Fuels and Combustion The hottest part of the flame lies in its____zone. Non-luminous Yellow Unburnt gases Luminous Non-luminous Yellow Unburnt gases Luminous ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Yield of charcoal in high temperature carbonisation of wood is about __________ percent. 10 50 75 25 10 50 75 25 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have Low fusion point of ash High ash content None of these High sulphur Low fusion point of ash High ash content None of these High sulphur ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of tar is about __________ Kcal/kg. 16000 5000 12000 8800 16000 5000 12000 8800 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C All of these Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal 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 Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain ANSWER DOWNLOAD EXAMIANS APP
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