Saskatchewan Air Brake Test 08

If you pass the practice test with flying colors, you can feel confident in your preparation for the official exam. Passing the official test is crucial to obtain an air brake endorsement on your commercial driver’s license. With the proper preparation, you can earn an endorsement that demonstrates your knowledge and responsibility for safety and regulates your credibility and can improve your employability.

1 / 30

What is referred to as air over hydraulic brakes?

None of these

A braking system that has twin systems to increase braking ability

A braking system where the brakes are applied through air pressure with hydraulic being a back-up

A braking system where the brakes are applied hydraulically but application is made by air pressure

2 / 30

What do you need to check after the slack adjustment?

The cam roller

The push rod travel

The brake cam

The drive sleeve

3 / 30

With ignition key on, fan brakes to lower air pressure, the low warning system should operate at minimum of...

50 psi

60 psi

80 psi

40 psi

4 / 30

What is referred to as a breakaway?

When the trailer becomes disconnected from the tractor

When the brakes move away from the wheels

When the brake pads move too far from the drums

None of these

5 / 30

What is referred to as the firewall?

The metal plate at the front of a trailer

The metal plate surrounding the brake chambers

The metal panel between the cab and the engine compartment

The metal casing around the fire extinguisher

6 / 30

What is referred to as brake pots?

A term sometimes used to describe the brake chambers

A term used to describe the dimples lets in the brake pads after application

A term used to describe damaged brake drums

A term used to describe brake pads

7 / 30

The extent of the driver's responsibility to make repairs will depend on factors such as the maintenance policy of the company and...

If the technician wants to comply

The willingness of the carrier to follow-through

The driver's mechanical experience

All of these

8 / 30

What does the application pressure gauge do?

It tells the driver the amount of air pressure being exhausted at any given time

It tells the driver how much pressure is in the primary reservoir

It tells the driver how much pressure is in the supply reservoir

It tells the driver the amount of air pressure being delivered when brakes are applied

9 / 30

What is referred to as a draincock?

The lever that is attached to the foot valve to initiate pressure

Rubber stoppers that stop the draining of the wet tank

The connector that attaches the hoses to the tanks

Drain valves mounted on each reservoir so they can be drained of moisture and other contaminants

10 / 30

Who is responsible to check the slack?

Carrier

Employer

Driver

Lead technician

11 / 30

After you reconnect lines, charge trailer and rebuild pressure, make and hold full foot-brake application, the maximum air loss after initial application is...

Two psi in one minute

Three psi in one minute

One psi in one minute

Four psi in one minute

12 / 30

Run the engine between 600 and 800 rpm and observe the time needed for air pressure to rise from...

50 to 60 psi

60 to 70 psi

35 to 50 psi

85 to 100 psi

13 / 30

Pre-trip procedure for air combination unit, for the governor operation, the cut-in pressure; fan brakes until compressor cuts in, usually about 20-25 psi less than cut-out pressure, but at a minimum of...

110 psi

100 psi

80 psi

90 psi

14 / 30

The amount of force available at the push rod is consistent out to how much of stroke?

1 3/4 inches

2 inches

2 1/4 inches

2 1/2 inches

15 / 30

Pre-trip procedure for air combination unit, make and hold a foot brake application. Which of the following is not a required step to check?

Check gauge for any air loss after initial application

There should be no air loss from the service line

Listen for audible air leaks

Watch the lines for an air loss

16 / 30

With brakes released, check that the angle formed by the slack adjuster arm and push rod is greater than...

125 degrees

75 degrees

45 degrees

90 degrees

17 / 30

Which of the following is not a step while performing a pre-trip procedure for air combination unit?

Release park brakes, move slowly ahead and apply trailer brakes with hand valve, if equipped

Charge trailer, apply park brakes on the truck only and try to gently pull ahead

Try to gently pull ahead to test emergency application of trailer brakes

With trailer emergency brakes released and truck park brakes released

18 / 30

When you stop the vehicle in the pull-out area and inspect the vehicle's braking system before proceeding down a steep hill, which of the following is not checked?

Glad hands are loose and flexible

No audible air leaks

Push rod travel is within limitations on all chambers

Drums, bearings and tires are at normal operating temperature

19 / 30

After completing a slack adjustment, apply the brakes and check that the slack adjusters...

None of these

Remain stiff with little movement

Rotate freely without binding

Remain stationary

20 / 30

When performing a pre-trip inspection for air single unit, make and hold full foot-brake application for a maximum air loss after initial application must not exceed how many psi in one minute?

1 psi

3 psi

2 psi

4 psi

21 / 30

If the brakes can't be adjusted, what should happen?

Inspect the foundation assembly for worn or broken components

Attempt a third way

Repeat twice more

Take it to a licensed technician

22 / 30

What is referred to as the front axle ratio valve?

A valve which reduces application pressure to the front brakes

A valve which splits up the application pressure to the front brakes into two parts

A valve which increases application pressure to the front brakes

None of these

23 / 30

Pre-trip procedure for air combination unit, for the governor operation, the cut-out pressure should be between...

110 and 115 psi

100 and 110 psi

120 and 145 psi

85 and 100 psi

24 / 30

What is referred to as the fulcrum?

The point where a lever pulls

The point or support on which a lever pivots

The point or support than a lever rests

The point where a lever pushes

25 / 30

When performing a pre-trip inspection for air single unit, which of the following is not a required step?

Check brake adjustments (push rod travel) manually. Adjust if necessary

With wheels blocked, release park brakes

Check security and listen for squeaks coming from the compressor

Start engine and let air pressure build up

26 / 30

Describe the parking brake valve

A red diamond-shaped valve

A yellow square-shaped valve

An orange diamond-shaped valve

A yellow diamond-shaped valve

27 / 30

What is referred to as a quick release valve?

A valve which adds air quickly to the service line to reduce release time

None of these

A valve which exhausts air quickly to reduce release time

A valve which adds air quickly to the supply line to reduce release time

28 / 30

A brake drum is made of...

Copper

Cast iron

Nickel

Cast aluminum

29 / 30

What is referred to as a pop-off valve?

A term sometimes used to describe the foot valve

A term sometimes used to describe the hand valve

A term sometimes used to describe the safety valve

A term sometimes used to describe the supply valve

30 / 30

After adjustment, check for brake contact by doing what?

All the above

Gently striking the brake drum with a metal hammer

Take it for a test drive

Pumping the brakes three or four times

Your score is

Saskatchewan Air Brake Test 08

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