Fuels and Combustion Presence of phosphorous in metallurgical coal Is not undersirable Reduces its calorific value Badly affects the quality of steel Increases its caking power Is not undersirable Reduces its calorific value Badly affects the quality of steel Increases its caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Shatter index of metallurgical coke on 2 inches and 0.5 inch screen should be respectively around __________ percent. 80 and 97 40 and 70 95 and 100 25 and 97 80 and 97 40 and 70 95 and 100 25 and 97 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Most of the coking coals are None of these Lignite Bituminous Anthracite None of these Lignite Bituminous Anthracite 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 Stack heat losses can be minimised by Controlling the excess air Oxygen enrichment of combustion air Maintaining proper draft in the furnace Using low c.v. fuels Controlling the excess air Oxygen enrichment of combustion air Maintaining proper draft in the furnace Using low c.v. fuels ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The advantage of firing pulverised coal in the furnace lies in the fact, that it Accelerates the burning rate and economises on fuel combustion Permits the use of low fusion point ash coal Permits the use of high ash content coal All of these Accelerates the burning rate and economises on fuel combustion Permits the use of low fusion point ash coal Permits the use of high ash content coal All of these ANSWER DOWNLOAD EXAMIANS APP
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