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Based on 2025 NL commercial driver's licence manual
Updated for May 2025
FREE Newfoundland and Labrador Class 4 Licence Test
In Newfoundland and Labrador (NL), all aspiring commercial drivers must obtain a Class 4 licence before they may drive taxis, ambulances, or buses carrying up to 24 passengers. To obtain this licence, you must be 19 or older, hold a valid Class 5 driver's licence for at least one year, undergo a medical examination, pass a written knowledge test specific to Class 4 vehicles, and complete a road test. Digital Government and Service NL implements these requirements to ensure that only the most capable students can operate commercial vehicles. As you begin your learning phase, you should study the official NL commercial driver’s handbook. Please read its contents at least once, and when you're ready, use our NL Class 4 practice test to evaluate your knowledge. This intuitive tool has been designed to closely reflect the content and format of the official exam and adds flexibility to your study routine. You get unlimited attempts and nonstop access to train as often as you want. Since there is no time limit to pressure you, please avoid rushing and only select an answer when you're confident in your choice. Our helpful automated assistant can explain the most complex aspects of commercial driving theory. Since it is present during every training session, you can initiate a conversation at any time and benefit from personalized help. Ask for hints whenever you're stuck on a difficult question or request a real-life example to help you understand the reasoning behind the correct answer.Students with auditory memory greatly benefit from the voice-over function, which uses an artificial voice to read the questions and answer choices aloud. Use it to increase your focus and improve your retention rate. Becoming a safe and responsible commercial driver takes time and effort. With the right tools, your dream career is within reach. Our NL Class 4 licence practice test can be a game changer for students struggling with understanding commercial driving theory, as it uses several educational features that are more efficient than traditional study methods.
Perfect for first-time and renewal commercial applicants, and those adding endorsements
Triple-checked for accuracy
What you need to know
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Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
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When operating an ambulance, when are you allowed to use flashing red lights and sirens?
What does this sign tell you about the road ahead?
What does this sign mean?
What emergency equipment is required in a bus?
What does this sign mean?
Which of the following is not a Class 4 vehicle?
What does this sign mean?
What does this sign mean?
What does this sign tell you?
When is it not necessary to do a shoulder check?
If you're on a 14-day cycle, what is the maximum number of hours you can drive within 14 consecutive days?
If someone is tailgating you, what should you do?
What is total stopping distance?
What does the term "space cushion" mean?
Every written trip inspection report must include which of the following?
If you find a major defect in your vehicle during your pre-trip inspection, when must it be repaired?
What does this sign mean?
What makes the roads extra slippery at the start of a rainfall?
At an intersection with no traffic lights or traffic signs, you should
How often should you look at your mirrors?
A broken centre line on a roadway means that you may
A bus driver should choose a safe driving speed, primarily based on
A controlled railway crossing may have
A light-rail transit (LRT) train may take up to ________ to stop in an emergency.
A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
A tire that is overinflated or underinflated can
A tractor-trailer travelling at high speeds creates air turbulence in which of the following areas?
A vehicle that is twice the weight of a car and is travelling at twice the speed of that car requires how much braking power to stop in the same distance?
A white diamond marking in your lane indicates that
A white X pavement marking in your lane means that
What is a danger zone?
Which dashboard gauge can help you decide when to upshift?
Airbags are
An engine governor is
An octagonal (eight-sided) red sign is
An oncoming vehicle at night has not dimmed its high-beam headlights. What should you do?
Any defect or deficiency that you find on your bus must be
At a railroad crossing, flashing red lights and ringing bells mean that
At a stop sign, you must
At an intersection, the traffic light is red, but a police officer motions you to go through. What should you do?
At what speed should you back up your vehicle?
At which of the following engine speeds should you drive your vehicle?
Before you drive your vehicle, you should
Before you drive, you should
Before you enter a curve, what gear should you select?
Our commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
Written by Andrei ZakhareuskiUpdated over a week ago
At Tests.ca, we understand the importance of reliable and accurate practice tests to help you prepare for your driver's knowledge exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
Alignment with Official Driving Handbooks: Every question we develop is based on the most recent version of each province's official driving manual. Our team regularly monitors each province's official website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration: We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation: Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
Rigorous Review Process: Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
User Feedback Mechanism: After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
Responsive Updates: In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the provincial government manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the government publishes them.
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