Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Hydrogen Methane All of these Unsaturated hydrocarbons Hydrogen Methane All of these Unsaturated hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always < 1 > 1 1 Unpredictable < 1 > 1 1 Unpredictable ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pick out the wrong statement. None of these Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel None of these Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Coalification Carbonisation Gasification Oxidation Coalification Carbonisation Gasification Oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following oil gasification processes is non-catalytic? Onia-Gegi process Segas process Steam reforming of naphtha Semet-Solvay process Onia-Gegi process Segas process Steam reforming of naphtha Semet-Solvay process ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Removal of hydrogen from coke oven gas Does not alter its calorific value Is not possible on commerical scale Decreases its calorific value Increases its calorific value Does not alter its calorific value Is not possible on commerical scale Decreases its calorific value Increases its calorific value ANSWER DOWNLOAD EXAMIANS APP
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