Class 4 Mock Test
#1. What is total stopping distance?
Total stopping distance is the sum of your perception distance (how far the vehicle goes from when you see the hazard until your brain processes it), reaction distance (how far the vehicle goes from when your brain orders your foot to take action until your foot actually starts to brake), and braking distance (how far the vehicle continues to travel once you apply the brake). If your vehicle is equipped with air brakes, there is an additional lag of 0.4 seconds from the time you apply the brake pedal and the time that the brakes engage. The lag distance is the distance your vehicle travels during this lag, and it must be added to the total stopping distance.
#2. 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.
#3. The maximum speed in an alley is _______ unless otherwise posted.
The maximum speed in an alley is 20 km/h unless otherwise posted.
#4. Every motor vehicle must be equipped with at least ______ separate braking systems.
Every motor vehicle must be equipped with at least two separate braking systems. One braking system must be mechanical, such as a ratchet and pawl (notched wheel) mechanism or a spring brake mechanism. The mechanical system should be used as a backup in case the primary braking system fails.
#5. What are some common causes of passenger injuries?
Passengers may be injured if the driver (a) starts or stops too quickly or abruptly, (b) turns too quickly or abruptly, or (c) fails to check on passengers often enough while driving. If the vehicle’s doors are under the control of the driver (as is the case in a bus), passengers may also be injured if the driver opens or closes the doors too quickly.
#6. What does the term "space cushion" mean?
Your space cushion (also called your space margins) is the space between your vehicle and other vehicles on all sides of you. A larger space cushion gives you more time and space to stop safely or bypass a potential hazard.
#7. Why are hours of service regulations in place?
Hours of service regulations are designed to limit the time you can spend driving. Statistics show that a fatigued driver is more likely to become involved in a crash.
#8. At an intersection with no traffic lights or traffic signs, you should
Uncontrolled intersections have no signs or traffic lights. As you approach an uncontrolled intersection, slow down and look out for other road users. Follow the rules of the road to decide when to yield the right-of-way. To yield, slow down and stop if necessary
#9. Why should you use extra caution at railway crossings in rural areas?
For a variety of reasons, you should use extra caution when you cross railway tracks in rural areas. In rural areas, approach grades may be steeper, snow banks may be higher, brush can affect your visibility, there are fewer automated warning systems, and more of these rural crossings may be humpback crossings.
#10. At which of the following engine speeds should you drive your vehicle?
At any given speed, the engine develops both torque and horsepower. Peak torque is found at a lower engine speed than peak horsepower. The vehicle should be operated between the engine’s peak torque and peak horsepower. This range is referred to as the normal operating rpm range of the engine. The engine will lug (strain) if it is operated below peak torque for any length of time.
#11. Drivers on Cycle 2 must not drive after completing ____ hours of on-duty time in 14 consecutive days.
Drivers on Cycle 2 (a 14-day cycle) must not drive after completing 120 on-duty hours in 14 consecutive days. Furthermore, they must take at least 24 consecutive hours off duty prior to accumulating 70 hours of on-duty time
#12. According to the British Columbia Driving Commercial Vehicles Manual, torque is
According to the British Columbia Driving Commercial Vehicles Manual, torque is the ability of the engine to move the vehicle, and horsepower is used to develop speed. More specifically, in an internal-combustion engine, torque is the rotational force that is produced by the engine’s crankshaft.
#13. When can you refuse to transport a passenger?
You may refuse to transport a passenger if your vehicle is already carrying the maximum allowed number of passengers. You may also refuse to transport a passenger who is (a) smoking, (b) using profane or offensive language, or (c) acting in a disorderly manner or being offensive to other passengers. If you order a person out of your vehicle, you must ensure that the person can disembark safely and in a location where the person can reasonably be expected to find alternative transportation.
#14. Who is responsible for making sure that a vehicle's emergency equipment is in working order?
Certain types of commercial vehicles are required to carry certain types of emergency equipment. Your company is responsible for ensuring this emergency equipment is available and in working order.
#15. A tire that is overinflated or underinflated can
Underinflating a tire causes excess wear on the outer edges of its tread. Underinflation also causes increased flexing of the tire, which increases the chance of a blowout or even a fire from excessive heat buildup. Overinflating a tire causes excess wear in the centre part of its tread. Overinflation makes the tire more susceptible to damage from potholes or other road irregularities and increases the chance of tread separation and tire failure.
#16. When you see a potential hazard in your danger zone, you should
A hazard is a road user or road condition (such as a busy intersection) that presents a possible danger. A hazard is not an emergency – but it can quickly become one. When you spot a hazard, prepare to deal with any emergency that might develop. For example, cover the brake pedal with your foot to shorten your reaction time. Keep your eye on that hazard and be ready to act instantly if necessary.
#17. How far back should you stay when following an emergency vehicle with flashing lights and siren on?
When following an emergency vehicle with flashing lights and siren on, stay back about 150 metres. At 90 km/h, this corresponds to a following distance of six seconds.
#18. When transporting persons with disabilities, you should do all of the following EXCEPT
Properly secure wheelchairs, scooters and other mobility aids. If the person with a disability is travelling with a guide dog, you must provide space for the dog in your vehicle so that it will be safe in a collision. Always speak directly to the person with the disability, not to the person’s companion or assistant. And don’t assume the person needs help. Always ask the person before giving help.
#19. What is the wheelbase of a vehicle?
The wheelbase of a vehicle is the distance between the front wheels and the rear wheels. Track width is the distance between the left wheel and the right wheel on the same axle.
#20. A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than
A Slow-Moving Vehicle emblem is an orange triangle with a red border, affixed to the rear of the vehicle. It alerts other drivers that the vehicle travels at 40 km/h or less.