Fuels and Combustion
Washing of coal

All of these
Controls its ash fusibility and increases its calorific value
Improves its coking properties
Reduces its sulphur and ash content

ANSWER DOWNLOAD EXAMIANS APP

Fuels and Combustion
Fussain

Has highest fixed carbon and lowest volatile matter content of all the four banded components of coal
Is friable, charcoal like substance
All of these
Is non-coking, but when blended with highly coking coal, controls its swelling and produces high strength coke on carbonisation

ANSWER DOWNLOAD EXAMIANS APP