Fuels and Combustion A coal that softens and fuses on heating is Non-caking Classified Caking Carbonised Non-caking Classified Caking Carbonised ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Transport the coal to the burner Reduce primary air requirement Dry the coal Ensure efficient burning of coal around the burner Transport the coal to the burner Reduce primary air requirement Dry the coal Ensure efficient burning of coal around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature carbonisation Is mainly for producing the smokeless domestic coke Produces higher quantity of gas than high temperature carbonisation Produces less quantity of tar than high temperature carbonisation Is meant for the production of 'metallurgical coke' Is mainly for producing the smokeless domestic coke Produces higher quantity of gas than high temperature carbonisation Produces less quantity of tar than high temperature carbonisation Is meant for the production of 'metallurgical coke' ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Badly affects the quality of steel Increases its caking power Is not undersirable Reduces its calorific value Badly affects the quality of steel Increases its caking power Is not undersirable Reduces its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During combustion of gaseous fuels, deficiency of air Increases the flame temperature Lengthens the flame Tends to shorten the flame Does not affect the flame length Increases the flame temperature Lengthens the flame Tends to shorten the flame Does not affect the flame length ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind? 50 85 100 70 50 85 100 70 ANSWER DOWNLOAD EXAMIANS APP
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