Alberta Air Brake Test 08

Practice tests helped build confidence and reduce test anxiety. With the knowledge gained from the practice test and dedicated study and preparation, one can approach the official exam with a higher level of assurance and increase their chances of achieving a positive outcome.

1 / 30

To check the air compressor, run the engine at 1200 rpm and stop the timing when the air pressure is at what rpm?

120 psi

It doesn't matter as long as it's been running for six minutes

90 psi

140 psi

2 / 30

Why should you not mix air line fittings?

Different systems of fittings are not compatible with each other

They fall off

The tractor won't respond well to the changes

The brakes seize up

3 / 30

What causes the cracks in the brake drums to widen, and eventually the drum comes apart?

Centrifugal force on the separated sections

Braking hard too often

Lack of lubricant

When the brakes are pumped too often

4 / 30

What does the phrase 'cammed over' refer to?

Thick brake linings

Missing brake linings

None of the above

Excessively worn brake linings

5 / 30

What happens when there is brake lining failure?

Liquid oozes out of the brakes

It decreases the friction surface area

It causes the brake pads to cease together

Nothing

6 / 30

What is the maximum air pressure leakage allowable during the air systems leaks procedure?

5 psi loss per service circuit for power units

4 psi loss per service circuit for power units

3 psi loss per service circuit for power units

2 psi loss per service circuit for power units

7 / 30

What is the only air line not filled during this air systems leaks procedure?

None of the above

The control line from the hand valve to the double check valve

The lines leading up to the compressor

The lines to the park brake

8 / 30

The CVSA standards require at least how much lining thickness?

3/4 inch (19 mm)

1/2 inch (13 mm)

3/8 inch (9.5 mm)

1/4 inch (7 mm)

9 / 30

Which of the following is not included in the air supply circuit inspection?

The air dryer

The governor

The low air pressure warning device

The air compressor

10 / 30

What does the system leaks procedure check for?

The entire air brake system for pressure leaks through one operation

Leaks with the air lines

Leaks with the air compressor

Leaks with the governor

11 / 30

To check the air compressor, run the engine at 1200 rpm, the low-pressure warning should go out at what rpm?

60 rpm

80 rpm

120 rpm

100 rpm

12 / 30

Within the commercial vehicle industry, what does CVSA refer to?

Commercial Vehicle Secondary Air

Commercial Vehicle Safety Alliance

None of the above

Complimentary Vehicular Safety Act

13 / 30

During a vehicle inspection, how do you confirm that the air tanks are securely mounted?

Push each end

Take a look at the mounts

None of the above

Listen for air leaks

14 / 30

What are cracked brake drums caused by?

A series of overheating and cooling

Poor installation

Poorly maintained brakes

Old brake drums

15 / 30

With regard to brake lining, what causes oil saturation?

Leaking wheel seals

None of the above

Leaking couplers

Oil from the asphalt

16 / 30

To check the air compressor, run the engine at 1200 rpm, then start timing when the air pressure is at what rpm?

50 rpm

70 rpm

It doesn't matter

90 rpm

17 / 30

What causes the clevis pins to work their way out?

When too much air pressure goes through the lines

When the cotter pin sheers

None of the above

Poor adjustments

18 / 30

What happens when the clevis completely separates?

The brakes cease to work when the clevis completely separates

The brakes begin to squeal

The brakes lose power and takes a longer distance to stop the vehicle

The brakes can lock

19 / 30

To check the governor, the cut out should be at what rpm?

120-135 psi

70-85 psi

150-170 psi

80-90 psi

20 / 30

What would you have to do to confirm that the brake chamber is securely installed?

Look on the ground for any loose pieces

Inspect the mounting fasteners and brackets

Test the brakes

None of the above

21 / 30

What is the major issue of a kinked air line?

It can cause the air line to be separated from the brakes

It stretches the air lines

None of the above

It causes reductions in brake performance by restricting or blocking the flow of air pressure

22 / 30

What causes hose bulges within the air lines?

Internal structure failure or excessive chaffing

Debris in the air lines

Too much air being pushed through the lines

Defective couplers

23 / 30

What can foundation brake component failures can result in?

Demerit points

A lot of noise

Anything from a minor application reduction to a complete failure

A suspended driver's license

24 / 30

If there are any corrosion or damage seen in brake chambers or clamp rings, who is qualified to repair it?

Anyone on the maintenance team

It doesn't matter

The driver

Certified heavy equipment technicians

25 / 30

When does a loose air tank cause a failure?

When the psi drop below 20 psi

It doesn't

None of the above

When it separates from the circuit it supplies

26 / 30

What causes chaffed air lines?

Incorrectly secured air lines which rub on nearby parts

Too much air being pushed through the lines

A defect in the air lines

Defective couplers

27 / 30

Can loose brake chambers still apply some application force to the foundation brakes?

Not at all

100%

Yes, depending on how loose they are

No one knows

28 / 30

Air system failures are sometimes dealt with by blocking off the air lines that supply the failed component. Is this acceptable?

Never

If driving at low speeds

Yes, until you get back to the yard

Only if directed by your employer

29 / 30

What happens after a plastic air line is kinked?

It takes time to unkink it

It is permanently damaged and must be replaced

It shortens the hose

None of the above

30 / 30

If there are system failures that affect braking ability, what needs to happen?

Call your employer and ask for direction

Drive at a slower speed

The vehicle must be placed out-of-service until appropriate repairs are made

Brake much sooner so a safe stop can be made

Your score is

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Alberta Air Brake Test 08

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