CDL Help

CDL Practice Test — CDL Help

Pass your CDL exam on the first try.

CDL Help is #1 CDL practice test app for Class A and Class B Commercial Driver’s License preparation. Study 1000+ real-style questions offline, in 10 languages, with detailed explanations for every answer.

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PRACTICE TESTS INCLUDED
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Core CDL Tests:

• General Knowledge — Vehicle rules, safe driving, cargo handling, vehicle inspection. Required for all CDL applicants.
• Combination Vehicles — Coupling/uncoupling, rollover prevention, combination vehicle inspection. Required for Class A.
• Air Brakes — System components, dual air brakes, inspections, proper usage.

Endorsement Tests:

• HazMat (H) — Hazardous materials handling, placarding, and emergency response.
• Tanker (N) — Safe loading/unloading, surge effects, and tanker driving techniques.
• Doubles & Triples (T) — Multi-trailer coupling, safe driving, and inspection.

Bonus: Pre-Trip Inspection guide with detailed walkaround procedures.

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SMART STUDY FEATURES
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• Express Mode (key questions) or Full Mode (all questions)
• Flashcards for quick review and repetition
• Reading Mode to study chapter by chapter
• Text-to-Speech — hear questions read aloud to practice listening comprehension
• Bookmark questions for later review
• Frequently Missed — automatically tracks your weak spots
• Shuffle mode to test true understanding
• Set Your Exam Date — daily study goals with countdown
• Weekly and daily stats — questions answered, accuracy, study time
• Category breakdown — see exactly where you need more practice
• State-specific CDL information for all 50 states
• Detailed explanations based on federal FMCSA regulations

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LEARN CDL + LEARN ENGLISH — AT THE SAME TIME
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Starting in 2026, FMCSA requires all CDL exams to be taken in English only. Roadside inspectors now enforce English proficiency under 49 CFR 391.11 — over 13,000 drivers have already been placed out of service for failing the two-step ELP assessment.

CDL Help is built for this new reality. Every question displays in English alongside your native language — so you learn CDL regulations and build English proficiency together. Toggle between languages with one tap to understand every term, every sign, and every rule — the same way you'll need to on the road.

This isn’t just about passing a test. It’s about keeping our roads safer. When you can read highway signs, communicate with inspectors, respond in emergencies, and complete reports in English — you protect yourself, your CDL, and everyone sharing the road.

Supported languages: English, Spanish, Russian, Chinese, Arabic, Portuguese, Korean, Turkish, Ukrainian, Uzbek.

Start today — download CDL Help and earn your CDL with confidence.

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Recent changes:
- Corrected quiz Q&A: removed duplicate translations/answers; added missing 3rd options in all languages
- More reliable progress/completion/bookmarks; fixed glitches (reordering, lost translations, wrong jumps)
- Final tests expanded + improved: accurate question count, de-dup/shuffle, caps (50 general/30 endorsements); better favorites login check
- Clearer connection banner + auto-reset expired guest sessions
- Guest error reports now send correctly
- Fixed support escalation API