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 do glad hand couplers do?

None of the above

Connects the air dryer to the air lines

Connects the air lines to the cylinders

Connects the air lines to the trailer

2 / 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

3 / 30

What will cause the glad hand couplers to leak?

If the air pressure is too much

If the seals are the wrong size

If the seals are soft or degraded

If the couplers are not attached securely

4 / 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?

No reason

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

It's the straightest path

It's the shortest path

5 / 30

What is the problem with air pressure park brakes?

Not enough pressure to park

They are not as tight as spring brakes

None of the above

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

6 / 30

During emergency braking, which statement is false?

Pump the brake pedal until air builds up in the lines

Monitoring air pressure gauges for proper operation

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

Hold a steady brake application to avoid additional loss of air

7 / 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?

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

The driver will know if lines were crossed

The primary tank is low in air pressure

The secondary tank is low in air pressure

8 / 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

9 / 30

How are failures in the supply circuit recognized?

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

During pre-trip inspections

During brake failure

After a post-trip inspection

10 / 30

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

The psi of the secondary tank

The psi of the primary tank

The couplers

Both parts of the tractor's protection system

11 / 30

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

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

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

12 / 30

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

Brake failure on the tractor

Brake failure on the trailers

Brake lockup in an emergency application

Having a load shift in an emergency

13 / 30

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

Blow into the couplers

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

Nothing

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

14 / 30

What year did were spring park brakes required on trailers?

1976

1996

1981

1986

15 / 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

Increase the diameter of the air hoses

Increase the size of the brake pads

Nothing can be done

16 / 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

Repairs must be made immediately

Add it to the report

Drive with caution until more evidence is gathered

17 / 30

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

Emergency brake failure

Secondary service circuit failure

Primary service circuit failure

None of the above

18 / 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

Pull the trailer air supply valve

Take a longer route to stop the vehicle

Pump the brakes

19 / 30

What will a failure in the park circuit will cause?

All brakes will lose air pressure

Park and emergency brake service circuits to lose air pressure

Trailer brakes only will lose air pressure

Parking brakes only will lose air pressure

20 / 30

What's the purpose of the slack adjuster?

It forces the air intake valve

It automatically adjusts the slack in the brake lines

None of the above

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

21 / 30

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

They become brittle over time

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

Nothing

They become tough to attach to the trailers

22 / 30

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

Dead-end couplers

Semi-automatic couplers

None of the above

Full-automatic couplers

23 / 30

What does the service/control line do?

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

Disconnects the trailer service relays

Blocks the control system

None of the above

24 / 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

25 / 30

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

The vehicle must return to the yard

The employer receives a ticket

The vehicle will be placed out-of-service

The driver receives a ticket

26 / 30

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

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

The trailer will swing

None of the above

The ABS will activate

27 / 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

Pull the trailer supply valve

Apply the park brakes

Pump the pedal

28 / 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)

3/8 inch (9.5 mm)

1/2 inch (13 mm)

29 / 30

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

Yes

Only if towing tandem trailers

Straight trucks only

30 / 30

When would the dash park control valve be used?

Parking on a grade

Poor road conditions

Overnight parking

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

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Alberta Air Brake Test 04

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