Fuels and Combustion Coals used for the generation of producer gas should have Very low ash content (8-10%) Low fusion point of ash High volatile matter content High caking index Very low ash content (8-10%) Low fusion point of ash High volatile matter content High caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 6 36 28 18 6 36 28 18 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 of ammonia present in coke oven gas Yield percentage of coke Difference in gross & net calorific value of the coke oven gas Free carbon content in tar Yield of ammonia present in coke oven gas Yield percentage of coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm³ ), while the C.V. is same on weight basis (i.e., kcal/kg) ? Sewage gas and gobar gas Propane and LPG F. gas and coke oven gas Propane and acetylene Sewage gas and gobar gas Propane and LPG F. gas and coke oven gas Propane and acetylene ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces Higher amount of methane Both A & B Lower amount of hydrogen Higher amount of both methane and hydrogen Higher amount of methane Both A & B Lower amount of hydrogen Higher amount of both methane and hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Use of pulverised coal in boiler furnace provides Smokeless burning High calorific value Less erosion on furnace walls Better combustion Smokeless burning High calorific value Less erosion on furnace walls Better combustion ANSWER DOWNLOAD EXAMIANS APP
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