Fuels and Combustion The hottest part of the flame lies in its____zone. Unburnt gases Non-luminous Yellow Luminous Unburnt gases Non-luminous Yellow Luminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Naphthalene is used for making Drug intermediates e.g. β-naphthol Insecticides (e.g. moth balls) All of these Unsaturated polyesters Drug intermediates e.g. β-naphthol Insecticides (e.g. moth balls) All of these Unsaturated polyesters ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in Fine sizes without the presence of any lump Shallow and small piles Closed space without any ventilation facility Large heaps with small surface to volume ratio Fine sizes without the presence of any lump Shallow and small piles Closed space without any ventilation facility Large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main use of hard coke produced by high temperature carbonisation is in the Cupola in foundaries Iron blast furnace Sinter making Domestic ovens Cupola in foundaries Iron blast furnace Sinter making Domestic ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Size of blast furnace grade coke is __________ mm. >100 15-25 25-80 0-15 >100 15-25 25-80 0-15 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The optimum percentage of excess air for combustion depends upon the __________ of the fuel. Type (solid, liquid or gaseous) Ignition temperature Sulphur content Calorific value Type (solid, liquid or gaseous) Ignition temperature Sulphur content Calorific value ANSWER DOWNLOAD EXAMIANS APP
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