Plumber Red Seal · Question
A plumber is using a power threading machine to prepare steel pipe. The machine suddenly stalls due to a pipe jam. What is the correct procedure to address this situation?
When a power tool stalls or jams, the safest and correct procedure is to immediately de-energize it by turning it off and unplugging it before attempting to cle
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Question: A plumber is using a power threading machine to prepare steel pipe. The machine suddenly stalls due to a pipe jam. What is the correct procedure to address this situation?
Answer options:
- Force the pipe to free it using a pipe wrench. ✅ Immediately turn off and unplug the machine before attempting to clear the jam.
- Adjust the die head to a larger setting to clear the obstruction.
- Call for assistance from another worker to help free the pipe.
Correct answer: Immediately turn off and unplug the machine before attempting to clear the jam.
Explanation: When a power tool stalls or jams, the safest and correct procedure is to immediately de-energize it by turning it off and unplugging it before attempting to clear the obstruction. This prevents accidental restart or further damage, and protects the operator from injury. Using force or adjusting settings without de-energizing is hazardous.
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