Heavy Duty Equipment Technician Red Seal Exam Prep · Question
A heavy-duty off-road truck with tandem drive axles on a gravel road experiences difficulty maintaining traction. The front axle is consistently spinning when encountering loose material. What component should the operator check to improve traction on that axle?
The inter-axle differential lock is designed to prevent wheelspin between the tandem axles, distributing power evenly. Engaging it would force both axles to tur
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Question: A heavy-duty off-road truck with tandem drive axles on a gravel road experiences difficulty maintaining traction. The front axle is consistently spinning when encountering loose material. What component should the operator check to improve traction on that axle?
Answer options: ✅ Inter-axle differential lock
- Main transmission shift lever
- Engine coolant temperature sensor
- Hydraulic pump pressure for steering
Correct answer: Inter-axle differential lock
Explanation: The inter-axle differential lock is designed to prevent wheelspin between the tandem axles, distributing power evenly. Engaging it would force both axles to turn at the same speed, improving traction where one axle is slipping.
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