Alberta Air Brake Test 04

Studying the Alberta Driver’s Guide and the Air Brake Manual is recommended. Mastering the concepts of air brakes, including their main components, signs of brake failure, and maintenance schedules, is crucial.

1 / 30

Is the trailer supply valve part of the tractor's protection system?

Straight trucks only

Only if towing tandem trailers

Yes

2 / 30

Having a very powerful emergency brake, twice as powerful as spring park brakes, what is the risk?

Brake lockup in an emergency application

Brake failure on the tractor

Having a load shift in an emergency

Brake failure on the trailers

3 / 30

Foundation brakes are the mechanical component at the axle ends. If they are not working properly, what happens?

The driver should apply the park brakes

The driver will need to use the emergency brakes to stop the vehicle

The air brake system will not be able to stop the vehicle

The driver should find a place to come to a safe stop

4 / 30

What will a failure in the park circuit will cause?

Trailer brakes only will lose air pressure

Park and emergency brake service circuits to lose air pressure

All brakes will lose air pressure

Parking brakes only will lose air pressure

5 / 30

What year did were spring park brakes required on trailers?

1986

1996

1981

1976

6 / 30

What should glad hand couplers have on them when not pulling a trailer?

None of the above

Dead-end couplers

Full-automatic couplers

Semi-automatic couplers

7 / 30

How are failures in the supply circuit recognized?

During pre-trip inspections

During brake failure

After a post-trip inspection

The air pressure gauges not replenishing when the air pressure gets below the governor cut-in level

8 / 30

During a secondary service circuit failure, which brakes will not apply?

The drive axel brakes

All of the brakes

The trailer brakes

The steering axle brakes

9 / 30

Why do flat deck haulers run the trailer air lines from the back of the frame to the landing leg area of the trailer, rather than from the back of the cab to the nose of the trailer?

It's the shortest path

No reason

Causes less interference from loads that overhang the front of the deck

It's the straightest path

10 / 30

What will enforcement officers during Level 1 Commercial Vehicle Safety Alliance (CVSA) inspection will check?

Both parts of the tractor's protection system

The couplers

The psi of the primary tank

The psi of the secondary tank

11 / 30

What is the minimum lining thickness for brake linings from the Commercial Vehicle Safety Alliance (CVSA) roadside inspection out-of-service criteria?

1/4 inch (7 mm)

3/4 inch (19 mm)

1/2 inch (13 mm)

3/8 inch (9.5 mm)

12 / 30

During a roadside inspection, what happens if the trailer air supply valve does not work properly?

The employer receives a ticket

The vehicle will be placed out-of-service

The driver receives a ticket

The vehicle must return to the yard

13 / 30

What will cause the glad hand couplers to leak?

If the couplers are not attached securely

If the seals are the wrong size

If the seals are soft or degraded

If the air pressure is too much

14 / 30

What can become a problem of a tractor using coiled plastic air lines?

They become tough to attach to the trailers

They become brittle over time

They are often too short and will stretch, causing the lines to shrink in diameter

Nothing

15 / 30

What does the tractor protection valve do?

Closes off the service line

Uses supply line pressure to open the service line

Controls the supply line

Stops air pressure from entering the lines

16 / 30

What do the air lines that connect to the trailer carry?

All of the air supply only

Hydraulic fluid

Most of the air supply

The air supply and the brake signal to the trailer service and park circuits

17 / 30

Pushing in the trailer air supply valve (red button) with the park control valve (yellow button) pulled during these vehicle inspections will allow what to happen?

The driver will know if lines were crossed

The secondary tank is low in air pressure

Any air leaks to be noticed and dealt with before the equipment is put into service

The primary tank is low in air pressure

18 / 30

Rather than using mechanical spring park brakes to hold the foundation brakes on for the emergency brake, what can be done instead?

Increase the diameter of the air hoses

Nothing can be done

Increase the size of the brake pads

Air from the service tank is supplied to the service chambers

19 / 30

If there is any sign that the trailer service brakes are not working and the vehicle must be stopped quickly, what should the driver do?

Downshift

Pump the pedal

Pull the trailer supply valve

Apply the park brakes

20 / 30

What's the purpose of the slack adjuster?

None of the above

It automatically adjusts the slack in the brake lines

It forces the air intake valve

It converts push rod force from the chamber to torque on the s-cam shafts

21 / 30

During emergency braking, which statement is false?

When safely stopped, the vehicle should not be driven until repairs are completed

Pump the brake pedal until air builds up in the lines

Monitoring air pressure gauges for proper operation

Hold a steady brake application to avoid additional loss of air

22 / 30

If the trailer does lose traction during a trailer supply line failure, what happens?

None of the above

It will take three times as long to stop in a straight line

The ABS will activate

The trailer will swing

23 / 30

What can you do to remove contamination before attaching the glad hand couplers?

Blow into the couplers

Nothing

A quick discharge of air pressure before connecting the glad hand couplers to blow contamination out

Shake the couplers for 10 seconds each before connecting the glad hand couplers to shake the contamination out

24 / 30

What does the service/control line do?

Carries the control system from the foot valve to the trailer service circuit relays

Blocks the control system

Disconnects the trailer service relays

None of the above

25 / 30

What do glad hand couplers do?

Connects the air dryer to the air lines

None of the above

Connects the air lines to the cylinders

Connects the air lines to the trailer

26 / 30

If the trailer service brakes are not working and the vehicle must be stopped quickly, what should the driver do?

Apply the mechanical brakes

Take a longer route to stop the vehicle

Pull the trailer air supply valve

Pump the brakes

27 / 30

What is the only tractor air system failure that will cause a service circuit's brakes not to work during a service application?

None of the above

Primary service circuit failure

Secondary service circuit failure

Emergency brake failure

28 / 30

What is the problem with air pressure park brakes?

Not enough pressure to park

Air pressure drains out of the system, the park brakes will release

They are not as tight as spring brakes

None of the above

29 / 30

When would the dash park control valve be used?

Any situation where there is a loss of service brakes and a quick stop is required

Poor road conditions

Parking on a grade

Overnight parking

30 / 30

If there is any doubt about the security of the glad hand couplers during coupling, pre-trip and en-route inspections, what should happen?

Drive with caution until more evidence is gathered

Repairs must be made immediately

The Inform your employer

Add it to the report

Your score is

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Engaging in the Alberta Air Brake Practice Test proves to be immensely beneficial in cultivating both confidence and effective test-taking strategies. By immersing yourself in these practice scenarios, you not only reinforce your foundational knowledge but also gain invaluable experience that mirrors the challenges of the official exam. As you navigate through these realistic assessments, each question and format encountered helps build your familiarity and skill set. With this thorough preparation, you can approach the official exam with a robust sense of confidence, knowing that you have equipped yourself with the necessary tools to excel.

Alberta Air Brake Test 04

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