Commercial test 4 1 / 39 Which of the following are advantages of a dual air brake system? If one system fails, you'll still be able to stop. Brake lag time is reduced. Only one reservoir needs to be maintained. All of the above are advantages. 2 / 39 When a school bus driver turns on the bus’s alternating flashing red lights, other drivers must stop if they are approaching the bus from the rear. slow down and pass the school bus cautiously. stop if they are approaching the bus from either direction. stop if they are approaching the bus from the front. 3 / 39 You may be fined as much as _______ for driving a vehicle whose brakes are out of adjustment. $200 $500 $2,000 1,000 4 / 39 How can you ensure your safety while driving through construction zones? Slow down only in the daytime. Switch lanes frequently to avoid any obstructions. Increase your speed to quickly pass through the area. Maintain a safe distance from construction personnel and machinery. 5 / 39 Before you may apply for a commercial driver’s licence, you must already hold which class of driver's licence? Either Class 5 or Class 7 Class 6 Either Class 5 or Class 6 Class 5 6 / 39 What determines which truck should use a turnout on a narrow road? The length of the truck The load of the truck The speed of the truck The experience of the driver 7 / 39 What is the optimal operating temperature for most brake components? 120° C 100° C 80° C 40° C 8 / 39 Does the Anti-lock Braking System (ABS) in your vehicle help you come to a stop sooner? Yes, always. No Yes, but only in wet conditions. Yes, but only in dry conditions. 9 / 39 If your vehicle is going to transport logs, which of the following are true? (a) The vehicle must be equipped with a means of cradling the logs. (b) You must inspect the load before you enter a public road from a private road. (c) The vehicle must be equipped with either tiedowns on the logs or a means of cradling the logs. (a) and (b) are true. 10 / 39 If your brakes get wet, what should you do? Brake hard whenever possible. Don't use the brakes for a short distance. Pump the brakes. Apply slight pressure to the brakes for a short distance. 11 / 39 What should drivers do continuously if their danger zone becomes occupied? Constantly plan an escape route. Immediately stop the vehicle. Repeatedly honk the horn to alert others. Increase speed to get out of the danger zone quickly. 12 / 39 What should you do to prevent a vehicle fire? Maintain proper tire pressures. Never start a vehicle with a fuel leak. Make sure your vehicle's brakes are fully released while your vehicle is moving. Do all of the above. 13 / 39 Which of the following factors determine the sharpness of your large vehicle’s turn? (a) Turning radius (b) Off-tracking (c) The weight of the load (a) and (b) 14 / 39 What are the articulation points of a truck? The blind spots on either side of the vehicle The vehicle's weight and axle limits The points at which the vehicle pivots The points at which the brakes stop functioning 15 / 39 What is the air brake endorsement for industrial roads called? (a) Off-highway (b) On-highway (c) Industrial (a) and (c) 16 / 39 What are the main components of a simple, basic air brake system? Air lines, compressor, foot valve Air lines, foot valve, foundation brakes, relay valve, reservoir Air lines, compressor, foot valve, foundation brakes, governor, reservoir Air lines, foundation brakes, governor, reservoir, spring brake modulator 17 / 39 Before you may obtain a Class 1, 2, or 4 driver’s licence, you must be at least ____ years old. 20 18 19 16 18 / 39 To perform an emergency stop with ABS brakes, you should do nothing and let the ABS system pump the brakes. apply full brake pressure. pump the brakes manually. gradually build up brake pressure. 19 / 39 Vehicles carrying cargo must meet which of the following requirements? (a) Motor Vehicle Act Regulations (b) North American Standard on Cargo Securement (c) The Industrial Roads Act Both (a) and (b) 20 / 39 For any coupling device other than a fifth wheel, the drawbar or other connection between the motor vehicle and the trailer may not be longer than _______ unless you’re towing a pole trailer. 3 metres 5 metres 4 metres 2 metres 21 / 39 Just before your vehicle comes to a full stop, you should __________ to prevent your vehicle from jerking back. shift into a lower gear. reduce pressure on the brake pedal. brake hard one more time. pump the brakes. 22 / 39 When a tire is underinflated, (a) it can become excessively worn on the outer edges of its tread. (b) it can become excessively worn in the centre part of its tread. (c) it has a greater chance of hydroplaning. both (a) and (c) can happen. 23 / 39 You're driving a vehicle equipped with air brakes. If the low air pressure warning signal comes on, what should you do? Drive slowly with extreme caution. Pull over and stop. Wait for the emergency brakes to come on. Report the problem after you've completed your trip. 24 / 39 What is a rough guide for spacing tiedowns to secure your load? Use one tiedown for every 2.5 metres of a load. Use two tiedowns for every 3.04 metres of a load. Use two tiedowns for the first 3.04 metres of a load and one tiedown for every 3.04 metres thereafter. Use two tiedowns for the first 2.5 metres of a load and one tiedown for every 2.5 metres thereafter. 25 / 39 What action can help minimize your danger zone while driving? Using your phone while driving. Slowing down. Cutting corners. Accelerating to pass other vehicles. 26 / 39 You must perform an en-route inspection of your vehicle's cargo securement system at least once every 240 km. 360 km. 500 km. 150 km. 27 / 39 Where is a single-unit (straight) truck’s central weight distribution point? Midway between the tailgate and the rear of the cab Just in front of the rear axle Over the rear axle Over the front axle 28 / 39 What should you do if you can't keep up with the traffic flow? Travel in the right lane. Increase your speed to match the traffic flow. Pull over to the shoulder and let other vehicles pass. Merge to the left lane. 29 / 39 What special problems does transporting livestock present? (a) The noises that the animals may make can distract you from driving. (b) The animals may lean on curves. (c) The animals may move around in the trailer. Both (b) and (c) are problems. 30 / 39 If tire tread damage is longer than _______, the tire should be considered defective. 1.5 cm 2.5 cm 4.5 cm 3.5 cm 31 / 39 Unless your vehicle has antilock brakes (ABS), using light brake pressure on an icy road will help prevent your vehicle from skidding. help prevent your wheels from locking up. allow you to control your speed. do all of the above. 32 / 39 According to the British Columbia Driving Commercial Vehicles Manual, torque is the ability of the engine to move the vehicle. the same as horsepower. used to develop speed. the same as rpm. 33 / 39 To obtain a commercial driver’s licence, which of the following are required? A statement from you about your pre-existing medical conditions 1%A statement from your doctor about your health A statement from your doctor about your health A vision test All of the above 34 / 39 Before you couple your tractor to a trailer, which of the following items should you check? The fifth wheel The trailer kingpin and the trailer apron The cargo All of the above 35 / 39 What is the suggested safe following distance when driving large vehicles like buses and trucks at highway speeds? Just a few metres distance. At least three car lengths. At least two seconds behind the vehicle ahead. Not less than five seconds behind the vehicle ahead. 36 / 39 If an air line ruptures between the compressor and the supply reservoir, what will prevent loss of air pressure in the service brake system? Quick release valve Foot valve One-way check valves Reservoir pressure gauge 37 / 39 What should you do if a long downgrade is ahead? (a) Take a detour. (b) Heed "Truck Advisory" speed limits. (c) Pull over and check your brakes. Do both (b) and (c). 38 / 39 What is the wheelbase of a vehicle? The amount of room needed for the vehicle to make a sharp turn The size and weight of the tires The distance between the front wheels and the rear wheels The distance between the left wheel and the right wheel on the same axle 39 / 39 If another driver wants to pass your vehicle, what should you do? Pull over. Signal the driver to pass. Honk your horn. Slow down and leave room. Your score is
