Alberta Air Brake Test 04

Studying the Alberta Driver’s Guide and the Air Brake Manual is recommended. Mastering the concepts of air brakes, such as the main components, signs of brake failure, and maintenance schedule, is crucial. Additionally, simulation tests are incredibly helpful in building confidence and improving test-taking skills. Armed with a solid foundation of knowledge and the practice and experience gained from the simulation tests, you can approach the official exam with a high degree of confidence, knowing that you are well-prepared to ace it.

1 / 30

What's the purpose of the slack adjuster?

None of the above

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

It forces the air intake valve

It automatically adjusts the slack in the brake lines

2 / 30

What does the tractor protection valve do?

Uses supply line pressure to open the service line

Controls the supply line

Closes off the service line

Stops air pressure from entering the lines

3 / 30

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

They become tough to attach to the trailers

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

They become brittle over time

Nothing

4 / 30

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

Air from the service tank is supplied to the service chambers

Nothing can be done

Increase the size of the brake pads

Increase the diameter of the air hoses

5 / 30

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

The psi of the secondary tank

The couplers

The psi of the primary tank

Both parts of the tractor's protection system

6 / 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 primary tank is low in air pressure

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

The secondary tank is low in air pressure

The driver will know if lines were crossed

7 / 30

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

All of the brakes

The trailer brakes

The steering axle brakes

The drive axel brakes

8 / 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

Secondary service circuit failure

Emergency brake failure

Primary service circuit failure

9 / 30

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

Having a load shift in an emergency

Brake failure on the trailers

Brake failure on the tractor

Brake lockup in an emergency application

10 / 30

What does the service/control line do?

None of the above

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

Disconnects the trailer service relays

Blocks the control system

11 / 30

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

3/8 inch (9.5 mm)

1/2 inch (13 mm)

1/4 inch (7 mm)

3/4 inch (19 mm)

12 / 30

What will cause the glad hand couplers to leak?

If the air pressure is too much

If the seals are soft or degraded

If the couplers are not attached securely

If the seals are the wrong size

13 / 30

How are failures in the supply circuit recognized?

During brake failure

During pre-trip inspections

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

After a post-trip inspection

14 / 30

What year did were spring park brakes required on trailers?

1986

1976

1981

1996

15 / 30

What will a failure in the park circuit will cause?

All brakes will lose air pressure

Trailer brakes only will lose air pressure

Parking brakes only will lose air pressure

Park and emergency brake service circuits to lose air pressure

16 / 30

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

The vehicle will be placed out-of-service

The driver receives a ticket

The vehicle must return to the yard

The employer receives a ticket

17 / 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?

The Inform your employer

Drive with caution until more evidence is gathered

Repairs must be made immediately

Add it to the report

18 / 30

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

Pull the trailer air supply valve

Take a longer route to stop the vehicle

Pump the brakes

Apply the mechanical brakes

19 / 30

What is the problem with air pressure park brakes?

None of the above

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

Not enough pressure to park

They are not as tight as spring brakes

20 / 30

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

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

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

The driver should apply the park brakes

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

21 / 30

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

Semi-automatic couplers

None of the above

Dead-end couplers

Full-automatic couplers

22 / 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

23 / 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?

Pull the trailer supply valve

Downshift

Apply the park brakes

Pump the pedal

24 / 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

25 / 30

What do glad hand couplers do?

None of the above

Connects the air lines to the trailer

Connects the air dryer to the air lines

Connects the air lines to the cylinders

26 / 30

During emergency braking, which statement is false?

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

Monitoring air pressure gauges for proper operation

Hold a steady brake application to avoid additional loss of air

Pump the brake pedal until air builds up in the lines

27 / 30

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

None of the above

The ABS will activate

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

The trailer will swing

28 / 30

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

Most of the air supply

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

All of the air supply only

Hydraulic fluid

29 / 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 straightest path

It's the shortest path

No reason

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

30 / 30

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

Straight trucks only

Only if towing tandem trailers

Yes

Your score is

Alberta Air Brake Test 04

About

Practice Tests

Getting a License

Get In Touch