Saskatchewan Commercial Drivers License Class 3 Practice Test 2

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Commercial Driver HQ

Saskatchewan Class 3 Practice Test 2

A 20 question practice test to help prepare you for the Class 3 knowledge test in Saskatchewan

1 / 20

Where is the air pressure gauge for the air brake system?

On the vehicle dashboard

Beside the supply tank

Beside the air compressor

On each wheels brake

2 / 20

The pushrod stroke occurs when compressed air enters the?

Brake chamber

Air compressor

Engine block

Supply tank

3 / 20

As an operator you are required to have vehicles and trailers inspected how often?

Monthly

Weekly

Annually

Semi-annually

4 / 20

If you feel sleepy while driving you should?

Have an energy drink

Keep driving

Sing really loud

Pull over and rest

5 / 20

What must you do at a stop sign with a painted stop line?

Come to a complete stop

Perform a rolling stop

Look quickly before proceeding

Take a sip of your coffee

6 / 20

Trailer air brake systems must apply a spring brake when the pressure drops below?

414 kPa (60 psi)

690 kPa (100 psi)

514 kPa (74 psi)

242 kPa (35 psi)

7 / 20

This yellow warning sign means what?

Gravel road ends soon

Two-way traffic ends up ahead

Paved surface ends up ahead

Road ends ahead

8 / 20

What is the correct use of an ABS system during a braking emergency?

Press the pedal firmly and hold until the vehicle stops

Pump the brake pedal until slowed then hold the pedal

Pump the brake pedal until the vehicle stops.

Press the pedal 3 times until the ABS is activated

9 / 20

What does this sign mean?

Park in the area between the signs

Free parking available

Do not park in the area between the signs

Restricted parking available

10 / 20

What does this sign mean?

Erosion to the west

Avalanche up ahead

Watch for loose rock

Watch out for falling rocks

11 / 20

Which of these vehicles would usually have an air brake system?

A school bus

A compact car

A hearse

A pickup truck

12 / 20

What does this sign mean?

Road block up ahead, keep right

Pull over for police

Keep to the right of the traffic island

Intersection ahead on the right

13 / 20

Who can perform adjustments and maintenance on your air brake system?

You can if you are the owner

Anyone

Your employer

Only certified technicians

14 / 20

When performing a normal stop, how should you press the brake pedal?

Slowly with light pressure

As hard as possible at first and then pump the brakes

Apply a little bit at a time until the vehicle stops

Steady pressure at the beginning, ease as the vehicle slows

15 / 20

What don’t a vehicle’s back wheels usually do?

Tricks

Pivot

Spin

Rotate

16 / 20

Which type of trailer can be towed before the service tanks are full?

A spring brake priority trailer

Both of these

None of these

A service brake priority trailer

17 / 20

When should you be ready to stop for a school bus?

Anytime

In residential areas only

During the day

School hours

18 / 20

When backing up to unload a dump truck, what should you do?

Make sure the backing alarm is on

Back the vehicle up quickly, there are other trucks waiting

Make sure the guide is directly behind you

Rely on the hand signals of the guide

19 / 20

How many classes of dangerous goods are there?

Nine

Six

Five

Ten

20 / 20

What does this orange sign mean?

Left turn only

Do not turn left

Follow the direction of the flashing sign

Right turn only

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The average score is 85%

More Saskatchewan Commercial Driving Practice Tests

Saskatchewan Class 1 Practice Tests

Saskatchewan Class 3 Practice Tests

Air Brakes Practice Tests

Saskatchewan Class 4 Practice Tests

Saskatchewan Road Signs Test

We do our best to keep the questions current and accurate. The testing centres may change the questions on the knowledge tests at any time. Always be prepared for surprises.

Many of the answers to the questions can be found in the driver hand books or learning materials your province provides.

DISCLAIMER:CDHQ is not affiliated with the provinces or any test centres. These practice tests should not be considered official tests and you are not granted a license for completing them. Our tests are simply a practice tool to help prepare yourself for the real test.