Fuels and Combustion Caking index of coal blend used for blast furnace coke making is about 22 8 12 36 22 8 12 36 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which is the most matured coal? Semi-anthracite Bituminous Anthracite Lignite Semi-anthracite Bituminous Anthracite Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a measure of the agglutinating (i.e., binding) property of coal? Swelling index Thickness of plastic layer Gray-king index Caking index Swelling index Thickness of plastic layer Gray-king index Caking index ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pick out the wrong statement. Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing None of these Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing None of these Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these Thick fire bed and preheated primary air Low forced draught and fuel bed temperature Low reactivity of carbonised residue containing high proportions of iron & sulphur All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 550 750 950 1150 550 750 950 1150 ANSWER DOWNLOAD EXAMIANS APP