Fuels and Combustion
Cannel coal

Is non-coking
Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named
All of these
Has a high volatile matter content and burns with a luminous smoky flame

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Froth floatation is used for

Removing ash from the coal based on difference in specific gravity of coal and ash
All of these
Washing fine coal dust (< 0.5 mm size)
Washing lump coal (> 80 mm size)

ANSWER DOWNLOAD EXAMIANS APP