Welder Red Seal · Question
A welder is completing a hot work operation near combustible materials. After the welding is finished, what is the minimum duration a fire watch must remain on post-hot work, according to standard safety practices?
Industry best practices and many safety regulations, such as those referenced in CSA W117.2, typically require a fire watch to remain for at least 30 minutes af
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Question: A welder is completing a hot work operation near combustible materials. After the welding is finished, what is the minimum duration a fire watch must remain on post-hot work, according to standard safety practices?
Answer options:
- 15 minutes ✅ 30 minutes
- 60 minutes
- As long as smoke is visible
Correct answer: 30 minutes
Explanation: Industry best practices and many safety regulations, such as those referenced in CSA W117.2, typically require a fire watch to remain for at least 30 minutes after hot work is completed to ensure no smouldering materials ignite. Waiting only 15 minutes or until smoke is visible may be insufficient to detect and extinguish a delayed ignition. While some specific situations may require longer, 30 minutes is the generally accepted minimum.
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Question explanations
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