Maryland Pre Trip Inspection Test
You'll walk around your truck pointing out parts to a Maryland MVA examiner — this test preps you for exactly what they look for on I-95.
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This is the Pre-Trip Inspection test for Maryland CDL applicants. 25 questions, 30 minutes, 80% to pass — start practicing now.
Key Topics
- •Brakes and air system
- •Lights and reflectors
- •Coupling and tires
About the Maryland Pre Trip Inspection Test
Topics Covered
- ✓Brake system inspection — Maryland's stop-and-go traffic on the Beltway means your brakes can't fail. You need to know slack adjusters, air loss rates, and low-air warnings.
- ✓Lighting and reflectors — Fog on US-50 and rain on the Eastern Shore make visibility critical. Know every light and reflector location.
- ✓Air brake system checks — You'll be on I-95 with heavy traffic; air loss can't be ignored. Know the governor cut-in and cut-out pressures.
- + 3 more topics
📘 Study Tips & State Info
Maryland examiners are sticklers for detail. They don't just want you to point at a part — they want you to say what you're checking for. "No cracks, no cuts, no frays" is the magic phrase for hoses and belts. Practice saying it out loud. Same for tires: "No bulges, no cuts, enough tread."
Air brake questions are the most common ones students miss. You need to know the exact numbers: compressor cuts in at 100 psi, cuts out at 120-130 psi. Low-air warning activates at 60 psi. Brakes lock up around 20-45 psi. Maryland examiners will ask these numbers. Memorize them.
Don't skip the coupling section. The Port of Baltimore moves thousands of containers a day, so examiners know that drivers often skip steps. Know the sequence: inspect fifth wheel, back under, check connection, secure air and electrical lines, test tug. Each step has specific checks. The test will ask about them.
Maryland MVA handles all CDL testing. You'll find CDL knowledge tests at select MVA offices: Glen Burnie, Frederick, Bel Air, Waldorf, and a few others. You need an appointment — walk-ins aren't guaranteed. Book online at the MVA website. Bring your valid driver's license, Social Security card, proof of residency, and a current Medical Examiner's Certificate.
The knowledge test fee is $50 for the first attempt, $25 for retakes (as of 2026 — check the MVA site for updates). You can take the General Knowledge test and any endorsements in one appointment. The pre-trip inspection questions are part of General Knowledge, so you don't take a separate test for it. But this practice test focuses specifically on those inspection questions.
One thing that catches people: Maryland requires you to have a Commercial Learner's Permit (CLP) for at least 14 days before you can take the skills test. Use that time to practice the actual pre-trip inspection on a truck. The written test is theory; the skills test is where you walk around and show you know your stuff.
About the Maryland Pre Trip Inspection Test
Every Maryland CDL applicant has to pass the General Knowledge written test, and a big chunk of that is pre-trip inspection. You can't skip it. The MVA examiners want to know you can spot a brake problem before it kills someone on the Baltimore Beltway. This practice test covers the same material they'll ask you.
Maryland's roads are a mixed bag. You've got the Port of Baltimore with container chassis stacked high, I-270 with its morning fog, and US-50 where the Eastern Shore fog can drop visibility to zero. Your pre-trip inspection has to account for all that. The written test checks if you know what to look for on your rig before you hit any of those roads.
The test is 25 multiple-choice questions. You need 20 right — that's 80%. You'll get 30 minutes, which is plenty if you know the material. Don't rush. Read each question carefully. Some ask about the exact wording from the Maryland CDL manual.
We built this practice test to match what Maryland examiners actually ask. Not generic stuff. Real questions about air brake buildup times, coupling procedures, and lighting requirements that matter when you're hauling through a snowstorm on I-95.
Topics Covered
Study Tips
Maryland examiners are sticklers for detail. They don't just want you to point at a part — they want you to say what you're checking for. "No cracks, no cuts, no frays" is the magic phrase for hoses and belts. Practice saying it out loud. Same for tires: "No bulges, no cuts, enough tread."
Air brake questions are the most common ones students miss. You need to know the exact numbers: compressor cuts in at 100 psi, cuts out at 120-130 psi. Low-air warning activates at 60 psi. Brakes lock up around 20-45 psi. Maryland examiners will ask these numbers. Memorize them.
Don't skip the coupling section. The Port of Baltimore moves thousands of containers a day, so examiners know that drivers often skip steps. Know the sequence: inspect fifth wheel, back under, check connection, secure air and electrical lines, test tug. Each step has specific checks. The test will ask about them.
Maryland Specific Information
Maryland MVA handles all CDL testing. You'll find CDL knowledge tests at select MVA offices: Glen Burnie, Frederick, Bel Air, Waldorf, and a few others. You need an appointment — walk-ins aren't guaranteed. Book online at the MVA website. Bring your valid driver's license, Social Security card, proof of residency, and a current Medical Examiner's Certificate.
The knowledge test fee is $50 for the first attempt, $25 for retakes (as of 2026 — check the MVA site for updates). You can take the General Knowledge test and any endorsements in one appointment. The pre-trip inspection questions are part of General Knowledge, so you don't take a separate test for it. But this practice test focuses specifically on those inspection questions.
One thing that catches people: Maryland requires you to have a Commercial Learner's Permit (CLP) for at least 14 days before you can take the skills test. Use that time to practice the actual pre-trip inspection on a truck. The written test is theory; the skills test is where you walk around and show you know your stuff.