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Class 1 Mock

#1. How can you tell how much air pressure is in the service reservoirs?

The reservoir pressure gauge is connected to the service reservoir. It shows how much air pressure is in the reservoir. In a dual-circuit system, there will be either two gauges, one for each circuit’s service reservoir, or a single gauge with two needles. The gauges are mounted on the instrument panel so you can monitor reservoir air pressures while you drive.

#2. If your cable tiedowns are not marked with their safe working load limits, what should you do?

According to National Safety Code Standard 10 (Cargo Securement), you may not use a tiedown or a component of a tiedown to secure cargo to a vehicle unless it is marked by the manufacturer with respect to its working load limit.

#3. Why should you adjust your head restraint so its top is at least level with the top of your head?

Head restraints (also called headrests) can help prevent soft-tissue injuries such as whiplash. Whiplash is an injury of the neck, head or shoulders after being subjected to a snapping motion. If your head restraint is adjustable (not part of the seatback), adjust it so the top is at least level with the top of your head. Also position your head restraint as close to the back of your head as possible. It may be necessary to adjust your seatback position to do this.

#4. How should you handle driving around a curve?

To handle a curve, slow down before you enter the curve so that you will not need to brake in the curve. Braking in a curve can cause a skid. On slippery roads, slow down even more. Once you are in the curve, accelerate slightly through the curve. This will help you keep control.

#5. What is a runaway lane?

Runaway lanes are located beside the road on some downhill grades. These lanes are there to help slow and stop vehicles if their brakes fail as they are going downhill. Don’t use runaway lanes for any other purpose. However, note that automobiles may also use runaway lanes if their brakes have failed.

#6. If you place a very heavy load on one side of a vehicle, what may happen?

If you place a very heavy load on one side of a vehicle, the brakes may lock the wheels on the underloaded side, which might cause the tires to skid on wet surfaces. It may also cause flat spots on the tires. Furthermore, the vehicle’s centre of gravity (i.e., the midpoint of its weight) will shift toward the side with the load, increasing the risk of a rollover

#7. What is the Gross Vehicle Weight Rating (GVWR)?

The Gross Vehicle Weight Rating (GVWR) is a manufacturer’s rating that defines the combined weight of a vehicle and the maximum load it should carry.

#8. What is a commercial vehicle's danger zone?

The section of road a vehicle travels through before it can stop is called the vehicle’s danger zone because it’s physically impossible for you to stop in time to avoid a collision with any object or person. Reduce your danger zone by slowing down and covering the brake pedal with your foot if you spot a hazard.

#9. What is the licensed gross vehicle weight (GVW)?

Several different terms are used to define a vehicle’s weight. GVW (gross vehicle weight) is the combined weight of the vehicle and its load. GVWR (gross vehicle weight rating) is a manufacturer’s rating that defines the weight of a vehicle and the maximum load that it should carry. Licensed GVW is the combined weight of the vehicle and the maximum load that it is licensed to carry or tow.

#10. Where are a large vehicle's blind spots?

A large vehicle’s blind spots exist to the front, rear, and both sides of the vehicle. If a nearby bicycle or vehicle seems to suddenly disappear, it may have moved into one of your blind spots. Use caution.

#11. How can the trailer hand valve be used?

The trailer hand valve (also known as a spike, a trolley valve or a Johnson bar) controls only the trailer service brakes, not the tractor service brakes. After you have coupled your tractor to a trailer, you can use the hand valve to test the trailer service brakes independently of the tractor service brakes.

#12. If you are unable to keep up with traffic on a steep grade, what should you do?

If you must drive slower than other traffic, use your four-way flashers to alert other drivers, and keep right to let the drivers pass you safely.

#13. Industrial roads do NOT include which of the following?

An industrial road is any road that exists for the transportation of natural resources, machinery, materials or personnel. Industrial roads do not include public roadways or streets; privately owned roads; roads exclusively for utility lines or pipes; or roads and yards within manufacturing plants, industrial sites, storage yards, airports or construction sites.

