CDL Exam Blog
Study tips, exam strategies, and breakdowns of the trickiest CDL Manual sections — straight from the team that builds the practice apps.
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CDL Air Brake Pre-Trip Inspection: The Complete Step-by-Step Walkthrough
A full CDL air brake pre-trip inspection walkthrough — chocking wheels, checking slack adjusters, the five in-cab tests and the final tug test, step by step.
The L.A.B. Air Brake Test Explained: Leaks, Alarms, Buttons (CDL Class A)
Master the L.A.B. air brake check for your CDL Class A pre-trip inspection — every step, every PSI number and the order examiners want, from cut-out to pop-out.
CDL Tanker Test Questions & Answers (2026 Study Guide)
Master the CDL Tank Vehicles endorsement with key 2026 test questions on liquid surge, baffles, outage, center of gravity and safe loading, clearly explained.
CDL Class A Pre-Trip Inspection: The Complete 2026 Walk-Around
A driver-tested walkthrough of the updated CDL Class A pre-trip inspection — what to say, in what order, and how to avoid the mistakes that fail the test.
CDL Air Brake Check Walkthrough: The Final Brake Test, Step by Step
A complete walk-through of the CDL Class A air brake check and in-cab inspection — apply test, low-air warning, spring brake pop-out and the exact PSI numbers.
How to Pass Your CDL on the First Try (4-Week Study Plan)
A realistic 4-week study plan to pass the CDL General Knowledge, Air Brakes and HazMat tests on your first attempt, with daily targets and mock-test thresholds.
CDL Air Brakes Explained: Every PSI Number, Test Step and Trap
A no-fluff guide to the CDL Air Brakes section: the cut-in/cut-out PSI numbers, the 7-step final check, slack adjuster rules and the questions drivers miss.
HazMat Endorsement Guide: Placards, Segregation Tables, and the ERG
Everything you need to pass the HazMat endorsement: the 9 hazard classes, placarding rules, segregation table, shipping papers, the ERG and the TSA check.
The 11-Point CDL Pre-Trip Inspection (Memorise This in Order)
The complete CDL pre-trip inspection checklist in the order the examiner expects: engine compartment, in-cab, light check, walk-around and air brake check.
CDL Classes A, B, C Explained — Which Do You Need?
What's the difference between a Class A, B and C CDL? Weight limits, what each class lets you drive, required endorsements and which fits your career goal.
How to Use CDL Mock Tests: From 60% to 95% in 10 Days
Mock tests are the best CDL study tool if you use them right. A 10-day plan to lift your score from passing to comfortable, plus four mistakes to avoid.
Hours of Service (HOS) Rules Cheat Sheet for 2026
The current FMCSA Hours of Service rules in one cheat sheet: 11-hour driving limit, 14-hour duty window, 30-minute break, 60/70-hour rule and split-sleeper.
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