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Free CDL Practice Test General Knowledge 2026

Why 40% of Drivers Fail the Permit Test

The official manual is 180 pages long. Most students fail because they memorize outdated info. Our simulator focuses only on the 2026 active questions.

✓ 2026 ELDT Verified ✓ No Subscription ✓ Lifetime Access

Try the 2026 CDL Practice Test

Can you answer these real questions from the DMV database? Tap any card to practice in the app.

QUESTION 1 OF 50

You are driving a 50-foot truck at 50 mph. What is the minimum following distance?

A. 4 seconds
B. 5 seconds
C. 6 seconds (Tap to verify)
 QUESTION 2 OF 50

What should you do if your brakes fail on a downgrade?

A. Look for an escape ramp (Tap to verify)
B. Pump the brake pedal
C. Turn off the engine

Start with a 10-question diagnostic

Get an immediate score and a weak-area snapshot before deciding whether you need the complete question bank, detailed explanations, and mock exams.

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No download required. Updated for 2026.

What Covers the CDL General Knowledge Exam?

Before you can get any endorsements (like HazMat or Air Brakes), you must pass the CDL General Knowledge requirements. It covers federal regulations that apply to all commercial vehicles.

Vehicle Control

Shifting gears, managing space, and seeing hazards. Controlling skid and recovery.

Inspections

The 7-step inspection method. What to check during a trip and after a trip.

Frequently Asked Questions

How many questions are on the CDL General Knowledge test? ▾
The CDL General Knowledge test consists of 50 questions. You must answer at least 40 correctly (80%) to pass. You have 60 to 90 minutes depending on your state.
Is this CDL practice test updated for 2026 ELDT? ▾
Yes. Our database is updated weekly to reflect the 2026 Entry-Level Driver Training (ELDT) standards. We remove outdated questions to ensure you study current rules.
What is the hardest part of the General Knowledge test? ▾
Most students struggle with Air Brakes and Cargo Securement sections. Our practice test identifies weak spots and gives you more questions on those topics.
Is the CDL practice test general knowledge free? ▾
Start with a free 10-question General Knowledge diagnostic. The $19.99 lifetime plan unlocks 1,500+ questions across all endorsements, mock exams, and weak-area practice.
Can I use this practice test for any state? ▾
Yes. The CDL General Knowledge exam is based on federal FMCSA regulations, which are the same in all 50 states. State-specific rules apply only to the permit process, not the test questions.

General Knowledge

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