Fuels and Combustion Ratio of primary air to secondary air increases with increase in the rank of coal, because the Ratio of fixed carbon to volatile matter increases Oxygen content progressively decreases High rank coals have higher amount of volatile matter Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases Oxygen content progressively decreases High rank coals have higher amount of volatile matter Calorific value of the coal increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product fuel? Refinery gas Pitch Blast furnace gas Petrol Refinery gas Pitch Blast furnace gas Petrol ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard pitch is used for making Pulverised fuel Insecticides Perfumes Plastics Pulverised fuel Insecticides Perfumes Plastics ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following fuel gases is heavier than air? Blast furnace gas Natural gas Coke oven gas Water gas Blast furnace gas Natural gas Coke oven gas Water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Low reactivity of carbonised residue containing high proportions of iron & sulphur Thick fire bed and preheated primary air Low forced draught and fuel bed temperature All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur Thick fire bed and preheated primary air Low forced draught and fuel bed temperature All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal does not reduce its S & P content Heating value None of these Fusion point of ash S & P content Heating value None of these Fusion point of ash ANSWER DOWNLOAD EXAMIANS APP
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