# CDL General Knowledge Practice Test — 60 Questions (Free 25-Question Version)

> CDL General Knowledge practice test — free 25-question diagnostic, no signup; full mock: 60 timed questions, 75 minutes, 70% readiness target, topic scoring — then waitlist for the planned 60-card Anki. Most state GK forms are ~50Q / 80%; this is a longer diagnostic. Independent — not a DMV/FMCSA exam.

UniPrep2Go's free CDL General Knowledge practice test is a 25-question, 31-minute timed diagnostic with a free topic report and answer review — no email, no account. The full mock is 60 questions / 75 minutes on the $5 UniPrep2Go Mock Pass (5 attempts on any mock).

## What is the CDL General Knowledge exam?

The CDL General Knowledge exam is the written knowledge test required before you can get a Commercial Learner’s Permit (CLP) and later a Commercial Driver’s License (CDL) for Class A or Class B vehicles. It covers vehicle systems, safe driving, cargo, and hours-of-service style rules from the FMCSA Commercial Driver’s Manual — not the skills/road test. States administer the test through their DMV or equivalent; you typically must pass General Knowledge (and any required endorsement knowledge tests) before scheduling skills testing.

- Administered by: State DMV / licensing agency, using FMCSA Commercial Driver’s Manual topics
- Official format: Written (or computer-based) multiple-choice knowledge test. Most states use ~50 questions with an 80% pass (40 correct); confirm length, time, and cut score with your state DMV CDL manual. Skills/road testing is separate after you hold a CLP. Endorsement knowledge tests (Air Brakes, Combination, HazMat, etc.) are additional sittings.

## Official certification resources

Topic weights and timing follow published State DMV / FMCSA outlines. Verify fees and scheduling on the official site — UniPrep2Go questions are independent study aids.

- [FMCSA — Commercial Driver’s License](https://www.fmcsa.dot.gov/registration/commercial-drivers-license)
- [Find your state CDL resources](https://www.fmcsa.dot.gov/registration/commercial-drivers-license/drivers)

## Product facts

- Slug: cdl-general-knowledge-readiness-check
- Practice test label: CDL General Knowledge practice test
- Vertical: transport (https://uniprep2go.study/mock-exams/v/transport)
- Family: cdl
- Linked deck: cdl-general-knowledge-anki-deck
- Linked deck status: planned
- Linked deck checkout: waitlist / not on sale yet
- Status: live
- Access mode: free_timed_mock
- Questions: 60
- Duration: 75 minutes
- Free version: free 25-question / 31-minute diagnostic (1 attempt, no signup); full 60-question mock on Mock Pass
- Free question count: 25
- Free duration: 31 minutes
- Pass threshold: 70%
- Price: Free 25-question diagnostic, then $5 for 5 full attempts
- Pricing note: Your first UniPrep2Go attempt is free: a 25-question timed diagnostic on any exam (Exam or Learn mode, no signup) with the full topic report. Full-length mocks and retakes run on a $5 UniPrep2Go Mock Pass (Gumroad license key): 5 attempts on any mock. After your score, join the linked Anki deck waitlist for the .apkg when it ships.
- Mock Pass: $5 for 5 attempts on any mock — https://pixidstudio.gumroad.com/l/uniprep-mock-pass
- Exam body: State DMV / FMCSA
- Search aliases: CDL, CDL GK, CLP, commercial driver
- Landing page: https://uniprep2go.study/mock-exams/cdl-general-knowledge-readiness-check
- Facts JSON: https://uniprep2go.study/api/mock-exams/cdl-general-knowledge-readiness-check

## About this free practice test

A timed FMCSA-handbook-topic diagnostic across vehicle systems & inspection, safe driving & space management, cargo securement & weight, and emergencies/hours/rules — then join the planned 60-card Anki waitlist. Typical state General Knowledge sittings are ~50 questions / 80% (40 correct); this check is a longer 60Q / 75 min diagnostic (free 25-question version) — not a DMV form, not the skills/road test, and not endorsement knowledge tests (Air Brakes, Combination, HazMat, etc.).

