Fuels and Combustion The function of secondary combustion air is to None of these Completely burn the volatile matter Burn the lumpy coal Pneumatically convey the pulverised coal None of these Completely burn the volatile matter Burn the lumpy coal Pneumatically convey the pulverised coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Semi-bituminous coal Bituminous coal Coke Aanthracite Semi-bituminous coal Bituminous coal Coke Aanthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Nitrogen in coal Is present upto 1-2% Is recovered as ammonia during its carbonisation All of these Comes from protein in parent vegetable matter Is present upto 1-2% Is recovered as ammonia during its carbonisation All of these Comes from protein in parent vegetable matter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Phenol & naphthalene Anthracene & creosote Benzol & pitch None of these Phenol & naphthalene Anthracene & creosote Benzol & pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content in coking coal may be about __________ percent. 7 1 46 22 7 1 46 22 ANSWER DOWNLOAD EXAMIANS APP
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