Saskatchewan Air Brake Test 05

Taking the free Saskatchewan Air Brake practice test is an excellent way to prepare yourself for the official exam. By taking this practice test, you will get a good idea of what kind of questions to expect, and you will be able to hone your skills to ace the exam with flying colors. Moreover, this test is designed to cover everything that you need to know to pass your official exam successfully.

1 / 30

The trailer-supply valve is usually...

A red octagonal button

A yellow circle

A red triangle

A yellow square

2 / 30

The hand valve is typically supplied from primary and secondary circuits and plumbed to...

A double-check valve

A one-way valve

The foot valve

A two-way valve

3 / 30

Where are two-way check valves installed?

Between the foot valve and the compressor

Between the hand valve and the tractor protection valve

Beside the compressor

Between the tractor protection valve and the supply tank

4 / 30

A tractor protection valve is usually mounted on the cab or...

At the front of the trailer

Under the hood

Chassis of the tractor

Anywhere the driver decides to put it

5 / 30

What's another name for the supply line?

Primary line

Emergency line

Perimeter line

Safety line

6 / 30

The trailer-supply valve has also been referred to as...

The service valve

The emergency valve

The main line valve

The primary valve

7 / 30

Why should the glad hands be protected when not in use?

All of these

So as not to interfere with the driver

To follow company policy

To keep dirt out of the lines

8 / 30

The two-way check valve allows control of the trailer brake by use of...

The hand valve or foot valve

The one-way valve

All of these

The supply tank

9 / 30

What is the function of the service line?

It carries pressure for the service brakes

It carries air to fill the trailer's tanks

None of these

It vents the air from the service brakes

10 / 30

What will join and lock the couplers?

Locking grips

Pins

A quick, downward snap

Clamps

11 / 30

Why is the trailer hand-control valve added?

So that you can apply the trailer's brakes independent of the tractor

To allow the trailer to apply automatically

To avoid having the brakes lock

To reduce the work of the driver

12 / 30

What happens when the trailer-supply valve is open?

Air passes through the top of the tractor protection valve and prepares to charge the trailer through the supply line

Air passes through the bottom of the tractor protection valve and charges the trailer through the supply line

All of these

Air passes directly to the trailer through the supply line

13 / 30

Air is supplied to the trailer-supply valve by what?

A double-check valve that is connected to both the primary and secondary circuits

The foot valve

Two air hoses

A one-way control valve

14 / 30

Can the hand valve be used as a parking brake?

Only on Class 1 vehicles

Yes

Only with buses

15 / 30

How many positions does the manually operated trailer-supply valves have?

Five

Two

Three

Four

16 / 30

When you are not hooked to a trailer, the trailer-supply valve is...

Open

Closed

Blocked

Removed

17 / 30

Place the trailer-supply valve in the what position and reservoir air will be directed to the tractor protection valve and supply-line glad hand?

Off

Emergency

Normal

18 / 30

When connecting the glad hands, start with the two seals together and the couplers at what angle to each other?

45 degree

90 degree

30 degree

75 degree

19 / 30

What happens on a trailer breakaway?

Air will rush into the supply line until the trailer-supply valve automatically opens

The chains lock up

Air will rush out of the supply line until the trailer-supply valve automatically closes

The brakes lock up

20 / 30

What prevents air from escaping the glad hands?

A shut-off valve

A snap-lock position and a rubber seal

Nothing

A metal cap

21 / 30

Vehicles equipped with dead-end couplers should have what in use whenever the vehicle is used without a trailer?

Dead-end plates

Rounded plates

Metal plates

Protection plates

22 / 30

The double-check valve only takes air from what?

The biggest reservoir

The closest reservoir

The highest pressure circuit

The supply tank

23 / 30

The trailer hand-control valve is also called...

Spike

Lever

Nailer

Shaft

24 / 30

What do you do if the unit is not equipped with dead-end couplers?

The glad hands can rest in a pouch at the rear of the cab

The glad hand of the service line can be locked to the glad hand of the supply line

The glad hands can rest on a hook attached to the rear of the cab

None of the above

25 / 30

When the pressure in the supply line reaches 45 psi, the service line port of the tractor protection valve does what?

Opens

Shifts

Widens

Closes

26 / 30

What is referred to as glad hands?

None of these

The coupling device used to connect the service and supply lines of the trailer to the truck or tractor

The device used to force air into the brake chambers

The device used to filter the air from the compressor to the supply tank

27 / 30

Will the tractor protection valve operate if the trailer-supply valve is closed?

Depends on the size of the compressor

Yes

Depends on the number of reservoirs

28 / 30

Some vehicles are equipped with a different type of cab-mounted trailer-supply valve, which must be operated...

By remote

Electronically

None of these

Manually

29 / 30

The supply line always contains the same air pressure as...

The closest circuit

The highest-pressure circuit

The lowest-pressure circuit

The largest circuit

30 / 30

What is referred to as dynamiting?

None of these

When the brakes explode from too much air pressure

An emergency application of the trailer brakes

When the brakes fall apart

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Saskatchewan Air Brake Test 05

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