Fuels and Combustion Presence of phosphorous in metallurgical coal Reduces its calorific value Is not undersirable Increases its caking power Badly affects the quality of steel Reduces its calorific value Is not undersirable Increases its caking power Badly affects the quality of steel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the None of these Complete combustion High oxygen in flue gas Incomplete combustion None of these Complete combustion High oxygen in flue gas Incomplete combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Size of blast furnace grade coke is __________ mm. 0-15 >100 25-80 15-25 0-15 >100 25-80 15-25 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The difference between total carbon and fixed carbon of coal will be minimum in case of Lignite Anthracite High temperature coke (V.M < 0.5%) Bituminous coal Lignite Anthracite High temperature coke (V.M < 0.5%) Bituminous coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher Heat release rate (thus requiring smaller combustion chamber) Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) All of these Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) All of these Adiabatic flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in beehive coke oven is about One week 2-3 days 12 hours Two weeks One week 2-3 days 12 hours Two weeks ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS