Fuels and Combustion Coal tar fuels (CTF) as compared to petroleum based fuel oils have higher Difference in gross & net calorific value Sulphur content Higher C/H ratio Calorific value Difference in gross & net calorific value Sulphur content Higher C/H ratio Calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Methane Hydrogen Unsaturated hydrocarbons All of these Methane Hydrogen Unsaturated hydrocarbons All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of a gaseous fuel results in increased Quantity of flue gas Ignition temperature Flame temperature Flame length Quantity of flue gas Ignition temperature Flame temperature Flame length ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The calorific value of natural gas is about __________ kcal/Nm³. 35, 000 10, 000 2500 25, 000 35, 000 10, 000 2500 25, 000 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. Carbonisation Coalification Gasification Oxidation Carbonisation Coalification Gasification Oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is coking? Neither A nor B Vitrain Both A & B Fussain Neither A nor B Vitrain Both A & B Fussain ANSWER DOWNLOAD EXAMIANS APP
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