Multiple choice general knowledge

The operation of enlarging of a hole is called

  1. drilling

  2. reaming

  3. boring

  4. counter sinking
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Boring is the operation of enlarging an already-existing hole to achieve precise diameter and surface finish. Drilling creates the initial hole from solid material. Reaming is a finishing operation that slightly enlarges and smooths a hole. Counter sinking creates a conical seat for screw heads. The question specifically asks about ENLARGING operations.

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