Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = 1.8 A M = A M = 0.5 A M = 1.1 A M = 1.8 A M = A M = 0.5 A M = 1.1 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficient burning of anthracite coal requires Fine grinding All of these Low preheat of air High excess air Fine grinding All of these Low preheat of air High excess air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High amount of sulphur and phosphorous in coke causes None of these Decrease in its calorific value Increase in its strength Brittleness of steel made by using it None of these Decrease in its calorific value Increase in its strength Brittleness of steel made by using it ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal compared to the lumpy coal Provides better control of furnace temperature All of these Provides higher thermal efficiency & flame temperature Facilitates combustion with lower excess air Provides better control of furnace temperature All of these Provides higher thermal efficiency & flame temperature Facilitates combustion with lower excess air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Cupola in foundaries Sinter making Domestic ovens Iron blast furnace Cupola in foundaries Sinter making Domestic ovens Iron blast furnace ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion By-products are __________ recovered in 'Beehive ovens'. Partially Not at all Fully Negligibly Partially Not at all Fully Negligibly ANSWER DOWNLOAD EXAMIANS APP
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