Heavy Equipment Operator Certification Exam Prep · Question
When operating a backhoe near existing underground utilities, what is the safest approach?
Contacting 'Call Before You Dig' services (Ontario One Call, BC One Call, etc.) and then hand digging or hydro-vacing within the specified proximity (often 1.0-
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Question: When operating a backhoe near existing underground utilities, what is the safest approach?
Answer options:
- Assume the utility locations based on visible markers and dig carefully. ✅ Always hand dig or hydro-vac within 1.0 to 1.5 metres of marked utility lines after contacting 'Call Before You Dig' (e.g., Ontario One Call).
- Use the backhoe bucket to gently probe for utilities until they are located.
- Proceed with machine digging if no direct overhead lines are visible.
Correct answer: Always hand dig or hydro-vac within 1.0 to 1.5 metres of marked utility lines after contacting 'Call Before You Dig' (e.g., Ontario One Call).
Explanation: Contacting 'Call Before You Dig' services (Ontario One Call, BC One Call, etc.) and then hand digging or hydro-vacing within the specified proximity (often 1.0-1.5m) of marked utilities is essential to prevent damage and ensure safety, as per provincial OHS regulations like AB OHS Code Part 32.
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