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

What is the function of the service line?

It vents the air from the service brakes

None of these

It carries pressure for the service brakes

It carries air to fill the trailer's tanks

2 / 30

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

The largest circuit

The closest circuit

The highest-pressure circuit

The lowest-pressure circuit

3 / 30

What will join and lock the couplers?

Pins

A quick, downward snap

Clamps

Locking grips

4 / 30

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

90 degree

30 degree

75 degree

45 degree

5 / 30

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

Four

Three

Two

Five

6 / 30

What prevents air from escaping the glad hands?

A shut-off valve

Nothing

A snap-lock position and a rubber seal

A metal cap

7 / 30

What's another name for the supply line?

Primary line

Perimeter line

Safety line

Emergency line

8 / 30

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

The main line valve

The primary valve

The service valve

The emergency valve

9 / 30

What happens when the trailer-supply valve is open?

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

Air passes directly to the trailer through the supply line

All of these

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

10 / 30

The trailer-supply valve is usually...

A yellow square

A red triangle

A red octagonal button

A yellow circle

11 / 30

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

A two-way valve

A double-check valve

A one-way valve

The foot valve

12 / 30

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

Shaft

Lever

Spike

Nailer

13 / 30

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

All of these

To keep dirt out of the lines

To follow company policy

So as not to interfere with the driver

14 / 30

The double-check valve only takes air from what?

The closest reservoir

The highest pressure circuit

The biggest reservoir

The supply tank

15 / 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

16 / 30

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

Open

Closed

Removed

Blocked

17 / 30

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

Chassis of the tractor

At the front of the trailer

Anywhere the driver decides to put it

Under the hood

18 / 30

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

Opens

Widens

Closes

Shifts

19 / 30

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

Depends on the number of reservoirs

Depends on the size of the compressor

Yes

20 / 30

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

By remote

Manually

Electronically

None of these

21 / 30

What is referred to as dynamiting?

When the brakes fall apart

When the brakes explode from too much air pressure

An emergency application of the trailer brakes

None of these

22 / 30

Why is the trailer hand-control valve added?

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

To reduce the work of the driver

To avoid having the brakes lock

To allow the trailer to apply automatically

23 / 30

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

All of these

The one-way valve

The hand valve or foot valve

The supply tank

24 / 30

What happens on a trailer breakaway?

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

The brakes lock up

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

The chains lock up

25 / 30

Can the hand valve be used as a parking brake?

Only with buses

Only on Class 1 vehicles

Yes

26 / 30

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

A one-way control valve

Two air hoses

The foot valve

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

27 / 30

Where are two-way check valves installed?

Beside the compressor

Between the hand valve and the tractor protection valve

Between the tractor protection valve and the supply tank

Between the foot valve and the compressor

28 / 30

What is referred to as glad hands?

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

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

None of these

The device used to force air into the brake chambers

29 / 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

Normal

Emergency

30 / 30

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

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

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

Your score is

Saskatchewan Air Brake Test 05

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