- Built for: CLP / Class A–B applicants who want a free timed General Knowledge baseline before studying their state CDL manual and booking the DMV knowledge test.
- Topics: Vehicle systems & inspection, Safe driving & space management, Cargo securement & weight, Emergencies, hours & rules

## Report features

- Pass/no-pass readiness verdict
- Weighted topic diagnosis
- Pacing analysis
- Full answer review with explanations
- Linked Anki deck repair plan for no-pass or borderline results

## Question source

Original UniPrep2Go local bank aligned to FMCSA handbook topics.

## Structure

- Vehicle systems & inspection: 15 questions, target 70%
- Safe driving & space management: 15 questions, target 70%
- Cargo securement & weight: 15 questions, target 70%
- Emergencies, hours & rules: 15 questions, target 70%

## Official source note

Most state CDL General Knowledge sittings are ~50 questions / 80% (40 correct) from the FMCSA Commercial Driver’s Manual — verify your state DMV. This UniPrep check is a longer 60Q / 75 min diagnostic. Skills/road testing and endorsement knowledge tests (Air Brakes, Combination, HazMat, etc.) are separate.

## CDL General Knowledge (Commercial Learner’s Permit / CDL knowledge test) exam facts

- Exam name: CDL General Knowledge (Commercial Learner’s Permit / CDL knowledge test)
- Administered by: State DMV / licensing agency (FMCSA Commercial Driver’s Manual topics)
- Questions: Typically ~50 questions in most states (verify your state CDL manual)
- Scored questions: All items typically scored (state-specific)
- Time: Often about 60 minutes where published — many states do not publish a hard limit; verify locally
- Passing score: Typically 80% (40 of 50 correct) in most states — confirm with your DMV
- Delivery: Written or computer-based at state licensing offices / approved vendors
- Content outline effective: Current FMCSA / state CDL manual cycle — download your state’s handbook
- Verify current details at: https://www.fmcsa.dot.gov/registration/commercial-drivers-license
Official sources:
- FMCSA — Commercial Driver’s License: https://www.fmcsa.dot.gov/registration/commercial-drivers-license
- Find your state CDL resources: https://www.fmcsa.dot.gov/registration/commercial-drivers-license/drivers

## CDL General Knowledge (Commercial Learner’s Permit / CDL knowledge test) knowledge domains and weights

| # | Knowledge domain | Weight |
| --- | --- | ---: |
| 1 | Vehicle systems & inspection | Handbook section — state manuals vary |
| 2 | Safe driving & space management | Handbook section — state manuals vary |
| 3 | Cargo securement & weight | Handbook section — state manuals vary |
| 4 | Emergencies, hours & rules | Handbook section — state manuals vary |
## What changed in the current exam cycle

- Most states still use ~50 General Knowledge questions with an 80% pass — a minority differ; always check your state CDL manual.
- ELDT theory/behind-the-wheel training rules apply before skills testing for many first-time CDL applicants — separate from this knowledge mock.
- Air Brakes, Combination Vehicles, and endorsements (HazMat, Passenger, School Bus, Tank, Doubles/Triples) are separate knowledge tests.
## High-yield CDL General Knowledge (Commercial Learner’s Permit / CDL knowledge test) facts (commonly tested)

- Typical General Knowledge form: ~50 questions / 80% (40 correct) — verify your state.
- UniPrep2Go’s check is a longer 60-question / 75-minute diagnostic (free 25-question version) with four topic buckets — not a DMV form.
- General Knowledge is not the skills/road test (vehicle inspection, basic controls, road).
- Class A applicants usually also need Combination Vehicles knowledge; air-brake vehicles need the Air Brakes knowledge test.
- Study your state’s official CDL manual first — free third-party banks (CristCDL, US Permit Prep, state DMV practice) win on volume; UniPrep wins on a no-signup timed diagnostic + planned Anki waitlist.
## Common CDL General Knowledge (Commercial Learner’s Permit / CDL knowledge test) candidate questions (Q&A)

### How many questions are on the CDL General Knowledge test?

Most states use about 50 questions with an 80% pass (40 correct). Confirm length and cut score in your state’s official CDL manual / DMV page.

### Is UniPrep2Go’s CDL readiness check the official DMV exam?

No. The 60-question / 75-minute check (free 25-question version) is an independent diagnostic. The matching Anki deck is planned (waitlist). Not a state DMV or FMCSA exam.

### Does this include the skills test or HazMat?

No. This page is General Knowledge only. Skills/road testing is separate after a CLP. HazMat and other endorsements have their own knowledge tests.


