Question

to prevent the bit from seizing
select one:
○ a. run at a slow rpm
○ b. run at a high rpm
○ c. reduce pressure to the pilot feed levelers just before bit breaks through back side
○ d. apply cutting lubricant

Explanation:

Applying cutting lubricant reduces friction between the bit and the material being cut, preventing seizing. Running at slow or high RPMs doesn't directly address seizing. Reducing pressure just before bit breaks through back - side is related to a different aspect of bit operation.

Answer:

D. Apply cutting lubricant