Fuels and Combustion Blast furnace gas constitutes mainly of N₂ & CO N₂ & H₂ N₂ & CH₄ CH₄ & CO₂ N₂ & CO N₂ & H₂ N₂ & CH₄ CH₄ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Increases the loss of fine coal dust from the ovens when charging Reduces the coking time Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls None of these Increases the loss of fine coal dust from the ovens when charging Reduces the coking time ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Resistance to impact breakage Abradability Swelling characteristics Agglutinating properties Resistance to impact breakage Abradability Swelling characteristics Agglutinating properties ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. 95-100 60-65 3-5 25-30 95-100 60-65 3-5 25-30 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If CO₂ is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as O₂ CO N₂ SO₂ O₂ CO N₂ SO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the amount of CO₂ formed on its complete combustion Decreases Increases Either A or B, depends on other factors Remains same Decreases Increases Either A or B, depends on other factors Remains same ANSWER DOWNLOAD EXAMIANS APP
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