Commercial test 5

1 / 40

According to the British Columbia Driving Commercial Vehicles Manual, when you drive a large commercial vehicle on a public roadway, you should leave at least ________ of space between your vehicle and other large commercial vehicles.

60 metres

50 metres

40 metres

70 metres

2 / 40

When backing up a large vehicle, you should

use someone as a guide if possible.

sound your horn.

avoid backing into the blind (passenger) side.

do all of the above.

3 / 40

When transporting a large boulder on a flatbed vehicle, you should support it with at least ____ piece(s) of hardwood blocking and secure it with at least ____ chain(s).

2; 2

1; 2

2; 3

2; 1

4 / 40

With progressive shifting, you should do which of the following?

(a) Use only enough torque to get the vehicle moving and then shift into the next higher gear.

(b) Shift at a higher rpm when selecting a higher gear.

Do both (a) and (b).

5 / 40

When driving in the Yukon or Northwest Territories, you may drive no more than ____ hours during your on-duty time.

6 / 40

When driving in the United States, you may drive no more than ____ hours during your on-duty time.

7 / 40

When refuelling your vehicle, you should

keep the nozzle in contact with the fuel filler intake.

smoke a cigarette.

keep the radio on.

keep the engine running.

8 / 40

If you are parking a single-unit (straight) vehicle on an upgrade without a curb, you should

turn the wheels toward the edge of the roadway.

turn the wheels toward the centre of the roadway.

keep your wheels facing straight ahead.

turn the wheels toward either the edge or the centre of the roadway.

9 / 40

How should you drive through a large amount of water on the roadway?

Shift into low gear and avoid the brakes.

Speed up to get through it as fast as possible.

Apply a slight constant pressure to the brake pedal.

Pump the brakes.

10 / 40

When you park a trailer, you can place blocks or pads under the landing gear

to prevent the trailer from rolling.

to let other drivers know that you will be parked there for awhile.

to prevent the landing gear from sinking into soft ground.

to prevent the landing gear from becoming dirty.

11 / 40

To back up with the aid of a guide, what should you do?

(a) Make sure that you can see the guide throughout the manoeuvre.

(b) Position the guide where there is a clear view of your backing path.

Do both (a) and (b).

12 / 40

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

(a) Avoid opening the hood if the fire is under it.

(b) Avoid using water on gasoline or oil fires.

Do both (a) and (b).

13 / 40

Which statement is FALSE about stopping safely?

You must maintain proper following distance

You should look for an escape route if needed

Your brake system must be hydraulically balanced

You must first check your brake temperatures

14 / 40

When parking a vehicle with a two-speed axle, in which range should you leave the axle?

Mid range

Low range

High range

Any range

15 / 40

To park a trailer that is not equipped with spring brakes, you should

apply the trailer service brakes.

apply the trailer service brakes and block (chock) the wheels.

not park on a hill.

leave your four-way flashers on.

16 / 40

To stop quickly in an emergency, what should you do if your vehicle has antilock brakes (ABS)?

Repeatedly brake until the wheels are about to lock, then release.

Take your foot off the brakes once you feel the brake pedal pulsate.

Apply firm, continuous pressure to the brake pedal.

Pump the brakes.

17 / 40

While you're charging the trailer braking system, you find that the trailer brakes do not release. What are some possible causes?

The air lines are crossed.

There is a slow leak in the trailer air brake system.

Brake pushrod stroke is excessive.

All of the above are possible causes.

18 / 40

Sudden steering movements can

3%cause your brakes to stop functioning.

91%cause a rollover.

4%cause your trailer doors to open and your cargo to fall out.

2%cause problems when double-clutching.

cause your brakes to stop functioning.

cause a rollover.

cause your trailer doors to open and your cargo to fall out.

cause problems when double-clutching.

19 / 40

How should you back up a tractor-trailer?

First keep your steering wheel straight. After the trailer has started to back up, turn the steering wheel in the direction you want to go.

First keep your steering wheel straight. After the trailer has started to back up, turn the steering wheel opposite to the direction you want to go.

First turn your steering wheel in the direction that you want to go. Turn your steering wheel the other way after the trailer has started to turn.

First turn your steering wheel in the direction that is opposite to where you want to go. Turn your steering wheel the other way after the trailer has started to turn.

