Fuels and Combustion Naphthalene is used for making Insecticides (e.g. moth balls) Drug intermediates e.g. β-naphthol All of these Unsaturated polyesters Insecticides (e.g. moth balls) Drug intermediates e.g. β-naphthol All of these Unsaturated polyesters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Number of macrocomponents present in coal according to Stopes are Four Two Five Six Four Two Five Six ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen percentage (by weight) in atmospheric air is 21 29 19 23 21 29 19 23 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Deficiency of combustion air during combustion of a gaseous fuel Lengthens the flame Both A & B Shortens the flame Causes heat loss of fuel by its partial combustion Lengthens the flame Both A & B Shortens the flame Causes heat loss of fuel by its partial combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High ash containing coke Produces more slag when used in the blast furnace Is desirable in producer gas manufacture Has poor strength and abrasion resistance None of these Produces more slag when used in the blast furnace Is desirable in producer gas manufacture Has poor strength and abrasion resistance None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which will have the least volatile matter and hence will be the most difficult to ignite? Coke Aanthracite Bituminous coal Semi-bituminous coal Coke Aanthracite Bituminous coal Semi-bituminous coal ANSWER DOWNLOAD EXAMIANS APP
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