Heavy Duty Equipment Technician Red Seal Exam Prep · Question
What is the function of a differential lock in an off-road heavy equipment application?
When engaged, a differential lock prevents the differential from allowing wheels to spin at different speeds. This ensures that power is sent to both wheels on
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Question: What is the function of a differential lock in an off-road heavy equipment application?
Answer options: ✅ To prevent wheel slip on low traction surfaces by locking the differential
- To allow faster turning by enabling different wheel speeds
- To increase fuel economy during highway travel
- To reduce wear on the tires
Correct answer: To prevent wheel slip on low traction surfaces by locking the differential
Explanation: When engaged, a differential lock prevents the differential from allowing wheels to spin at different speeds. This ensures that power is sent to both wheels on an axle, providing maximum traction on slippery or uneven terrain.
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