Excavator Operator Certification Exam Prep · Question
An excavator operator is working near an overhead power line and witnesses a co-worker make contact with the boom. The operator suspects the power line is energized. What is the *first* action the operator should take?
If contact with an energized power line occurs, the *first* priority is to warn others to stay clear and immediately call 911/emergency services. Attempting to
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Question: An excavator operator is working near an overhead power line and witnesses a co-worker make contact with the boom. The operator suspects the power line is energized. What is the first action the operator should take?
Answer options:
- Attempt to move the machine away from the power line. ✅ Warn others to stay clear and call 911.
- Immediately exit the cab and check on the co-worker.
- Attempt to de-energize the power line.
Correct answer: Warn others to stay clear and call 911.
Explanation: If contact with an energized power line occurs, the first priority is to warn others to stay clear and immediately call 911/emergency services. Attempting to move the machine or exit can be fatal due to step and touch potential. Isolation from the arc is critical until professionals arrive.
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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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