Class 4 Mock Test
#1. When operating an ambulance, when are you allowed to use flashing red lights and sirens?
When operating an ambulance, use flashing red lights to warn other drivers when it is essential that you get the right-of-way. These lights are to be used only when you are responding to an emergency call or transporting a patient. You may drive an emergency vehicle faster than posted speed limits and drive through red traffic lights or past stop signs if you give other drivers the appropriate warning. Use both the siren and the flashing red lights to warn other drivers.
#2. During a pre-hill inspection of a vehicle equipped with hydraulic brakes, you should do which of the following?
Whether your vehicle has air brakes or hydraulic brakes, it is important to make sure that the brakes haven’t overheated. To test hydraulic brakes for leaks, first pump the brakes three times. Next, apply firm pressure to the brake pedal for five seconds. The pedal should not move. If it moves, the brakes may have a leak or some other problem
#3. An engine governor is
Large commercial vehicles are equipped with engine fuel governors. An engine governor (not to be confused with the air compressor governor in an air braking system) acts as an engine speed controller by regulating the amount of fuel going to the engine. A governor also lets you start a vehicle on level ground and on grades without using the throttle.
#4. 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.
#5. 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.
#6. You may let passengers on or off your vehicle on the roadway only where there is at least ________ of road on the left side of your vehicle.
To let passengers on or off your vehicle, stop in a location where (a) there is at least three metres (about 10 feet) of space on the left side of your vehicle so that traffic may pass, and (b) other drivers can see your vehicle from at least 85 metres (285 feet) in front and behind.
#7. 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.
#8. Different-sized tires can
Using tires of different sizes or different types (e.g., radial and bias ply) on the same axle can adversely affect handling, especially when braking.
#9. A taxi driver must test the brakes on the taxi
A taxi driver must test the brakes on the taxi every day as part of the pre-trip inspection of the taxi. The driver must not operate the taxi unless the brakes are safe.
#10. 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.
#11. If you reduce a tire’s air pressure when it is warm,
When tires get warm, the air pressure increases. However, relieving that extra pressure may leave the air pressure too low when the tires cool again. Then the tires will tend to flex more, which can generate so much heat that the tires overheat. If your tires are too hot to touch, stop until they have cooled down.
#12. Which vehicles are required to carry warning devices for use should the vehicle become disabled?
The following commercial vehicles must carry approved warning devices, such as flags, flares, fusees or reflectors: (a) all vehicles with a seating capacity of more than 10 passengers, (b) all commercial vehicles with an overall width of more than 2.3 meters, and (c) all commercial vehicles with a load width of more than 2.3 metres. When parked in the dark, these commercial vehicles must have a minimum of two warning devices.
#13. When can flashing amber lights be mounted on a vehicle?
Flashing amber lights are used on construction vehicles, towing vehicles, tow cars that are attending, snow-removal equipment, sanding equipment, pilot cars, and vehicles that are required by permit to use them, such as some oversize vehicles or vehicles carrying oversize loads. If a vehicle is going to haul an oversize load, the driver must obtain a Commercial Vehicle Safety & Enforcement permit from ICBC. This will allow the driver to mount flashing amber or red lights on the vehicle as well as the appropriate oversize signs.
#14. How do you ease your vehicle into a smooth stop?
To brake, press the brake pedal gradually yet firmly. Just before your vehicle comes to a full stop, reduce pressure on the brake pedal. This will prevent your vehicle from jerking back, enabling you to make a smooth stop
#15. 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.
#16. When approaching an intersection at which you intend to turn, you should
When approaching an intersection, don’t change lanes or pass or overtake other vehicles. If you intend to turn at the intersection, get in the proper lane well before the intersection and signal other drivers to show them you intend to turn. Reduce your speed gradually before entering the intersection.
#17. 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.
#18. Where can passengers keep their baggage?
Passengers may keep their baggage on their laps, under their seats, in overhead racks, or in separate enclosed compartments. Passengers may not place luggage in the aisles or at exits, nor may they place luggage where it would obstruct access to emergency equipment.
#19. When refuelling your vehicle, you should
Small flames or electrical sparks can ignite spilled fuel. While you’re refuelling your vehicle, don’t smoke or run your engine. Keep the nozzle of the fuel hose in contact with the filler pipe. If there is a ground strap, connect it to the filler pipe to reduce static electricity.
#20. Which of the following statements about off-tracking are true?
Off-tracking is the difference between the path of the front wheels and the path of the rear wheels when the vehicle is on a curve. The greater the distance between the front wheels and the rear wheels of the vehicle or combination of vehicles, the greater the off-tracking. When a tractor-trailer turns right, the front end must turn wide enough around the corner so the rear end won’t run over the curb.