Ontario Class A Licence Test 3
- Perfect for first-time and renewal commercial applicants, and those adding endorsements
- Based on 2024 ON commercial driver's licence manual
- Triple-checked for accuracy
- Updated for October 2024
questions
correct answers to pass
passing score
- Which colour is the trailer supply line?
- Without an oversize load permit, the tallest your vehicle can be is
- What does this sign mean?
- Why are there two service tanks in a modern air brake system?
- When must a carrier check your driving record?
- What does this sign mean?
- When you couple your tractor to a trailer, which of the following is most important?
- What does this sign mean?
- As a commercial driver, you are expected to practice
- How can the trailer hand valve be used?
- What does this sign mean?
- The braking distance of a tractor-trailer is roughly ________ as the braking distance of a car.
- What are the four factors that affect a commercial vehicle's stopping distance?
- What does this sign mean?
- What is a "glad hand"?
- In your daily log, you must record which of the following?
- What does this sign mean?
- What does this sign mean?
- You're driving on a curve to the left. How can you ensure that your trailer's wheels stay in your lane?
- What is the wheelbase of a vehicle?
- What is a commercial vehicle's danger zone?
- To inspect an air brake system, you should wear
- While driving your truck, you see an open truck inspection station. What should you do?
- What does this sign mean?
- Hours of service regulations let a driver choose one of two cycles
- What function does the alcohol evaporator perform?
- If your vehicle is equipped with antilock brakes (ABS), how should you brake in an emergency?
- When must you chock the wheels of your stopped vehicle?
- How should a load that projects more than 1.5 metres from the rear of the vehicle be marked?
- Which gear should be used to initiate the movement of a loaded tractor-trailer?
- You're about to uncouple your tractor from the trailer. After you secure the vehicle, how should you lower the trailer landing gear?
- When do you need to have the daily inspection report and associated schedule in the vehicle?
- Which of these factors does NOT influence the maximum allowable gross weight of a commercial vehicle?
- What is the correct instruction when you see this traffic sign?
- What could be the negative effect of continuously letting the clutch slip?
- What should you do when climbing a steep hill and your speed is considerably reduced?
- Which of these is classified as a minor defect during a daily truck inspection?
- What's the maximum permitted driving duration in a single day?
- What should you do to successfully navigate a turn while driving?
- What should you do after performing a daily inspection and finding no defects?
- What is the primary function of a central apron in a roundabout?
- When can you operate the vehicle after identifying a major defect during inspection?
- Where might you notice excessive lash or free play indicating a defect?
- What does this traffic sign indicate?
- What is the valid duration for a daily inspection report?
- After you start to transport a load, when should you check and adjust the load securement?
- Who is responsible for making sure that cargo is safely secured during transport?
- What is an essential safety practice when driving on highways with multiple lanes?
- What is essential to aid you in doing a daily vehicle inspection?
- What does gross weight of a commercial motor vehicle refer to?
- The presence of polished or shiny areas at the flanges or clamps of spoke wheels indicates that