Manitoba Commercial General Knowledge Test 5 (2025)

Dream of driving a commercial vehicle in Manitoba? This 50-question practice test is designed for 2025 and will help you master the Manitoba commercial driver's licence exam. It closely follows the official commercial driver's guide, offering instant feedback and explanations to better your understanding. A score of 80% or higher is required on the real exam, and this practice version will get you there. Great for new commercial licence applicants, existing licence holders, and those adding endorsements. Good luck and drive safely!

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MB Driver and Vehicle Services

Official Manitoba driver's manual (2025)

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Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated 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.

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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.
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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.
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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.
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Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your driver's knowledge exam.

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List of questions (classic view)

What purpose do runaway lanes serve?
When you park your vehicle on an incline, make sure the vehicle will stay put. Do NOT
Which statement is false? Hydroplaning is still a risk at speeds under 50 km/h if...
Which is a false statement? Concerning railway crossings, it is illegal to...
How wide a gap should trucks maintain when driving in the same direction on an ice road?
You're driving a tractor-trailer. If you apply the trailer brakes without applying the tractor brakes, what could happen?
When inspecting a commercial vehicle with a GVWR of 4,500 kg or higher, make sure the tread depth on the front steering tires is at least
How far away should you stop at a railway crossing?
What should you do first if your vehicle’s rear starts to skid to the left?
Can you explain what is meant by the term 'off track' during a turn?
What is the main purpose of a pilot vehicle?
What is the maximum allowed length of a tractor-trailer with its load included without a permit?
If the trailer weighs less than _______, the coupling device can be attached to the frame on the towing vehicle.
Which of the following statements is incorrect regarding overhead clearances that do not have posted signs?
What is the maximum legal height of a vehicle on a highway without a permit?
Do side-view mirrors and clearance lights that protrude from the side of the vehicle factor into its overall width?
When you determine whether you require an oversize permit, load securement devices are allowed to extend
When attaching a trailer to the tractor, how do you ensure they align correctly?
Before hauling an oversized load, a driver must get
Should a driver abide by all signage that restricts the weight or measurements of loads on any portion of the highway, even with a permit?
If there are two lanes in the same direction and signs indicate that you can turn right from either lane, why is it beneficial to make the turn from the lane further to the left?
What may happen if you make a left turn too soon?
What's the maximum width to which vehicles carrying loose hay, straw, or fodder can be loaded?
Overlength permits can be granted for which of these vehicles?
Why should you keep the front wheels close to the centre line when making a right curve?
On a four-lane divided highway, the pilot vehicle should follow the oversize vehicle or load at what distance?
What is the permitted length of a single vehicle, excluding any load it might be carrying?
When should you begin to signal your intentions to turn?
What is the legal maximum width of a vehicle and its load?
When does the law require the presence of escort vehicles at both the front and rear of the escorted vehicle?
During a left curve, why is it recommended to keep the front wheels close to the right edge of the lane?
If your vehicle lacks an audible automatic backing device, what should you do when coupling a trailer?
When should you perform a button hook turn?
If a coupling device other than the fifth wheel coupler is used, what must also be used to avoid separation if the coupling device fails?
Why are weight limitations placed on certain highways?
On both a two-lane and a four-lane highway, what is the specified distance at which a pilot vehicle should follow or precede an oversized vehicle or load?
Which one of the following options is false for left turns?
According to The Highway Traffic Act and its regulations, a pilot vehicle equipped appropriately should follow vehicles whose total length exceeds what distance?
What is the legal maximum length of a combination, including a truck or car pulling a trailer?
What can cause an axle or set of tires to be overloaded even if the total load is not exceeding the vehicle's total carrying capacity?
When the driver sees signs for either a stationary or portable weigh station, what must be done?
Why is placing a significantly heavy concentrated load against the cab of a truck inadvisable?
What colour is the placard for transporting non-flammable gas?
Which of the following situations does not require the person in charge of dangerous goods to report to a designated authority?
How far away must the red flag at the end of a load be visible from?
Why should a significantly heavy load not be situated at the very rear of the truck?
If the rear overhang exceeds one metre, how large must the red flag be?
What is the role of the consignor for a shipment?
When considering how to load single-unit (straight) trucks, about what proportion of the payload should go on the rear tires?
If a driver loses part of their load and it litters the road, who could be charged?