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

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

Blocked

Closed

Open

Removed

2 / 30

Where are two-way check valves installed?

Between the hand valve and the tractor protection valve

Beside the compressor

Between the foot valve and the compressor

Between the tractor protection valve and the supply tank

3 / 30

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

The foot valve

A one-way control valve

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

Two air hoses

4 / 30

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

The primary valve

The service valve

The main line valve

The emergency valve

5 / 30

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

Widens

Shifts

Opens

Closes

6 / 30

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

By remote

Manually

None of these

Electronically

7 / 30

Why is the trailer hand-control valve added?

To reduce the work of the driver

To allow the trailer to apply automatically

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

To avoid having the brakes lock

8 / 30

What is the function of the service line?

It carries pressure for the service brakes

None of these

It carries air to fill the trailer's tanks

It vents the air from the service brakes

9 / 30

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

Two

Four

Five

Three

10 / 30

What will join and lock the couplers?

Locking grips

A quick, downward snap

Clamps

Pins

11 / 30

What is referred to as glad hands?

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

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

12 / 30

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

To keep dirt out of the lines

So as not to interfere with the driver

All of these

To follow company policy

13 / 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

14 / 30

The double-check valve only takes air from what?

The biggest reservoir

The supply tank

The highest pressure circuit

The closest reservoir

15 / 30

The trailer-supply valve is usually...

A red triangle

A red octagonal button

A yellow circle

A yellow square

16 / 30

What's another name for the supply line?

Perimeter line

Emergency line

Primary line

Safety line

17 / 30

Can the hand valve be used as a parking brake?

Only on Class 1 vehicles

Only with buses

Yes

18 / 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 directly to 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

19 / 30

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

Nailer

Spike

Shaft

Lever

20 / 30

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

Chassis of the tractor

Under the hood

At the front of the trailer

Anywhere the driver decides to put it

21 / 30

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

All of these

The hand valve or foot valve

The one-way valve

The supply tank

22 / 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

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

None of the above

23 / 30

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

Depends on the number of reservoirs

Yes

Depends on the size of the compressor

24 / 30

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

The highest-pressure circuit

The lowest-pressure circuit

The largest circuit

The closest circuit

25 / 30

What happens on a trailer breakaway?

The brakes lock up

The chains lock up

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

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

26 / 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

75 degree

30 degree

27 / 30

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

A one-way valve

A two-way valve

A double-check valve

The foot valve

28 / 30

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

Metal plates

Dead-end plates

Protection plates

Rounded plates

29 / 30

What prevents air from escaping the glad hands?

A snap-lock position and a rubber seal

Nothing

A metal cap

A shut-off valve

30 / 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?

Normal

Off

Emergency

Your score is

Saskatchewan Air Brake Test 05

About

Practice Tests

Getting a License

Get In Touch