Fuels and Combustion Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of 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 Pulverised coal in boilers Correct amount of air for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is the most reactive (as regards the formation of CO + H₂ from C + H₂O) ? Sub-bituminous coal Blast furnace coke Low temperature coke Anthracite coal Sub-bituminous coal Blast furnace coke Low temperature coke Anthracite coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Increase in ash content of blast furnace coke Decreases its hardness and abrasion resistance Reduces its consumption in the furnace Does not affect its consumption in the furnace Increases its consumption in the furnace Decreases its hardness and abrasion resistance Reduces its consumption in the furnace Does not affect its consumption in the furnace Increases its consumption in the furnace 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
Fuels and Combustion Weathering of coal during storage causes Reduction in coal size All of these Increase in its friability Decrease in its caking capacity Reduction in coal size All of these Increase in its friability Decrease in its caking capacity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ionisation potential applied across the electrodes of electrostatic tar precipitator is around 60 KV DC 230 V AC 230 V DC 60 KV AC 60 KV DC 230 V AC 230 V DC 60 KV AC ANSWER DOWNLOAD EXAMIANS APP
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