Shapes and colors: how to read a sign you have never seen
American road signs are a coded language with about a dozen rules. Learn the code and you can answer sign questions about signs you have never laid eyes on.
3 min read
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The air brake test: the numbers and checks you have to know
The air brake section is the most number-heavy test in the CDL stack, and the numbers turn out to be the easy part once you know why each one exists.
3 min read
Right of way: the six situations the test keeps asking about
Right of way is never taken, only yielded. Six scenarios cover almost every question the written test will put in front of you.
3 min read
How many questions is the DMV test? What the rules actually say
The permit test is not one test — it is fifty of them, and the pass mark moves by state. Here are the 6 states whose rules we could verify in the official handbook, and why we refuse to guess at the rest.
3 min read
Which CDL knowledge tests do you actually have to pass?
Class A, Class B, endorsements, restrictions. Here is what each written test covers and which of them apply to the job you actually want.
3 min read
How to pass the DMV written test the first time
Most people fail the permit test for the same three reasons. None of them is intelligence, and all three are fixable in a week.
4 min read
Sections
DMV written test
The permit test, state by state — rules, study plans and what gets asked.
CDL knowledge tests
General Knowledge, Air Brakes and Combination, in plain English.
Road signs
Shape, color and meaning — how to read a sign you have never seen.
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Pass the written test the first time.
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General Knowledge, Air Brakes, Combination — all of it.
