Manitoba Air Brake Test 08

Remember to take your time and read each question carefully. You’ll be rewarded for your hard work with the feeling of passing with flying colors. Passing this exam not only means that you have met the legal requirements to operate an air brake-equipped vehicle but also demonstrates your dedication to your profession and your commitment to safety on the road. Keep up the great work!

1 / 30

Most manual slack adjusters have a spring-loaded locking sleeve. What must be done so the adjusting bolt can be turned?

Nothing

It must be held in position tightly

It must be pulled out

It must be pressed in

2 / 30

Measuring applied pushrod stroke is a reliable method for inspecting brake adjustment?

It's impossible

Only by a certified technician

Yes

3 / 30

Which is not an inspection method for foundation brakes?

Apply brakes and inspect brake lining to make sure it is contacting the drum

Without brake applied, ensure the lining has adequate thickness, and is not missing, cracked or contaminated with grease or oil

Inspect all foundation brake components to ensure they are functioning correctly, and are not damaged or missing

Keep the vehicle in low gear and remove chocks

4 / 30

When inspecting the air lines for wear or damage, what are you not looking for?

A mix of new and old lines

Abrasions

Cuts

Improper repairs

5 / 30

While inspecting the tractor protection system, which is not a major defect?

Trailer supply valve does not close at all

Trailer supply valve closes below 20 psi

Trailer supply valve does not open

Air exhausts from the trailer service line

6 / 30

When you're inspecting all brake drums and rotors, what are you looking for?

Proper size

Swelling

Shrinking

Cracks or breaks

7 / 30

While inspecting the governor operation, what kind of defect is it when the cut-in pressure is below 100 psi?

It's not a defect

Minor

Major

It just needs to be repaired

8 / 30

Which is not a defect when inspecting brake chambers?

Mismatched air brake chamber size on steering axle

Matched slack-adjuster length on a steering axle

Audible air leaks

Cracks and non-manufactured holes

9 / 30

The brake on each end of an axle should have the ____ air brake chamber to ensure brake forces are balanced.

larger right size

same size

larger left size

different size

10 / 30

While inspecting the governor operation, what kind of defect is it when the cut-out pressure is above 145 psi?

It's not a defect

Minor

It just needs to be noted

Major

11 / 30

What kind of defect is it when the pressure drop exceeds the value specified for the vehicle?

It's not a defect

Major

Minor

It just needs to be noted

12 / 30

Which statement is false? When inspecting air compressors...

Inspect the air compressor drive belt pulley (if equipped) to ensure that it is secure and in good condition

Ensure the air compressor drive belt has proper tension and is secure. Look for cuts or frays

Inspect the air compressor to ensure that it is mounted properly, and all brackets and fasteners are secure

Ensure the engine is running

13 / 30

What are drivers required to do to obtain an S air brake endorsement?

None of the above

Demonstrate the proper method of identifying the need for adjustments

Show how to visually inspect the slack adjusters

Demonstrate the proper method for adjusting manual slack adjusters

14 / 30

Which of the following is not a defect when inspecting air compressors?

Loose air-compressor drive belt pulley

Insecure air compressor mounting, bracket or fastener.

Correct length of the belt

Loose, cut or frayed air compressor drive belt

15 / 30

What kind of defect is it while inspecting the air pressure build-up rate (compressor operation) and the air-pressure build-up time is greater than two minutes?

Minor

It just needs to be noted

Major

It's not a defect

16 / 30

In Manitoba, who can perform brake re-adjustments on manual slack adjusters

Only certified technicians and drivers with an S brake endorsement

Every driver

Any technician

Every vehicle owner

17 / 30

What does it mean if periodic re-adjustments are required?

None of the above

They are new

They are doing their job

They are defective

18 / 30

When performing the tug test, which of the following is not a major defect?

Service brakes are not able to reasonably stop the vehicle

Tractor spring brakes are not release when the service brakes are applied

Tractor spring brakes do not hold the vehicle in place

Trailer spring brakes do not hold the vehicle in place

19 / 30

What is not one of the defects associated with accessible air lines?

Audible air leak

Short air line

Improper fittings used to connect or repair an air line

Damaged or worn air line

20 / 30

Should inspection of brake adjustment be carried out whether automatic or manual slack adjusters are used?

Only for the first 20,000 km traveled

Yes

Only for manual

21 / 30

If the driver already has an air brake endorsement, do they have to do any other testing to get the S endorsement?

Yes

Only if they now will be towing tandem trailers

No,

Only if held for less than 6 months

22 / 30

When brakes with manual slack adjusters are out of adjustment, how must they be re-adjusted?

So that the pushrod stroke is double to the adjustment limit

So that the pushrod stroke is more than the adjustment limit

So that the pushrod stroke is equal to the adjustment limit

So that the pushrod stroke is less than the adjustment limit

23 / 30

Which is not a step when inspecting brake chambers?

Turn off the engine

Inspect the slack-adjusters on the steering axle to ensure they are the same length

Apply service brakes and listen for audible air leaks from the brake chambers

Inspect all brake chambers to ensure there are no cracks or non-manufactured holes

24 / 30

Do automatic slack adjusters require regular re-adjustment?

Yes

Every 2 weeks

Once a month

No if they are working properly

25 / 30

Do the brake chamber on the steering axle have to be the same size?

Depending on the age of the vehicle

Depending on the distance travelled

Yes

26 / 30

When you establish the correct pushrod stroke, how much should you back off the adjusting bolt?

1/2 a turn

1/4 a turn

1/3 a turn

2/3 a turn

27 / 30

Why are automatic slack or brake adjusters used?

To avoid the need to regularly perform manual brake re-adjustment

None of the above

To adapt older vehicles to newer trailers

To help match newer brake systems to older trailers

28 / 30

While inspecting the governor operation, what kind of defect is it when the cut-out pressure is below 120 psi?

It just needs to be adjusted

It's not a defect

Minor

Major

29 / 30

When pushrod stroke exceeds the adjustment limit of the brake chamber, is the brake is out of adjustment?

Depends on the size of the pushrod

Depends on the size of the chamber

Yes

30 / 30

What kind of defect is it when the low-air warning device fails to activate or activates below 55 psi?

It's not a defect

It just needs to be noted

Major

Minor

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Manitoba Air Brake Test 08

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