CDL Prep Test 2026
doubtful ratingA free trainer covering the whole CDL spectrum including endorsements, and many pass GK and doubles/triples on it first try. But overlap with the real exam swings by state and is thin on HAZMAT, with some answers not matching the DMV booklet. Explanations are scarce and question grammar is often clumsy.
The bank is free and broad (GK, air brakes, doubles/triples, tanker, hazmat), but people widely report only a few questions matching the real DMV exam. One HAZMAT taker in South Carolina learned all 119 questions but only 8 of 30 matched. Some answers diverge from the official DMV booklet, and the answer key has errors.
What users love
- Free and covers the full CDL set at once: general knowledge
- Air brakes
- Doubles/triples
- Tanker
- Hazmat. Good for warming up and reviewing before the exam
- Many pass GK first try.
What users hate
- Overlap with the real state test is weak and inconsistent
- Especially on HAZMAT. There are wrong answers
- Lots of grammar slips
- And questions that read like machine translation. Ads pop every 5-10 questions and are easy to mis-tap.
Who it is for
People stacking several CDL endorsements who want a free run through the base before the exam. For safety pair it with the official booklet and double-check disputed answers.
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