#14. According to the British Columbia Driving Commercial Vehicles Manual, what is a danger zone?

The section of road a vehicle travels through before it can stop is called the vehicle’s danger zone because it’s physically impossible for you to stop in time to avoid a collision with any object or person. Reduce your danger zone by slowing down and covering the brake pedal with your foot if you spot a hazard.

#15. Before driving down a grade (hill), you should

When you’re about to start down a steep downgrade, release the gas pedal, shift into a low gear, and use engine braking to slow your vehicle. Don’t try to downshift after your speed has already built up. You will not be able to shift into a lower gear then. If you try to downshift an automatic transmission after your speed has already built up, you may damage the transmission.

#16. Who is ultimately responsible for the condition of the brakes on a vehicle?

As the driver, you are required to conduct a pre-trip inspection before driving the vehicle on the road. This includes a full check of the braking system. You must not drive the vehicle if you find problems with the brakes. You may be fined as much as $2,000 for driving a vehicle with defective brakes.

#17. How should you back up a tractor-trailer?

When backing a car, bus or straight truck, you first turn the steering wheel in the direction you want to go. But if you try that with a tractor-trailer, the trailer will pivot on the fifth wheel, and its rear will end up pointing in the wrong direction. When backing a tractor-trailer, you first turn the steering wheel in the direction that is opposite to where you want to go. The trailer will pivot, and its rear will end up pointing in the direction you want to go. Then turn the steering wheel the other way to follow the trailer, and continue backing.

#18. When approaching a narrow bridge from a curve, you should

When entering a narrow bridge with a curved approach, proceed with caution and awareness of the amount of off-tracking your vehicle displays. Adjust your speed and position on the roadway appropriately.

#19. When should you adjust an automatic slack adjuster?

Once properly installed, automatic slack adjusters shouldn’t need manual adjustment. If an automatic slack adjuster strokes beyond the maximum allowed, it usually indicates that there are other brake problems that need to be repaired by a qualified brake service mechanic.

#20. If a fire starts in your vehicle, you should do which of the following?

If a fire starts in your trailer, don’t open the trailer doors; the additional oxygen will make the fire worse. Likewise, if a fire starts under the hood, don’t open it. Putting water on gasoline, grease or oil fires will only spread the fire farther. Instead, use a fire extinguisher that is rated for Class B (flammable liquid) fires. Use enough extinguishing material to put out the flames, but try to keep some in reserve in case the fire flares up again.

#21. What is the purpose of checking your vehicle's slack adjusters?

It’s critical that you inspect your brakes as part of the pre-trip inspection. Brakes that are out of adjustment may fail to stop your vehicle safely, possibly resulting in a dangerous collision. Federal and provincial laws require you to check manual and automatic slack adjusters daily, during the pre-trip inspection. You may be fined as much as $2,000 for driving a vehicle with defective brakes. This includes excessive brake chamber pushrod stroke

#22. Just before your vehicle comes to a full stop, you should __________ to prevent your vehicle from jerking back.

Just before your vehicle comes to a full stop, reduce the pressure you’re placing on the brake pedal. This will prevent your vehicle from jerking back. Practice stopping until you’ve learned how much pressure you need to ease off the brake to smoothly stop where you want.

#23. If a trailer is not equipped with spring brakes and the trailer air brake system leaks, what will happen?

After you’ve parked a trailer equipped with air brakes, some air will slowly leak from the trailer air brake system over time. Eventually, so much compressed air will be lost that the trailer brakes will release. If the trailer doesn’t have spring brakes as a backup, it may roll away unless you chocked (blocked) the wheels beforehand.

#24. You're driving on a curve to the left. How can you ensure that your trailer's wheels stay in your lane?

When you curve to the right, keep the front wheels close to the centre line of the roadway to keep your rear wheels from drifting onto the shoulder or off the pavement. When curving to the left, keep the front wheels close to the right edge of your lane to keep your driver’s-side rear wheels from drifting into the lane to your left.

#25. When must a carrier check your driving record?

Every carrier you work for is required to check your driving record before hiring you and then once a year after hiring you.

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