Red Seal Electrician Practice
MotorsQuestion 353 of 1506

What is the standard duty rating of a general-purpose motor?

  1. Short-time duty of 5 to 60 minutes
  2. Intermittent duty with long rest periods
  3. Continuous duty at rated load
  4. Starting duty with no running period
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Correct answer: Continuous duty at rated load

Specialized motors can be built for short-time duty, but standard motors are continuous rated.

Source: Troubleshooting Motors and Controls (Dickson-Self), 6.1: Testing Motor Components

Practice motors

Questions last reviewed: 18 October 2026