Prime coking coal is always blended with medium or non- coking coal
before carbonisation
(A) To check against its excessive swelling during heating, which may exert
high pressure and damage coke oven walls
(B) Because, it alone produces unreactive coke
(C) Both (A) and (B)
(D) Neither (A) nor (B)
before carbonisation
(A) To check against its excessive swelling during heating, which may exert
high pressure and damage coke oven walls
(B) Because, it alone produces unreactive coke
(C) Both (A) and (B)
(D) Neither (A) nor (B)