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 happens when the trailer-supply valve is open?

All of these

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

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

2 / 30

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

Protection plates

Rounded plates

Metal plates

Dead-end plates

3 / 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

Two air hoses

The foot valve

A one-way control valve

4 / 30

What is referred to as glad hands?

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

The device used to force air into the brake chambers

None of these

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

5 / 30

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

The emergency valve

The service valve

The main line valve

The primary valve

6 / 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

None of the above

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

7 / 30

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

Shaft

Spike

Nailer

Lever

8 / 30

What will join and lock the couplers?

A quick, downward snap

Pins

Locking grips

Clamps

9 / 30

Can the hand valve be used as a parking brake?

Yes

Only with buses

Only on Class 1 vehicles

10 / 30

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

Removed

Blocked

Closed

Open

11 / 30

Where are two-way check valves installed?

Between the tractor protection valve and the supply tank

Between the foot valve and the compressor

Between the hand valve and the tractor protection valve

Beside the compressor

12 / 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 supply tank

The one-way valve

13 / 30

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

To keep dirt out of the lines

All of these

To follow company policy

So as not to interfere with the driver

14 / 30

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

By remote

Electronically

Manually

None of these

15 / 30

The double-check valve only takes air from what?

The supply tank

The closest reservoir

The biggest reservoir

The highest pressure circuit

16 / 30

What happens on a trailer breakaway?

The chains lock up

The brakes lock up

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

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

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

Normal

Emergency

18 / 30

The trailer-supply valve is usually...

A red octagonal button

A yellow square

A yellow circle

A red triangle

19 / 30

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

75 degree

45 degree

90 degree

30 degree

20 / 30

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

Four

Three

Two

Five

21 / 30

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

Chassis of the tractor

Under the hood

Anywhere the driver decides to put it

At the front of the trailer

22 / 30

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

Shifts

Opens

Widens

Closes

23 / 30

What is referred to as dynamiting?

An emergency application of the trailer brakes

None of these

When the brakes fall apart

When the brakes explode from too much air pressure

24 / 30

Why is the trailer hand-control valve added?

To avoid having the brakes lock

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

To allow the trailer to apply automatically

To reduce the work of the driver

25 / 30

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

The lowest-pressure circuit

The closest circuit

The highest-pressure circuit

The largest circuit

26 / 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

27 / 30

What prevents air from escaping the glad hands?

Nothing

A shut-off valve

A metal cap

A snap-lock position and a rubber seal

28 / 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

It vents the air from the service brakes

None of these

29 / 30

What's another name for the supply line?

Emergency line

Safety line

Perimeter line

Primary line

30 / 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

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Saskatchewan Air Brake Test 05

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