Fuels and Combustion Volatile matter content in coking coal may be about __________ percent. 46 1 7 22 46 1 7 22 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of coal on grate, clinker formation is increased by the Use of preheated primary air Low fusion point of ash (< 1100° C) All of these Use of thick fire bed Use of preheated primary air Low fusion point of ash (< 1100° C) All of these Use of thick fire bed ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Heat losses Long flame Condensation of water vapour from the fuel gas None of these Heat losses Long flame Condensation of water vapour from the fuel gas None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO₂, 20%CO and 10%O₂. The percent excess oxygen used is 0 10 20 12.5 0 10 20 12.5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Stack heat losses can be minimised by Maintaining proper draft in the furnace Controlling the excess air Using low c.v. fuels Oxygen enrichment of combustion air Maintaining proper draft in the furnace Controlling the excess air Using low c.v. fuels Oxygen enrichment of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Yield of blast furnace gas is about __________ Nm³ /ton of pig iron. 5000 2000 300 10000 5000 2000 300 10000 ANSWER DOWNLOAD EXAMIANS APP
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