Fuels and Combustion Improper storage condition results in the weathering of coal and spontaneous combustion, which increases its Calorific value Caking index Friability & oxygen content Yield of carbonised products Calorific value Caking index Friability & oxygen content Yield of carbonised products ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air. Increases Remains same May increase or decrease depending on the type of fuel Decreases Increases Remains same May increase or decrease depending on the type of fuel Decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Efficiency of the combustion of a fuel is judged by the __________ the flue gas. Temperature of %of CO₂ in % of O₂in Colour of Temperature of %of CO₂ in % of O₂in Colour of ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Lignite is A coking coal A black banded coal which burns with a non-smoky yellowish flame Can be used for gasification and steam generation A high rank coal A coking coal A black banded coal which burns with a non-smoky yellowish flame Can be used for gasification and steam generation A high rank coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of coal is accelerated by the All of these Absence of porous or friable particles Storage in large heaps Storage in compressed piles All of these Absence of porous or friable particles Storage in large heaps Storage in compressed piles ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in a commercial high temperature coal carbonisation plant is about __________ hours. 18 6 28 36 18 6 28 36 ANSWER DOWNLOAD EXAMIANS APP
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