Fuels and Combustion Coalification means the Direct hydrogenation of coal Process of conversion of lignite into anthracite Underground gasification of coal Complete combustion of coal Direct hydrogenation of coal Process of conversion of lignite into anthracite Underground gasification of coal Complete combustion of coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.1 A M = 0.5 A M = 1.8 A M = A M = 1.1 A M = 0.5 A M = 1.8 A M = A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Bituminous Sub-bituminous Lignite Semi-anthracite Bituminous Sub-bituminous Lignite Semi-anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not applicable to fluidised bed combustion of coal? Less heat transfer surface area is required in boilers None of these It achieves higher fuel combustion efficiency It can not burn low grade coal Less heat transfer surface area is required in boilers None of these It achieves higher fuel combustion efficiency It can not burn low grade coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas compared to coke oven gas has Narrower limit of inflammability Lower theoretical flame temperature Higher calorific value Lower ignition temperature Narrower limit of inflammability Lower theoretical flame temperature Higher calorific value Lower ignition temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficient burning of anthracite coal requires High excess air Fine grinding Low preheat of air All of these High excess air Fine grinding Low preheat of air All of these ANSWER DOWNLOAD EXAMIANS APP
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