Fuels and Combustion Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if It contains large amount of volatile matter It is stored in tall heaps Smaller fines are stored in large quantity All of these It contains large amount of volatile matter It is stored in tall heaps Smaller fines are stored in large quantity All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sulphur in metallurgical coal Both A and B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Neither A nor B Contributes to its heating value Both A and B Affects the quality of steel produced as cracks develop on the surface while rolling the steel Neither A nor B Contributes to its heating value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. Either more or less; depends on the type of fuel Equal to More than Less than Either more or less; depends on the type of fuel Equal to More than Less than ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Produces coke with very poor strength Takes 2-3 days for coking of coal but requires no external fuel for heating ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good metallurgical coke should have very low Porosity Fusion point of its ash Sulphur & phosphorous content Hardness & strength Porosity Fusion point of its ash Sulphur & phosphorous content Hardness & strength ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most poisonous gas? Blast furnace gas Producer gas Coke oven gas L.D. converter gas Blast furnace gas Producer gas Coke oven gas L.D. converter gas ANSWER DOWNLOAD EXAMIANS APP
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