Heavy Equipment Operator Certification Exam Prep · Question
When operating a motor grader, what control allows the operator to change the angle of the blade relative to the direction of travel?
The blade circle (which rotates the blade horizontally) and drawbar (which shifts the blade side-to-side) controls work together to set the blade's angle, allow
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Question: When operating a motor grader, what control allows the operator to change the angle of the blade relative to the direction of travel?
Answer options:
- The lift cylinders.
- The articulation joint. ✅ The blade circle and drawbar controls.
- The scarifier levers.
Correct answer: The blade circle and drawbar controls.
Explanation: The blade circle (which rotates the blade horizontally) and drawbar (which shifts the blade side-to-side) controls work together to set the blade's angle, allowing for efficient material movement and spreading.
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