Maryland CDL Combination Vehicles: Inspecting the Coupling Test 2026

A coupling can look fine and still be unsafe, which is why the Maryland CDL combination inspecting coupling test drills a thorough visual check. This 2026 practice walks you through examining the fifth wheel for cracks and proper lock, confirming there is no gap between the upper and lower fifth-wheel plates, checking that the kingpin is fully seated, and verifying the safety latch is closed.

You will learn to look for the right amount of fifth-wheel grease, spot mounting bolts that have worked loose, and confirm the release arm is in the locked position. Inspecting the coupling carefully is what protects a Maryland combination driver from a trailer separating at speed, so these questions dig into the specifics.

State exams differ in how many combination questions they contain, so let your current Maryland CDL Manual give you the exact figure. Rehearse this coupling-inspection drill until you could run the check in your sleep, and the rest of your CDL combination review will feel routine.

Keep going:

• Maryland CDL Combination Practice Test
• Maryland CDL Combination Practice Test 2
• Maryland CDL Combination Practice Test 3
• Maryland CDL Combination Vehicles Test
• Maryland CDL Practice Test
• Maryland Air Brakes Practice Test
• Maryland CDL Pre-Trip Inspection Practice Test
• Maryland Hazmat Practice Test
• Maryland Class A CDL Practice Test
• Maryland CDL Practice Test

Every question traces back to the Maryland CDL Manual - skim the right-of-way and signs chapters before your retake.