Fuels and Combustion Volumetric ratio of N₂ to O₂ in dry atmospheric air is 0.79 4.76 0.21 3.76 0.79 4.76 0.21 3.76 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for Removing ash from the coal based on difference in specific gravity of coal and ash All of these Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) Removing ash from the coal based on difference in specific gravity of coal and ash All of these Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Safe condition for storage of high V.M. bituminous coal is that Height of the coal heap should be < 3 metres Maximum 200 tons should be stored in a heap Neither A nor B Both A and B Height of the coal heap should be < 3 metres Maximum 200 tons should be stored in a heap Neither A nor B Both A and B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High amount of sulphur and phosphorous in coke causes Increase in its strength Decrease in its calorific value Brittleness of steel made by using it None of these Increase in its strength Decrease in its calorific value Brittleness of steel made by using it None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Benzene is used For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a motor fuel As an explosive As a perfume For making insecticides (e.g., DDT, BHC etc.), detergent & rubber (SBR) As a motor fuel As an explosive As a perfume ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of 'gobar' (cow dung). Oxidation Hydrolysis Fermentation Dehydration Oxidation Hydrolysis Fermentation Dehydration ANSWER DOWNLOAD EXAMIANS APP
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