Class 4 Mock Test
#1. According to the British Columbia Driving Commercial Vehicles Manual, which dashboard gauge can help you decide when to upshift?
Learn the normal operating rpm range for your vehicle. The tachometer displays the current engine speed in rpm. According to the British Columbia Driving Commercial Vehicles Manual, you should upshift before your engine reaches the top of its normal rpm range.
#2. To drive defensively, you should
Defensive driving is about anticipating potentially dangerous situations in advance, including driving conditions and mistakes made by others, and planning how to deal with those situations. To drive defensively, constantly scan the traffic ahead, behind and to your sides. Look ahead for clues that will tell you whether other vehicles are about to change speed or stop. For example, a green light that is stale may change to red at any moment, so be prepared to stop. Frequent checks of your rear- and side-view mirrors will alert you to drivers who are passing you or getting ready to pass you
#3. 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.
#4. Before you make a left turn in a large school bus, you should do which of the following?
Ever notice how far the rear bumper of a large school bus is from the rear wheels? In a sharp turn, the rear end of the school bus can swing out as much as one metre in the opposite direction, a phenomenon often called “tail swing.” A school bus turning left can collide with a cyclist or vehicle to its immediate right. Before and during a turn, check your mirrors to monitor the tail swing to prevent a collision.
#5. in British Columbia, you must dim your headlights whenever you are within ________ of another vehicle.
In British Columbia, you must dim your headlights to low beam whenever you are within 150 metres of another vehicle, whether you’re meeting or following the vehicle. However, most people have trouble judging distances. Be courteous and dim your lights early.
#6. If a load is supported on rollers, how many of the rollers must be locked?
If a load is supported on rollers, then lock at least one roller to prevent the load from shifting. The load must also have adequate tiedowns.
#7. Which of the following drivers are exempt from wearing seatbelts?
Drivers who get in and out of their vehicles frequently as part of their work may be exempt from wearing seatbelts while they’re driving at 40 km/h per hour or less. Exemptions include inner-city delivery drivers, bus drivers and emergency vehicle drivers.
#8. If a fire starts in your vehicle, you should do which of the following?
If a fire starts under the hood, don’t open it; the additional oxygen will make the fire worse. 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.
#9. 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?
The kinetic energy of a moving object is directly proportional to the object’s weight. A vehicle that is twice as heavy has twice the kinetic energy. The kinetic energy of a moving object increases as the square of the object’s speed. Doubling the speed quadruples the kinetic energy (i.e., multiplies it by four). Brakes use friction to convert the kinetic energy of a moving vehicle into heat. Thus, if you double a vehicle’s weight and double its speed, it will take 2 × 4 = 8 times as much braking power to stop the vehicle.
#10. 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
#11. To turn right in a vehicle with a lot of off-tracking, you may have to
If you swing wide to the left before you turn right, another vehicle may try to pass you on your right while you are turning, which could lead to a collision. Instead, make the right turn with the rear of your vehicle as close to the curb as possible, cross into the oncoming lane if necessary, and turn wide as you complete the turn. This will deny other vehicles enough room on the right to try to pass you.
#12. If you are parking a vehicle on a downgrade, you should
If you’re parking any type of motor vehicle (even a passenger car) on a downgrade, turn your wheels toward the edge of the roadway. If your vehicle’s brakes fail, your vehicle will roll toward the edge of the roadway, not into traffic.
#13. Which of the following are true about brake fade?
Excessive or prolonged braking can cause the brakes to overheat. This can lead to a loss of braking effectiveness, known as brake fade. Your vehicle may take longer to stop. If the brakes continue fading, they may stop working altogether. If you pull over and stop using the brakes, they may recover after they cool down. However, brake fade that continues for a long period can cause changes to the brake linings that will require service.
#14. Which of the following statements about a vehicle's turning radius are true?
The turning radius of a vehicle is the radius of the smallest (tightest) circular path that the vehicle can traverse. A vehicle’s rear tires have a different turning radius than its front tires. You need to know the turning radius of your front wheels to prevent your vehicle’s rear wheels from overrunning the curb or corner when you turn. And knowing your vehicle’s turning radius will help you manoeuvre into or out of a parking space without hitting something.
#15. When driving a school bus, you must NOT do which of the following?
Never do anything that might compromise your passengers’ safety. Don’t open the doors until your vehicle has come to a complete stop, and don’t start moving again until you’ve closed the doors. Don’t refuel the vehicle with passengers aboard, because this could expose them to dangerous fumes or the risk of fire. And of course, always maintain a safe following distance behind the vehicle in front of you.
#16. How are flares, fusees, and reflectors used?
If your vehicle becomes disabled at any time of the day or night, you should place flares, fusees or reflectors in front of and behind your vehicle to warn other drivers. If it becomes disabled at night, you can place red lanterns instead.
#17. While you're driving a school bus, it breaks down on the road. What should you do?
If your school bus breaks down on the road, try to stop the bus in a safe place as far off the roadway as practical. If it’s daylight, place warning triangles 30 metres in front of and behind the bus. In darkness or under other conditions of low visibility, place warning triangles 75 metres in front of and behind the bus. Whether you should evacuate the passengers from the bus depends on whether conditions are safer inside or outside the bus.
#18. If you must drive more slowly than the traffic flow, you should
Slower-moving vehicles should keep right and allow faster vehicles to pass on the left.
#19. 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.
#20. You're driving a taxi, limousine, ride-hailing (e.g., Uber) vehicle, ambulance or van. Under ideal driving conditions, you should maintain a following distance of at least ________ behind the vehicle ahead.
Drivers of passenger cars and light trucks should maintain a following distance of at least two seconds behind the vehicle ahead. So should drivers of taxis, limos, ride-hailing vehicles (e.g., Uber), ambulances and vans.