20 / 40

How should you handle driving around a curve?

Take the road conditions into account.

Enter at a speed that won't require you to brake while in the curve.

Apply gradual power while in the curve.

Do all of the above.

21 / 40

If you are parking a truck on a downgrade, you should

keep your wheels facing straight ahead.

turn the wheels toward either the edge or the centre of the roadway.

turn your wheels toward the centre of the roadway.

turn your wheels toward the edge of the roadway.

22 / 40

To drive safely under snowy or icy conditions, what should you do?

Avoid sudden movements of the steering wheel.

Test the steering and brakes for control.

Prevent exhaust fumes from seeping into your cab.

Do all of the above.

23 / 40

When observing a potential hazard on the road while driving, what's a precautionary action you can take?

Honk the horn to alert other drivers.

Change lanes immediately.

Remove your foot from the accelerator and lightly touch the brake pedal.

Accelerate and pass the potential hazard.

24 / 40

When a vehicle's speed is doubled, how much more stopping power is required?

5 times the stopping power.

2 times the stopping power.

4 times the stopping power.

3 times the stopping power.

25 / 40

If you are parking a tractor-trailer on an upgrade, you should

turn the wheels toward either the edge or the centre of the roadway.

turn the wheels toward the edge of the roadway.

turn the wheels toward the centre of the roadway.

keep your wheels facing straight ahead.

26 / 40

When should you check the tire pressures?

When the tires are warm

When the tires are cool

Once a month

At the end of a long trip

27 / 40

When a tractor-trailer is loaded, the cargo should be placed

a little behind the rear axle unit.

a little forward of the rear axle unit.

over the drive axle unit.

midway between the rear axle unit and the drive axle unit.

28 / 40

What can help to decrease fuel usage by up to 30%?

Fast acceleration

Practicing safe driving techniques

Strong braking

Frequently changing lanes

29 / 40

What is the function of retarders in the vehicle?

They provide a sudden boost of power

They reduce the vehicle's gross weight

They provide an auxiliary mechanism to slow down the vehicle

They increase the vehicle's acceleration

30 / 40

When transporting heavy metal coils, you should

prevent them from tipping.

prevent them from moving forward or backward.

use blocking, bracing, friction mats or tiedowns.

do all of the above.

31 / 40

Why might you apply a light drag on the brakes while driving in water?

It can keep water from getting into the brakes

It will heighten your vehicle's visibility to other drivers

It will prevent water from reaching the engine

It will improve your vehicle's speed and momentum

32 / 40

When coupling a tractor to a trailer that lacks spring brakes, you back up the tractor to the trailer. Then you exit the cab and do what?

Check that the centre of the trailer apron lines up with the centre of the fifth wheel.

Check that the trailer apron is touching the fifth wheel directly above the fifth wheel pivot points.

Connect the air lines and electrical cable to the trailer.

Do all of the above.

33 / 40

When driving in the Yukon or Northwest Territories, you can be on duty for no more than ____ hours at a time.

34 / 40

When approaching a narrow bridge from a curve, you should

(a) know how much off-tracking your vehicle displays.

(b) adjust your speed appropriately.

do both (a) and (b).

35 / 40

If both the vehicle's weight and speed are doubled, how much more stopping power is needed?

2 times the stopping power.

4 times the stopping power.

6 times the stopping power.

8 times the stopping power.

36 / 40

In vehicle control systems, what does ATC refer to?

Active Torque Converter.

Automatic Traction Control.

Automated Transmission Control.

Automotive Throttle Control.

37 / 40

As air pressure builds during your pre-trip inspection of the air brakes, the low air pressure warning device should deactivate at

70 psi.

60 psi.

80 psi.

50 psi.

38 / 40

When should you adjust an automatic slack adjuster?

As part of each pre-hill inspection

Every day as part of the pre-trip inspection

Only as an emergency procedure

Only if you're on a long trip out of British Columbia

39 / 40

Which of the following can increase the danger of crossing railway tracks?

The crossing surface is rough.

There is more than one track to cross.

Your vehicle is extremely heavy or long.

All of the above can increase the danger.

40 / 40

What is another term for engine retarders?

Speed regulators.

Engine brakes.

Gear limiters.

Power brakes.

Your score is

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