An excavator operator is performing precision final grading on a steep embankment for a landscape project. The client requires a consistent 2:1 (horizontal:vertical) slope. The current slope is uneven, and the operator is using a tiltrotator with a grading bucket. What is the most precise method to achieve the specified slope?

Question: An excavator operator is performing precision final grading on a steep embankment for a landscape project. The client requires a consistent 2:1 (horizontal:vertical) slope. The current slope is uneven, and the operator is using a tiltrotator with a grading bucket. What is the most precise method to achieve the specified slope?

Answer options:

• Visually estimate the slope by comparing to nearby existing slopes. ✅ Use a laser receiver on the stick with a rotating laser level to guide the bucket edge.
• Install a string line as a guide for the bucket's final pass.
• Rely on the machine's tilt indicator and a spirit level on the bucket for continuous adjustments.

Correct answer: Use a laser receiver on the stick with a rotating laser level to guide the bucket edge.

Explanation: For precise final grading on a steep slope, using a laser receiver on the stick with a rotating laser level provides real-time, accurate feedback on the bucket's elevation relative to the desired plane, allowing for precise cuts. Visual estimation, string lines, or manual spirit levels might not offer the required precision for a consistent 2:1 slope, especially on an embankment.