Magnetic permeability of iron is increased by its_____________________?

Question: Width of the coke oven towards coke side is slightly more than that on pusher side to
[A].

facilitate easy discharging of coke as it swells during carbonisation.

[B].

facilitate uniform heating of the oven.

[C].

increase the output of the coke.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.