What to Expect on the CDL Permit Test in California (2025)

The CDL permit test checks your knowledge of safe driving, vehicle controls, and CDL laws. In California, you'll answer multiple-choice questions at a DMV office. Below is a simple breakdown of what to expect, how many questions there are, and how to pass.

You’ll see one question at a time, get instant right/wrong feedback, and read a short explanation after each answer. Use these tests to learn the rules, fix weak spots fast, and build real confidence before you walk into your exam.

CDL Permit Test At a Glance

Questions: 50
Passing score: 80%
Question type: Multiple-choice
Where taken: DMV office
Test fee: $83 (includes permit + license processing)
Retakes: 3 attempts within 12 months

Tip: Details can vary by office. Always confirm with your local DMV.

What you'll see on test day

1) Question types

Multiple-choice questions with one best answer.
Scenarios about safety, vehicle control, and rules.
Some questions test definitions; others test judgment.

2) Topics covered

General Knowledge: safety, inspections, cargo basics.
Air Brakes: systems, warnings, stopping distance.
Combination Vehicles: coupling/uncoupling, sway, rollovers.
Endorsements as needed: Tanker, Passenger, School Bus, HazMat.

3) Time & pacing

Plan for enough time to read carefully. Answer every question. If unsure, mark your best choice and move on.

4) What to bring

Valid ID
Proof of residency (if required)
Application fee payment
Any medical certificate paperwork

Heads up: Requirements can change. Check the DMV page for the latest fees and documents before you go.

Practical tips to pass

Read each question twice. Watch for small wording changes.
Start with General Knowledge. Then study Air Brakes and Combination.
Use practice tests to find weak spots fast.
Don’t leave blanks. Choose your best answer and keep moving.

Pro tip: If two answers look right, pick the safer option. CDL questions reward safety-first thinking.

FAQs

Is the CDL permit test hard in California?

It’s manageable if you study. Expect direct multiple-choice questions covering core safety and rules.

Can you take the CDL permit test online in CA?

Plan for in-person testing at a DMV office. Online options are limited and may not be available in your area.

How many questions are on the CDL permit test?

Expect about 50 questions for General Knowledge. Passing scores are usually 80%.

What happens if I fail?

You usually get multiple attempts within a set period. Ask your local DMV for exact retake rules.