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

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

So as not to interfere with the driver

To keep dirt out of the lines

To follow company policy

All of these

2 / 30

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

The emergency valve

The primary valve

The service valve

The main line valve

3 / 30

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

Closed

Removed

Open

Blocked

4 / 30

What's another name for the supply line?

Safety line

Perimeter line

Primary line

Emergency line

5 / 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

6 / 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

Chassis of the tractor

Under the hood

7 / 30

The trailer-supply valve is usually...

A yellow square

A red triangle

A red octagonal button

A yellow circle

8 / 30

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

Lever

Spike

Nailer

Shaft

9 / 30

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

Manually

None of these

Electronically

By remote

10 / 30

Can the hand valve be used as a parking brake?

Only on Class 1 vehicles

Yes

Only with buses

11 / 30

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

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 on a hook attached to the rear of the cab

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

12 / 30

What will join and lock the couplers?

Clamps

Pins

Locking grips

A quick, downward snap

13 / 30

What prevents air from escaping the glad hands?

A snap-lock position and a rubber seal

Nothing

A shut-off valve

A metal cap

14 / 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

All of these

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

15 / 30

Why is the trailer hand-control valve added?

To avoid having the brakes lock

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

16 / 30

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

Closes

Widens

Opens

Shifts

17 / 30

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

90 degree

75 degree

30 degree

45 degree

18 / 30

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

Yes

Depends on the number of reservoirs

Depends on the size of the compressor

19 / 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

20 / 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

21 / 30

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

Dead-end plates

Protection plates

Metal plates

Rounded plates

22 / 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

23 / 30

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

Two

Five

Three

Four

24 / 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

Emergency

Off

25 / 30

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

Two air hoses

The foot valve

A one-way control valve

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

26 / 30

What is referred to as glad hands?

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 filter the air from the compressor to the supply tank

The device used to force air into the brake chambers

27 / 30

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

The foot valve

A one-way valve

A double-check valve

A two-way valve

28 / 30

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

The largest circuit

The highest-pressure circuit

The lowest-pressure circuit

The closest circuit

29 / 30

The double-check valve only takes air from what?

The supply tank

The closest reservoir

The highest pressure circuit

The biggest reservoir

30 / 30

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

The supply tank

All of these

The one-way valve

The hand valve or foot valve

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Saskatchewan Air Brake Test 05

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