Compressors, Gas Turbines and Jet Engines Gas turbines use following type of air compressor Centrifugal type Reciprocating type Lobe type Axial flow type Centrifugal type Reciprocating type Lobe type Axial flow type ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The compressor efficiency is the Total output/air input Compression work/motor input Isothermal H.P./shaft H.R Isothermal H.P/indicated H.R Total output/air input Compression work/motor input Isothermal H.P./shaft H.R Isothermal H.P/indicated H.R ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines A turboprop is preferred to turbojet because It can fly at supersonic speeds It has high power for take off It can fly at high elevations It has high propulsive efficiency at high speeds It can fly at supersonic speeds It has high power for take off It can fly at high elevations It has high propulsive efficiency at high speeds ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air-fuel ratio in gas turbines is of the order of 15: 1 50: 1. 30: 1 7: 1 15: 1 50: 1. 30: 1 7: 1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The efficiency of a jet engine is higher at Low speeds High speeds High altitudes Low altitudes Low speeds High speeds High altitudes Low altitudes ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The indicated work per unit mass of air delivered is Greatly affected by clearance volume Inversely proportional to clearance volume Directly proportional to clearance volume Not affected by clearance volume Greatly affected by clearance volume Inversely proportional to clearance volume Directly proportional to clearance volume Not affected by clearance volume ANSWER DOWNLOAD EXAMIANS APP
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