Join WhatsApp ChannelDaily MCQs & Exam Updates
Everyday Science Medium FPSC PPSC NTS Uploaded: 22 Jun 2026

Which everyday device uses the principle of capillary action to function?

  • A Thermometer
  • B Candle wick
  • C Barometer
  • D Magnet
Correct Answer: Option B — Candle wick
Explanation:
A candle wick uses capillary action to draw melted wax upward toward the flame allowing continuous burning as the liquid wax is pulled through the narrow fibers of the wick.
Submitted by: PaperMCQs
Related MCQs