Excavator Operator Certification Exam Prep · Question
An experienced excavator operator is using GPS-guided machine control to grade a parking lot. The display shows the current bucket tip elevation is -1.25 metres, and the target grade is -1.00 metres. What action should the operator take?
If the current bucket tip elevation (-1.25 m) is lower than the target grade (-1.00 m), it means the operator has cut too deep. To achieve the target grade, the
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Question: An experienced excavator operator is using GPS-guided machine control to grade a parking lot. The display shows the current bucket tip elevation is -1.25 metres, and the target grade is -1.00 metres. What action should the operator take?
Answer options:
- Continue digging down until the target grade is reached.
- Begin backfilling and compacting the area. ✅ Lift the bucket to cut less material until the display shows the target.
- Adjust the machine's offset to match the new target grade.
Correct answer: Lift the bucket to cut less material until the display shows the target.
Explanation: If the current bucket tip elevation (-1.25 m) is lower than the target grade (-1.00 m), it means the operator has cut too deep. To achieve the target grade, the operator needs to lift the bucket to cut less or add material by backfilling. Lifting the bucket until the display indicates the target grade is the correct action to prevent further over-cutting.
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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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