Fuels and Combustion Which of the following gaseous fuels is likely to have the highest gross calorific value? Producer gas Sewage gas LPG Natural gas Producer gas Sewage gas LPG Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter content (M) and ash content (A) in coal are approximately related as M = 2A M = 1.1A M = 1.5A M = A M = 2A M = 1.1A M = 1.5A M = A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. Difference in gross & net calorific value of the coke oven gas Free carbon content in tar Yield percentage of coke Yield of ammonia present in coke oven gas Difference in gross & net calorific value of the coke oven gas Free carbon content in tar Yield percentage of coke Yield of ammonia present in coke oven gas 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 None of these Burn the lumpy coal Completely burn the volatile matter Pneumatically convey the pulverised coal None of these Burn the lumpy coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cuprous chloride used in orsat apparatus can absorb All of these Both CO and CO₂ Only CO Both CO and O₂ All of these Both CO and CO₂ Only CO Both CO and O₂ ANSWER DOWNLOAD EXAMIANS APP
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