Fuels and Combustion With increase in the oxygen content of the coal, its __________ decreases. Neither A nor B Caking power Both A & B Calorific value Neither A nor B Caking power Both A & B Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gobar gas is produced by the __________ of 'gobar' (cow dung). Oxidation Fermentation Hydrolysis Dehydration Oxidation Fermentation Hydrolysis Dehydration ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace coke is made from coal by High temperature carbonisation Medium temperature carbonisation Low temperature carbonisation Heating the coal in an oven in presence of air High temperature carbonisation Medium temperature carbonisation Low temperature carbonisation Heating the coal in an oven in presence of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation Both A & B To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Because, it alone produces unreactive coke Neither A nor B Both A & B To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Because, it alone produces unreactive coke Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in calorific value of fuels, their adiabatic flame temperatures May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged Decrease May increase or decrease ; depends on the quantity of products of combustion Increase Remain unchanged Decrease ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ionisation potential applied across the electrodes of electrostatic tar precipitator is around 230 V AC 230 V DC 60 KV AC 60 KV DC 230 V AC 230 V DC 60 KV AC 60 KV DC ANSWER DOWNLOAD EXAMIANS APP
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