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 has also been referred to as...

The emergency valve

The service valve

The main line valve

The primary valve

2 / 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

3 / 30

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

Closes

Opens

Widens

Shifts

4 / 30

What prevents air from escaping the glad hands?

A metal cap

Nothing

A shut-off valve

A snap-lock position and a rubber seal

5 / 30

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

The lowest-pressure circuit

The highest-pressure circuit

The closest circuit

The largest circuit

6 / 30

The double-check valve only takes air from what?

The closest reservoir

The highest pressure circuit

The supply tank

The biggest reservoir

7 / 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

8 / 30

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

The foot valve

A double-check valve

A two-way valve

A one-way valve

9 / 30

What is referred to as dynamiting?

An emergency application of the trailer brakes

When the brakes fall apart

None of these

When the brakes explode from too much air pressure

10 / 30

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

Anywhere the driver decides to put it

Under the hood

At the front of the trailer

Chassis of the tractor

11 / 30

The trailer-supply valve is usually...

A yellow square

A red octagonal button

A yellow circle

A red triangle

12 / 30

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

To keep dirt out of the lines

To follow company policy

So as not to interfere with the driver

All of these

13 / 30

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

Manually

By remote

Electronically

None of these

14 / 30

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

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

None of the above

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

15 / 30

What will join and lock the couplers?

Pins

Locking grips

A quick, downward snap

Clamps

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?

Emergency

Off

Normal

17 / 30

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

The foot valve

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

A one-way control valve

Two air hoses

18 / 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

30 degree

75 degree

19 / 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

The supply tank

All of these

20 / 30

Can the hand valve be used as a parking brake?

Only on Class 1 vehicles

Yes

Only with buses

21 / 30

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

Three

Two

Four

Five

22 / 30

What's another name for the supply line?

Emergency line

Perimeter line

Safety line

Primary line

23 / 30

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

Open

Closed

Blocked

Removed

24 / 30

What is the function of the service line?

None of these

It carries pressure for the service brakes

It vents the air from the service brakes

It carries air to fill the trailer's tanks

25 / 30

Why is the trailer hand-control valve added?

To avoid having the brakes lock

To reduce the work of the driver

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

To allow the trailer to apply automatically

26 / 30

What is referred to as glad hands?

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

None of these

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

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

29 / 30

What happens on a trailer breakaway?

The brakes lock up

The chains 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

30 / 30

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

Shaft

Spike

Lever

Nailer

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Saskatchewan Air Brake Test 05

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