Fuels and Combustion High ash containing coke Is desirable in producer gas manufacture Has poor strength and abrasion resistance Produces more slag when used in the blast furnace None of these Is desirable in producer gas manufacture Has poor strength and abrasion resistance Produces more slag when used in the blast furnace None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace coke is made from coal by High temperature carbonisation Medium temperature carbonisation Low temperature carbonisation Heating the coal in an oven in presence of air High temperature carbonisation Medium temperature carbonisation Low temperature carbonisation Heating the coal in an oven in presence of air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion reaction of fuels is a/an __________ reaction. Endothermic None of these Exothermic Auto catalytic Endothermic None of these Exothermic Auto catalytic ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 15 & 8 10 & 3 3 & 10 10 & 20 15 & 8 10 & 3 3 & 10 10 & 20 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 Oxidation Gasification Carbonisation Coalification Oxidation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal is done to reduce the Inherent impurities Both B and C Mineral matter Adhering impurities Inherent impurities Both B and C Mineral matter Adhering impurities ANSWER DOWNLOAD EXAMIANS APP