King of the Highway: The Ultimate Big Rig & Semi-Truck Operations Challenge

Question 9 / 20 2 Minute Reveal 0%
9

What does flipping the inter-axle differential lock switch on the dashboard do?

What does flipping the inter-axle differential lock switch on the dashboard do?

Explanation

Semi-tractors have tandem drive axles. Engaging the inter-axle lock (power divider) forces both axles to drive at identical speeds, preventing one axle from spinning uselessly on ice or mud, maximizing traction.

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