313D Residential Air Conditioning Systems Mechanic
The 313D Residential Air Conditioning Systems Mechanic Certificate of Qualification exam, administered by Skilled Trades Ontario, validates competency in installing, servicing, and maintaining residential air conditioning and heat pump systems.
150
Questions
240 min
Time Limit
70%
To Pass
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Exam Rules
- You can skip questions and return to them later
- Flag questions for review before submitting
- No feedback shown until you submit the entire exam
- Unanswered questions count as wrong — answer everything
- 10 pretest questions are mixed in and don't affect your score
- Timer auto-submits when time runs out
- Your progress is auto-saved every 30 seconds