Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A municipal grader operating on a compacted gravel road often encounters situations where one wheel is on a slippery patch while the other is on firm ground. The operator reports losing power to the wheel on solid ground. This indicates an issue with which component?
A conventional differential is designed to allow wheels to turn at different speeds but will send all available torque to the path of least resistance (the slip
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Question: A municipal grader operating on a compacted gravel road often encounters situations where one wheel is on a slippery patch while the other is on firm ground. The operator reports losing power to the wheel on solid ground. This indicates an issue with which component?
Answer options: ✅ The conventional differential
- The transmission's main hydraulic pump
- The engine's cooling system
- The grader's articulation cylinders
Correct answer: The conventional differential
Explanation: A conventional differential is designed to allow wheels to turn at different speeds but will send all available torque to the path of least resistance (the slipping wheel), causing the wheel on firm ground to receive no power. This is why differential locks are used.
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