Louisiana CDL — Air Brakes practice
Penalties & Licensing
The point system, license suspension, provisional-license rules, insurance requirements, and other licensing basics.
Content reviewed against official driver handbooks · July 7, 2026
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1 sample Penalties & Licensing questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.
1. When checking manual slack adjusters, about how much movement means they probably need adjustment?
Correct answer: More than roughly one inch of play at the push-rod connection
If a slack adjuster shifts more than roughly one inch at the push-rod connection, it likely needs adjusting; out-of-adjustment brakes are the most common roadside-inspection defect.
Source: Louisiana Commercial Driver's License Manual, Section 5.3.2 - Walk-around Inspection
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