Practice question
Why must the inter-axle differential lock be disengaged when driving on dry, high-traction pavement?
- Keeping it locked on dry pavement causes severe driveline binding ('wind-up'), tire scrubbing, and catastrophic axle or differential shaft breakage during turns
- It disengages the drive axles, leaving the vehicle without traction
- It permanently disables the anti-lock braking system
- It reduces fuel delivery and limits the engine to low power
Answer: A — Keeping it locked on dry pavement causes severe driveline binding ('wind-up'), tire scrubbing, and catastrophic axle or differential shaft breakage during turns
The correct answer is shown above. Try the full quiz for additional practice.
Practice more: AF Commercial Driving Theory Practice Questions - Afghanistan Driving License Theory Test - Commercial & Heavy Vehicle Exam →