Fuels and Combustion Washing of coal Controls its ash fusibility and increases its calorific value Reduces its sulphur and ash content Improves its coking properties All of these Controls its ash fusibility and increases its calorific value Reduces its sulphur and ash content Improves its coking properties All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following coke has the least percentage of ash? Beehive coke Petroleum coke Metallurgical coke Foundary coke Beehive coke Petroleum coke Metallurgical coke Foundary coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The function of secondary combustion air is to Completely burn the volatile matter Pneumatically convey the pulverised coal Burn the lumpy coal None of these Completely burn the volatile matter Pneumatically convey the pulverised coal Burn the lumpy coal None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Light oil whose major component is benzol, is obtained by the distillation of crude tar in the temperature range of __________ °C. 200-300 250-270 80-170 280-300 200-300 250-270 80-170 280-300 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen in coal Is present upto 1-2% All of these Comes from protein in parent vegetable matter Is recovered as ammonia during its carbonisation Is present upto 1-2% All of these Comes from protein in parent vegetable matter Is recovered as ammonia during its carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains More carbon Less volatile matter Greater percentage of ash All of these More carbon Less volatile matter Greater percentage of ash All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS