small frontal area and high h.p. High h.p. and low weight Low weight and small frontal area High speed and high h.p. Small frontal area and high h.p. High h.p. and low weight ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ramjet engine Produces a jet consisting of plasma Is not self operating at zero flight speed Is self operating at zero flight speed Requires no air for its operation Produces a jet consisting of plasma Is not self operating at zero flight speed Is self operating at zero flight speed Requires no air for its operation ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Reheating in gas turbine results in Increase of work ratio Decrease of work ratio Both (A) and (B) above Decrease of thermal efficiency Increase of work ratio Decrease of work ratio Both (A) and (B) above Decrease of thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines In a jet engine, the air-fuel ratio is 2.5006944444444 1.2506944444444 2.0840277777778 1.6673611111111 2.5006944444444 1.2506944444444 2.0840277777778 1.6673611111111 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If infinite number of heaters be used in a gas turbine, then expansion process in turbine approaches Isochoric Isentropic Isothermal Adiabatic Isochoric Isentropic Isothermal Adiabatic ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines If the clearance ratio for a reciprocating air compressor is 'K', then its volumetric efficiency is given by 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂)1/n 1 + k - k (p₂/p₁)1/n 1 - k + k (p₁/p₂) n- 1/n 1 + k - k (p₂/p₁) n-1/n 1 - k + k (p₁/p₂)1/n ANSWER DOWNLOAD EXAMIANS APP
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