Questions on BORING

The main purpose of boring operation, as compared to drilling is to:

  (a)  Drill a hole  

  (b)  Finish the drilled hole

  (c)  Correct the hole 

  (d)  Enlarge the existing hole

Ans-d

Enlarging an existing circular hole with a rotating single point tool is called   

  (a)  Boring        (b)  Drilling

   (c)  Reaming   (d)  Internal turning.

Ans-a