CDL permit: air brakes first

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The air brake checks, coupling order and following-distance rule the permit test keeps asking, with quiz and audio.

The CDL manual is 180 pages. The permit test keeps asking the same things.

The air brake check sequence and the leak rates are the questions everyone fails. Get these right and the rest is reading.

Air loss rate, engine off — single vehicle

Less than 2 psi in one minute. More means a leak: fail the vehicle, fix it before driving. Combination vehicles: 3 psi.

When do you use the trailer hand valve?

The hand valve is a test tool, not a driving brake — using it on the road can jackknife you. A classic trap question.

Inspect, back up slowly, lock the fifth wheel, tug test, then lines and landing gear. The test asks for the order.

Following distance: 60-foot truck at 50 mph

6 seconds — one second per 10 feet of vehicle, plus one over 40 mph. The formula shows up on every exam.

Drive the manual before you drive the truck.

Paste your own study material and Claude writes the deck on your phone.

With Pablitos, any document — or anything you ask Claude or ChatGPT — becomes training you will actually do, in seconds.

Certifications and licences — CompTIA, NCLEX, the DMV test, as daily practice
Job interviews — paste the posting and walk in knowing what they will ask
Exams — SAT vocabulary, the citizenship questions: the parts that repeat
Homework help — explain it without just giving the answer

Built from a state CDL manual, dropped into Claude

Quiz answers, audio and your progress live in the app — where the AI adapts the deck to your own situation.

$12.99 once. Yours forever.

~~$19.99~~Launch price.