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 does it mean if periodic re-adjustments are required?

None of the above

They are new

They are defective

They are doing their job

2 / 30

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

Improper fittings used to connect or repair an air line

Audible air leak

Short air line

Damaged or worn air line

3 / 30

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

Every driver

Any technician

Only certified technicians and drivers with an S brake endorsement

Every vehicle owner

4 / 30

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

Minor

Major

It's not a defect

It just needs to be noted

5 / 30

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

Yes

Depends on the size of the pushrod

Depends on the size of the chamber

6 / 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

7 / 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

Minor

Major

It just needs to be noted

8 / 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

It just needs to be noted

Major

Minor

9 / 30

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

Correct length of the belt

Loose air-compressor drive belt pulley

Loose, cut or frayed air compressor drive belt

Insecure air compressor mounting, bracket or fastener.

10 / 30

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

It's impossible

Yes

Only by a certified technician

11 / 30

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

Major

It just needs to be repaired

Minor

It's not a defect

12 / 30

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

Major

It's not a defect

Minor

It just needs to be adjusted

13 / 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

same size

larger right size

14 / 30

Which is not a defect when inspecting brake chambers?

Cracks and non-manufactured holes

Matched slack-adjuster length on a steering axle

Mismatched air brake chamber size on steering axle

Audible air leaks

15 / 30

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

No,

Only if they now will be towing tandem trailers

Only if held for less than 6 months

Yes

16 / 30

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

Proper size

Shrinking

Swelling

Cracks or breaks

17 / 30

Why are automatic slack or brake adjusters used?

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

To adapt older vehicles to newer trailers

None of the above

To help match newer brake systems to older trailers

18 / 30

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

Air exhausts from the trailer service line

Trailer supply valve does not open

Trailer supply valve does not close at all

Trailer supply valve closes below 20 psi

19 / 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

20 / 30

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

Tractor spring brakes do not hold the vehicle in place

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

Service brakes are not able to reasonably stop the vehicle

Trailer spring brakes do not hold the vehicle in place

21 / 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

22 / 30

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

None of the above

Demonstrate the proper method for adjusting manual slack adjusters

Demonstrate the proper method of identifying the need for adjustments

Show how to visually inspect the slack adjusters

23 / 30

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

Yes

Depending on the distance travelled

Depending on the age of the vehicle

24 / 30

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

2/3 a turn

1/3 a turn

1/4 a turn

1/2 a turn

25 / 30

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

Ensure the engine is running

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

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

26 / 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

27 / 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 equal to 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

28 / 30

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

Improper repairs

Cuts

Abrasions

A mix of new and old lines

29 / 30

Do automatic slack adjusters require regular re-adjustment?

Once a month

No if they are working properly

Every 2 weeks

Yes

30 / 30

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

Minor

Major

It's not a defect

It just needs to be noted

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Manitoba Air Brake Test 08

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