Fuels and Combustion As time passes, the calorific value of stored coal May increase or decrease (depends on the method of storage) Remains unaltered Decreases Increases May increase or decrease (depends on the method of storage) Remains unaltered Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Abrasion index of blast furnace coke should be around __________ percent. 55 80 35 20 55 80 35 20 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not used as a binder in coal briquetting? Tar Line Molasses Pitch Tar Line Molasses Pitch ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. 8000 6000 4000 1000 8000 6000 4000 1000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation and spontaneous combustion of freshly mined coal is accentuated, if Smaller fines are stored in large quantity It is stored in tall heaps It contains large amount of volatile matter All of these Smaller fines are stored in large quantity It is stored in tall heaps It contains large amount of volatile matter All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Much higher Same Either lower or higher, depends on the type of fuel Much lower Much higher Same Either lower or higher, depends on the type of fuel Much lower ANSWER DOWNLOAD EXAMIANS APP
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