Fuels and Combustion Use of preheated air for combustion of fuel in the furnace, increases the Scale losses of the furnace stock Flame temperature None of these Calorific value of the fuel Scale losses of the furnace stock Flame temperature None of these Calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following coal gasification processes will produce gas having maximum methane content? Kopper-Totzek process Winkler process All of these Lurgi process Kopper-Totzek process Winkler process All of these Lurgi process ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Contains more than 90% fussain Is non-coking Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Contains more than 90% fussain Is non-coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Softening temperature of coal ash is a measure of the __________ of coal. Caking tendency Clinkering tendency Coking tendency Size stability Caking tendency Clinkering tendency Coking tendency Size stability ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high volatile matter content will None of these Burn with a small non-smoky flame Have a very high calorific value Give less yield of tar and gas on carbonisation None of these Burn with a small non-smoky flame Have a very high calorific value Give less yield of tar and gas on carbonisation 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
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