WBCS.LIVE practice question

Which type/types of pen uses/use capillary action in addition to gravity for flow of ink?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Fountain pen
  2. Ballpoint pen
  3. Gel pen
  4. Both ballpoint and gel pens

Correct answer and explanation

Correct answer: Ballpoint pen