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

The hand valve or foot valve

The supply tank

All of these

The one-way valve

2 / 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

Air passes directly to the trailer through the supply line

All of these

3 / 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

4 / 30

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

Rounded plates

Dead-end plates

Metal plates

Protection plates

5 / 30

What will join and lock the couplers?

A quick, downward snap

Pins

Clamps

Locking grips

6 / 30

The trailer-supply valve is usually...

A red octagonal button

A yellow square

A yellow circle

A red triangle

7 / 30

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

The largest circuit

The lowest-pressure circuit

The closest circuit

The highest-pressure circuit

8 / 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

9 / 30

The double-check valve only takes air from what?

The closest reservoir

The supply tank

The highest pressure circuit

The biggest reservoir

10 / 30

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

The foot valve

A two-way valve

A one-way valve

A double-check valve

11 / 30

Where are two-way check valves installed?

Between the tractor protection valve and the supply tank

Beside the compressor

Between the hand valve and the tractor protection valve

Between the foot valve and the compressor

12 / 30

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

Anywhere the driver decides to put it

At the front of the trailer

Under the hood

Chassis of the tractor

13 / 30

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

The service valve

The emergency valve

The main line valve

The primary valve

14 / 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 in a pouch at the rear of the cab

None of the above

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

15 / 30

What is referred to as dynamiting?

When the brakes explode from too much air pressure

When the brakes fall apart

None of these

An emergency application of the trailer brakes

16 / 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

17 / 30

What's another name for the supply line?

Safety line

Perimeter line

Emergency line

Primary line

18 / 30

Can the hand valve be used as a parking brake?

Only with buses

Yes

Only on Class 1 vehicles

19 / 30

What is the function of the service line?

It vents the air from the service brakes

It carries air to fill the trailer's tanks

None of these

It carries pressure for the service brakes

20 / 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

To follow company policy

All of these

21 / 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

22 / 30

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

Five

Four

Two

Three

23 / 30

What prevents air from escaping the glad hands?

Nothing

A snap-lock position and a rubber seal

A shut-off valve

A metal cap

24 / 30

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

A one-way control valve

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

Two air hoses

The foot valve

25 / 30

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

Nailer

Lever

Spike

Shaft

26 / 30

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

Closed

Open

Removed

Blocked

27 / 30

What is referred to as glad hands?

The device used to force air into the brake chambers

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 filter the air from the compressor to the supply tank

28 / 30

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

Widens

Closes

Shifts

Opens

29 / 30

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

90 degree

45 degree

75 degree

30 degree

30 / 30

Why is the trailer hand-control valve added?

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

To avoid having the brakes lock

To reduce the work of the driver

To allow the trailer to apply automatically

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Saskatchewan Air Brake Test 05

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