Fuels and Combustion During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the Complete combustion None of these High oxygen in flue gas Incomplete combustion Complete combustion None of these High oxygen in flue gas Incomplete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal All of these All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Critical Air Blast (CAB) value of coke is a direct measure of its None of these Hardness Reactivity Strength None of these Hardness Reactivity Strength ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a rich fuel gas? Coal gas from underground gasification of coal None of these Producer gas Refinery gases Coal gas from underground gasification of coal None of these Producer gas Refinery gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Bituminous coal Lignite High temperature coke (V.M < 0.5%) Anthracite Bituminous coal Lignite High temperature coke (V.M < 0.5%) Anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 35, 000 25, 000 10, 000 2500 35, 000 25, 000 10, 000 2500 ANSWER DOWNLOAD EXAMIANS APP
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