Manitoba Air Brake Test 07

Congratulations on taking the free Manitoba Air Brake practice test! This is a crucial step towards becoming a licensed truck or bus driver in Manitoba. By taking advantage of this free resource, you have already demonstrated your commitment to being a safe and responsible driver. It’s important to put in the effort to study and prepare for the official exam, which you can now approach with confidence.

1 / 30

Which is not a step to test the air tank drain valves?

Ensure that the air brake system is below its normal operating pressure range

Locate and drain the supply tank until the valve discharges only clean air

Watch the discharge from each air tank and ensure that all air tank drain valves function properly

Locate and drain the remaining air tanks

2 / 30

Is discharging a significant quantity of moisture from the remaining air tanks, other than the supply tank normal?

Only from the secondary tank

None of the above

Yes

3 / 30

As the brakes wear, what happens to the brake pushrod stroke?

It decreases

It varies

It increases

It remains the same

4 / 30

Should drivers be fully trained in the proper use of brake-stroke indicators?

The maintenance team should

The owner should

Yes

5 / 30

Which statement is false? Long-stroke brake chambers can be identified by these visible characteristics...

The air lines attach to a hexagon port in the brake chamber body.

Markings are placed on the brake chamber body to indicate that it is a long-stroke brake chamber

The air lines attach to a square port in the brake chamber body

A trapezoidal tag is placed under the clamp bolt that indicates the brake chamber's maximum stroke dimension

6 / 30

If the vehicle fails the test when testing the air-tank drain valves, what kind of defect is it?

It is not a defect

Major

Minor

It just needs to be noted, but not reported

7 / 30

When there is a sudden increase in the amount of moisture or oil drained from any tank, does the condition have to be reported?

Yes

Just for the secondary tank

Only for the primary tank

8 / 30

If the vehicle fails the test for system air-loss, it must be reported to the operator and repaired...

Before the vehicle can be operating again

Before the next inspection

Or the driver is fined

Or the owner is fined

9 / 30

The most visible and permanent of the markings used to identify long-stroke brake chambers are...

The square ports

The round ports

The triangle ports

The hexagon ports

10 / 30

Why do brake-stroke indicators include external reference points?

To allow the pushrod to extend

To provide a physical block to shorten the stroke

To provide a visual indication of the applied pushrod stroke

To provide an audible indication of the applied pushrod stroke

11 / 30

Which is not a step for testing the automatic application of the trailer spring brakes?

Pull out the trailer supply valve to close it

If necessary, confirm brake application by attempting to gently move the vehicle forward or backward

Listen for air exhausting, indicating application of the trailer's spring brakes

Ensure the air brake system is below its normal operating pressure range

12 / 30

When testing system air-loss for a tractor and trailer, what is the maximum allowable air loss?

6 psi per minute

4 psi per minute

3 psi per minute

5 psi per minute

13 / 30

When testing system air-loss for a tractor and two or more trailers, what is the maximum allowable air loss?

4 psi per minute

6 psi per minute

5 psi per minute

3 psi per minute

14 / 30

To determine whether brake adjustment is correct, the pushrod stroke must be inspected how often?

Every 12 hours

Every 36 hours

Every 8 hours

Daily

15 / 30

Which is not a step to test trailer service brakes?

Ensure the trailer supply valve is closed

Apply the hand valve

Gently apply engine power in a low gear

Release the hand valve

16 / 30

Which tank should always be drained first to prevent accumulated moisture?

The primary tank

The secondary tank

The supply tank

It doesn't matter

17 / 30

When inspecting the brake adjustment, what should the air pressure be?

Above 90 psi

Between 60 and 70 psi

Above 100 psi

Above 110 psi

18 / 30

If the vehicles fails the test for measuring applied pushrod stroke, which kind of defect is it?

It's not a defect

Major

Minor

It just need to be noted, but not reported

19 / 30

Which is not a step for testing governor operation?

Run the engine until air brake system pressure reaches its maximum level and note the cut-out pressure setting

Release the chocks from the vehicle and release the tractor spring brakes

Observe the primary and secondary air-tank pressure gauges

Fan the brakes to lower the system pressure and note the cut-in pressure setting

20 / 30

To test the automatic application of the trailer spring brakes, brake application may be confirmed by doing what?

Pulling in the lines

None of the above

Gently applying engine power to move the vehicle forward or backward

Aggressively applying engine power to move the vehicle forward or backward

21 / 30

Brake-stroke indicators can also be fitted to what?

The pushrod

The slack adjustor

The brake linkage

None of the above

22 / 30

Brake adjustment limits vary depending on the size and type of what?

The slack adjuster

The air brake chamber

The pushrod size

The vehicle

23 / 30

Which is not a step to test trailer spring brakes?

Close the trailer supply valve and release the tractor spring brakes.

Gently apply engine power in a low gear

Double clutch and move the vehicle forward

There should be no significant movement of the vehicle

24 / 30

Opening the trailer supply valve to fully charge the trailer, then pull out the trailer supply valve to close I so the trailer spring brakes should apply. What else does this?

Disconnecting the trailer discharge line

Disconnecting the trailer air-supply line

Nothing

Disconnecting the trailer emergency line

25 / 30

To test the trailer supply valve, which line is disconnected?

The governor line

The supply line

The discharge line

The delivery line

26 / 30

To test the tractor protection valve, the trailer supply valve must be...

Open

Closed

Repaired

On standby

27 / 30

When oil is found in any other air tank other than the wet tank, what is the problem?

There is no risk

A risk of air brake system contamination

The governor is breaking down

A risk of compressor breakdown

28 / 30

What is the most common size of brake chamber?

29 / 30

Which is not a step to test tractor spring brakes?

Gently apply engine power in a low gear

Ensure the trailer supply valve is open and the tractor spring brakes are applied

There should be no significant movement of the vehicle

Ensure the trailer supply valve is closed

30 / 30

Which is not a step to test service brakes?

Move the vehicle forward in a low gear and at a slow speed

Ensure the trailer supply valve is closed

Apply the service brakes and ensure the brake application stops the vehicle

Ensure the trailer supply valve is open and release the tractor spring parking brakes

Your score is

Manitoba Air Brake Test 07

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