Multiple choice general knowledge science & technology

Which motor is NOT suitable for use as a DC machine?

  1. Permanent magnet motor

  2. Series motor

  3. Squirrel cage motor

  4. Synchronous motor
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A squirrel cage induction motor is an AC motor and cannot function as a DC machine without additional complex conversion equipment. The other options can all work with DC: permanent magnet motors use DC directly, series motors (universal motors) can run on both AC and DC, and synchronous motors can be designed for DC operation.

Keep practicing — related questions