Compressors, Gas Turbines and Jet Engines Water gas is produced by Passing steam over incandescent coke Passing air and a large amount of steam over waste coal at about 65°C Carbonisation of coal Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast Passing steam over incandescent coke Passing air and a large amount of steam over waste coal at about 65°C Carbonisation of coal Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The work ratio of simple gas turbine cycle depends on All of these Minimum cycle temperature Maximum cycle temperature Pressure ratio All of these Minimum cycle temperature Maximum cycle temperature Pressure ratio ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The volumetric efficiency of a compressor falls roughly as follows for every 100 m increase in elevation 1.0% 0.5% 5% 0.1% 1.0% 0.5% 5% 0.1% ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The clearance volume of the air compressor is kept minimum because It allows maximum compression to be achieved It greatly affects volumetric efficiency It permits isothermal compression It results in minimum work It allows maximum compression to be achieved It greatly affects volumetric efficiency It permits isothermal compression It results in minimum work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines An after-cooler is used to Remove impurities from air Cool the air Reduce volume of air Cause moisture and oil vapour to drop out Remove impurities from air Cool the air Reduce volume of air Cause moisture and oil vapour to drop out ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would Increase Remain same Decrease None of these Increase Remain same Decrease None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS