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

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

Show how to visually inspect the slack adjusters

Demonstrate the proper method for adjusting manual slack adjusters

Demonstrate the proper method of identifying the need for adjustments

None of the above

2 / 30

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

Major

It just needs to be noted

Minor

It's not a defect

3 / 30

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

Cuts

A mix of new and old lines

Abrasions

Improper repairs

4 / 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?

It's not a defect

It just needs to be noted

Minor

Major

5 / 30

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

It just needs to be noted

Minor

Major

It's not a defect

6 / 30

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

Swelling

Proper size

Shrinking

Cracks or breaks

7 / 30

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

Depending on the age of the vehicle

Yes

Depending on the distance travelled

8 / 30

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

Yes

Only for the first 20,000 km traveled

Only for manual

9 / 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

10 / 30

Which is not an inspection method for foundation brakes?

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

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

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

Keep the vehicle in low gear and remove chocks

11 / 30

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

They are doing their job

They are new

None of the above

They are defective

12 / 30

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

Only certified technicians and drivers with an S brake endorsement

Any technician

Every driver

Every vehicle owner

13 / 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

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

Ensure the engine is running

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

14 / 30

Which is not a defect when inspecting brake chambers?

Matched slack-adjuster length on a steering axle

Cracks and non-manufactured holes

Audible air leaks

Mismatched air brake chamber size on steering axle

15 / 30

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

Short air line

Audible air leak

Damaged or worn air line

Improper fittings used to connect or repair an air line

16 / 30

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

It must be pressed in

Nothing

It must be held in position tightly

It must be pulled out

17 / 30

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

Only if held for less than 6 months

Only if they now will be towing tandem trailers

No,

Yes

18 / 30

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

Minor

It just needs to be noted

It's not a defect

Major

19 / 30

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

Major

Minor

It's not a defect

It just needs to be repaired

20 / 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

21 / 30

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

Loose, cut or frayed air compressor drive belt

Loose air-compressor drive belt pulley

Insecure air compressor mounting, bracket or fastener.

Correct length of the belt

22 / 30

Why are automatic slack or brake adjusters used?

To adapt older vehicles to newer trailers

To help match newer brake systems to older trailers

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

None of the above

23 / 30

Do automatic slack adjusters require regular re-adjustment?

Once a month

Every 2 weeks

No if they are working properly

Yes

24 / 30

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

Trailer spring brakes do not hold the vehicle in place

Service brakes are not able to reasonably stop the vehicle

Tractor spring brakes do not hold the vehicle in place

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

25 / 30

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

different size

larger left size

larger right size

same size

26 / 30

Which is not a step when inspecting brake chambers?

Turn off the engine

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

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

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

27 / 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

28 / 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 chamber

Yes

Depends on the size of the pushrod

29 / 30

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

Only by a certified technician

Yes

It's impossible

30 / 30

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

So that the pushrod stroke is more than the adjustment limit

So that the pushrod stroke is double to the adjustment limit

So that the pushrod stroke is less than the adjustment limit

So that the pushrod stroke is equal to the adjustment limit

Your score is

Manitoba Air Brake Test 08

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