Fuels and Combustion Prime coking coal is always blended with medium or non- coking coal before ear-bonisation To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Both A & B Because, it alone produces unreactive coke Neither A nor B To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls Both A & B Because, it alone produces unreactive coke Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of coke even gas produced by low temperature carbonisation of coal is about __________ Kcal/Nm³. 2500 6500 10000 4000 2500 6500 10000 4000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main constituents of purified Lurgi gas are CO₂, O₂ & CO H₂, CmHn & CO₂ N₂, H₂ & CO₂ CO, H₂ & CH₄ CO₂, O₂ & CO H₂, CmHn & CO₂ N₂, H₂ & CO₂ CO, H₂ & CH₄ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When the coal is heated in absence of air, it is called its Carbonisation Coalification Deoxidation Gasification Carbonisation Coalification Deoxidation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In flue gas analysis by Orsat's apparatus, oxygen is absorbed by None of these Cuprous chloride Potassium hydroxide Alkaline pyragllol solution None of these Cuprous chloride Potassium hydroxide Alkaline pyragllol solution 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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