Excavator Operator Certification Exam Prep · Question
What is the primary function of the swing brake on an excavator?
The swing brake is designed to lock the excavator's upper structure in place, preventing unintended rotation, especially when working on slopes or during transp
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Question: What is the primary function of the swing brake on an excavator?
Answer options: ✅ To stop the rotation of the excavator's upper structure.
- To prevent the boom from drifting down.
- To engage the track motors for travel.
- To lock the bucket in a fixed position.
Correct answer: To stop the rotation of the excavator's upper structure.
Explanation: The swing brake is designed to lock the excavator's upper structure in place, preventing unintended rotation, especially when working on slopes or during transport.
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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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