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 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. 400-500 1700-1800 900-1000 1400-1500 400-500 1700-1800 900-1000 1400-1500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the Requirement of large volume combustion chamber Chances of clinker formation Incomplete combustion of coal Risk of explosion Requirement of large volume combustion chamber Chances of clinker formation Incomplete combustion of coal Risk of explosion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal containing very high percentage of durain is called __________ coal. Splint Non-banded Boghead Bright Splint Non-banded Boghead Bright ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Most of the coking coals are None of these Anthracite Bituminous Lignite None of these Anthracite Bituminous Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Weathering of coal during storage causes Reduction in coal size Increase in its friability Decrease in its caking capacity All of these Reduction in coal size Increase in its friability Decrease in its caking capacity All of these ANSWER DOWNLOAD EXAMIANS APP
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