Fuels and Combustion A coal containing very high percentage of durain is called __________ coal. Non-banded Boghead Bright Splint Non-banded Boghead Bright Splint ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For every 10% increase in the excess air; the fuel consumption increases by __________ percent. 10 2 0.1 5 10 2 0.1 5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal decreases its Both B and C Ash content Caking index Mineral matter content Both B and C Ash content Caking index Mineral matter content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for Washing lump coal (> 80 mm size) Washing fine coal dust (< 0.5 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash All of these Washing lump coal (> 80 mm size) Washing fine coal dust (< 0.5 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 900-1000 1400-1500 1700-1800 400-500 900-1000 1400-1500 1700-1800 400-500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of phosphorous in metallurgical coal Reduces its calorific value 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 ANSWER DOWNLOAD EXAMIANS APP
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