Excavator Operator Certification Exam Prep · Question
When is a confined space entry permit NOT required for an excavation that meets the definition of a confined space?
A confined space entry permit is generally not required only if all identified hazards in the confined space have been eliminated or isolated, and there is no p
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Question: When is a confined space entry permit NOT required for an excavation that meets the definition of a confined space?
Answer options:
- When the excavation is continuously monitored by a competent person.
- When the excavation is less than 1.2 metres deep. ✅ When all atmospheric hazards have been eliminated and isolated from re-introduction.
- When only one worker is entering the excavation for a short duration.
Correct answer: When all atmospheric hazards have been eliminated and isolated from re-introduction.
Explanation: A confined space entry permit is generally not required only if all identified hazards in the confined space have been eliminated or isolated, and there is no potential for their re-introduction. If hazards remain, a permit is mandatory. This is a key principle in provincial confined space regulations.
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Question explanations
- During a final inspection of an excavator, prior to beginning work, an operator notices significant play in th
- An excavator operator is preparing to dig a trench in cohesive soil. To achieve maximum breakout force, what a
- Which control typically governs the arm (or dipper arm) movement for an excavator?
- What condition might require sloping or shoring of a trench less than 1.2 meters (4 feet) deep?
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