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 Function of secondary air in pulverised coal firing is to Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement Dry the coal Transport the coal to the burner Ensure efficient burning of coal around the burner Reduce primary air requirement ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The advantage of firing pulverised coal in the furnace lies in the fact, that it All of these Permits the use of low fusion point ash coal Accelerates the burning rate and economises on fuel combustion Permits the use of high ash content coal All of these Permits the use of low fusion point ash coal Accelerates the burning rate and economises on fuel combustion Permits the use of high ash content coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal Coke oven gas yield is more Calorific value of coke oven gas is less Tar yield is less but free carbon in tar is more All of these Coke oven gas yield is more Calorific value of coke oven gas is less Tar yield is less but free carbon in tar is more All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the least calorific value (kcal/Nm³) ? Blast furnace gas Coke oven gas Sewage gas Natural gas Blast furnace gas Coke oven gas Sewage gas Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of __________ the flame temperature. Either the fuel or the air or both, increases The gaseous fuel before combustion decreases Combustion air decreases Either the fuel or the air does not affect Either the fuel or the air or both, increases The gaseous fuel before combustion decreases Combustion air decreases Either the fuel or the air does not affect ANSWER DOWNLOAD EXAMIANS APP
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