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

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

same size

larger left size

different size

larger right size

2 / 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

3 / 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

It's not a defect

Minor

4 / 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 pulled out

It must be pressed in

Nothing

It must be held in position tightly

5 / 30

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

Major

Minor

It's not a defect

It just needs to be adjusted

6 / 30

Do automatic slack adjusters require regular re-adjustment?

Once a month

No if they are working properly

Yes

Every 2 weeks

7 / 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 are not release when the service brakes are applied

Tractor spring brakes do not hold the vehicle in place

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

Minor

It just needs to be noted

Major

9 / 30

Which is not an inspection method for foundation brakes?

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

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

10 / 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

11 / 30

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

Show how to visually inspect the slack adjusters

None of the above

Demonstrate the proper method of identifying the need for adjustments

Demonstrate the proper method for adjusting manual slack adjusters

12 / 30

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

Ensure the engine is running

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

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

13 / 30

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

Proper size

Shrinking

Swelling

Cracks or breaks

14 / 30

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

1/3 a turn

2/3 a turn

1/2 a turn

1/4 a turn

15 / 30

Why are automatic slack or brake adjusters used?

To adapt older vehicles to newer trailers

None of the above

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

To help match newer brake systems to older trailers

16 / 30

Which is not a defect when inspecting brake chambers?

Matched slack-adjuster length on a steering axle

Mismatched air brake chamber size on steering axle

Audible air leaks

Cracks and non-manufactured holes

17 / 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

Yes

Depends on the size of the chamber

18 / 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 held for less than 6 months

Yes

Only if they now will be towing tandem trailers

19 / 30

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

Only by a certified technician

Yes

It's impossible

20 / 30

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

Yes

Only for manual

Only for the first 20,000 km traveled

21 / 30

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

None of the above

They are defective

They are new

They are doing their job

22 / 30

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

Cuts

A mix of new and old lines

Improper repairs

Abrasions

23 / 30

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

So that the pushrod stroke is equal to the adjustment limit

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

24 / 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

Major

It just needs to be noted

Minor

25 / 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

26 / 30

Which is not a step when inspecting brake chambers?

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

Turn off the engine

27 / 30

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

Every vehicle owner

Only certified technicians and drivers with an S brake endorsement

Any technician

Every driver

28 / 30

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

Improper fittings used to connect or repair an air line

Damaged or worn air line

Audible air leak

Short air line

29 / 30

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

Major

It's not a defect

It just needs to be repaired

Minor

30 / 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 close at all

Trailer supply valve does not open

Trailer supply valve closes below 20 psi

Your score is

Manitoba Air Brake Test 08

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