## FAQ

### What is the CDL General Knowledge exam?

It is the core written knowledge test for a Commercial Learner’s Permit / CDL. It checks whether you understand commercial vehicle operation, safety, and cargo rules before you take the skills test.

### How many questions are on the CDL General Knowledge test?

Most states use about 50 questions with an 80% pass (40 correct). Some states differ — always verify in your state’s official CDL manual / DMV page. UniPrep’s check is a longer 60-question / 75-minute diagnostic (free 25-question version), not a DMV form.

### Is CDL General Knowledge the same as the skills test?

No. General Knowledge is a knowledge (written) exam. The CDL skills test (vehicle inspection, basic controls, and road test) is a separate step after you get a CLP and practice.

### Do I need HazMat or passenger endorsements for General Knowledge?

General Knowledge is the base test. Endorsements such as HazMat (H), Passenger (P), or School Bus (S) — and often Air Brakes / Combination for Class A — have their own knowledge tests if your job requires them.

### Is there a free CDL General Knowledge practice test?

Yes — your first UniPrep2Go attempt is free, and it can be this one: a 25-question / 31-minute timed diagnostic drawn by the same topic weights, a 70% readiness target, topic scoring, and a full answer review report. No signup, Exam or Learn mode. The full 60-question / 75-minute mock runs on the $5 UniPrep2Go Mock Pass (5 attempts on any mock).

### How many free attempts do I get on this CDL General Knowledge practice test?

One. Your first UniPrep2Go attempt is free: a 25-question timed diagnostic on any exam (Exam or Learn mode, no signup) with the full topic report. Full-length mocks and retakes run on a $5 UniPrep2Go Mock Pass (Gumroad license key): 5 attempts on any mock. Every attempt ends with the full topic report and answer review — the report itself is never paywalled.

### How many questions are on this free CDL General Knowledge practice test?

This UniPrep2Go practice test has 60 multiple-choice questions timed against a 75-minute target. The free first attempt is a 25-question / 31-minute diagnostic with the same topic weights; the full session runs on Mock Pass. Most state CDL General Knowledge sittings are ~50 questions / 80% (40 correct) from the FMCSA Commercial Driver’s Manual — verify your state DMV. This UniPrep check is a longer 60Q / 75 min diagnostic. Skills/road testing and endorsement knowledge tests (Air Brakes, Combination, HazMat, etc.) are separate.

### Why is the free CDL General Knowledge practice test 25 questions?

It is a diagnostic: 25 questions drawn by the same topic weights as the full 60-question mock — enough to rank your weakest topics, short enough to finish in 31 minutes in one sitting. With 1–6 questions per topic it is a quick read, not a verdict; for a full-length timed score, run the 60-question / 75-minute mock.

### What do I get for $5?

The UniPrep2Go Mock Pass: 5 full timed attempts on any UniPrep2Go mock, including the 60-question CDL General Knowledge session, in Exam or Learn mode. It is a one-time Gumroad license key that works on any device — no subscription. Every attempt ends with the full topic report and answer review.

### What score do you need on this CDL General Knowledge practice test?

The pass target on this practice test is 70%. Your report also breaks down performance by topic so you can see weak areas before the real exam.

### Who should take this CDL General Knowledge practice test?

CLP / Class A–B applicants who want a free timed General Knowledge baseline before studying their state CDL manual and booking the DMV knowledge test.

### Where can I take a CDL General Knowledge practice test online?

UniPrep2Go hosts the CDL General Knowledge Practice Test — 60 Questions (Free 25-Question Version) at https://uniprep2go.study/mock-exams/cdl-general-knowledge-readiness-check with a timed runner and full readiness report.

### Is this official exam material?

No. This is an independent readiness diagnostic from UniPrep2Go. It is not official exam-board material and does not award certification or guarantee a passing score.

### What does the report show after the mock?

Your report shows a pass/no-pass verdict with explanation, topic diagnosis, pacing notes, full question review with explanations, and a repair plan that links to the Anki deck waitlist for spaced-repetition practice when the .apkg ships.

### Where do the questions come from?

Original UniPrep2Go local bank aligned to FMCSA handbook topics.

## Disclaimer

This is an independent readiness diagnostic from UniPrep2Go. It is not official exam-board material and does not award certification or guarantee a passing score.