Fuels and Combustion Coking time in narrow by-product coke ovens is around __________ hours. 48 80 8 18 48 80 8 18 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke compared to the coal from which it has been made, contains All of these Less volatile matter More carbon Greater percentage of ash All of these Less volatile matter More carbon Greater percentage of ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Low amount/current of combustion air Very little excess air High amount/current of combustion air Preheated secondary air Low amount/current of combustion air Very little excess air High amount/current of combustion air Preheated secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The gasification reaction represented by, C + H₂O = CO + H₂, is Endothermic Exothermic Catalytic Autocatalytic Endothermic Exothermic Catalytic Autocatalytic ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of Pulverised coal in boilers Correct amount of air for combustion Too much air for combustion Less air for combustion Pulverised coal in boilers Correct amount of air for combustion Too much air for combustion Less air for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C All of these All tar is evolved at < 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C Hard semi-coke starts shrinking at 600°C All of these All tar is evolved at < 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS