SAAQ Knowledge Exam Practice Test

Say goodbye to retakes! Upgrade to our premium plan and ace the SAAQ knowledge exam on your first attempt.

Join 5,000+ successful drivers

Truck Test 5

1.The brake pressure gauge tells you what?

The pressure at the brake pedal

The pressure in the brake lines

The pressure in the brake chambers

All of these

Correct! Wrong!

Progress
01/45

Valued user, empower your learning experience with our premium plan by practicing our 20 real exam-like mock tests, ad-free learning experience and dashboard access. This will make your learning journey more effective and exciting.

Join 5,000+ successful drivers

Truck Test 5

2.When you press the brake pedal in an air brake vehicle, what does it do?

Releases compressed air

Starts the compressor working

Directly applies the brakes

Opens the air exhaust ports

Correct! Wrong!

Progress
02/45

Unlock our premium plan to succeed in the SAAQ written exam. Our premium tests are expertly crafted and cover all the topics on road rules, ensuring a guaranteed pass.

Join 5,000+ successful drivers

Truck Test 5

3.When can the trailer handbrake be used as a parking brake?

For short periods

When in depot

Never

On level ground

Correct! Wrong!

Progress
03/45

Nail your SAAQ knowledge test by enrolling with just $4.99 for seven days of premium learning experience. Unlock a safer and smarter way to drive.

Join 5,000+ successful drivers

Truck Test 5

4.Reservoirs need to be bled…?

Every other day

Every six hours

Every day

Every week

Correct! Wrong!

Progress
04/45

Guaranteed pass with premium! Offering smarter learning techniques like interactive 20 real exam-like mock tests, topic-wise flashcards to study the road rules and ad-free learning experience.

Join 5,000+ successful drivers

Truck Test 5

5.The low air pressure indicator will always come on if the pressure drops below what level?

65 psi

35 psi

45 psi

55 psi

Correct! Wrong!

Progress
05/45

Make the most of your learning experience with only $14.99 for 30 days through unlocking our premium package and secure a guaranteed passing.

Join 5,000+ successful drivers

Truck Test 5

6.Which reservoir receives air directly from a compressor?

The supply reservoir

The secondary reservoir

The primary reservoir

All of these

Correct! Wrong!

Progress
06/45

Truck Test 5

7.What colour is the trailer air supply knob?

Blue

Green

Yellow

Red

Correct! Wrong!

Progress
07/45

Truck Test 5

8.When air is forced into the brake chamber, it acts directly on what?

The diaphragm

The slack adjuster

The pushrod

The camshaft

Correct! Wrong!

Progress
08/45

Truck Test 5

9.What is the handbrake used for?

The service brakes on the semitrailer’s wheels

The service brakes on all wheels

The spring brakes on the tractor wheels

The spring brakes on all wheels

Correct! Wrong!

Progress
09/45

Truck Test 5

10.You will not find spring brake actuators on…?

The front wheels of the tractor

The trailer wheels

The rear wheels of the tractor

Any of these

Correct! Wrong!

Progress
010/45

Truck Test 5

11.In a braking sequence, after the driver presses down on the brake pedal, what happens?

Air travels into the brake chambers

The push rod moves forward

The brake shoes contact the drums

All these things happen simultaneously

Correct! Wrong!

Progress
011/45

Truck Test 5

12.Airbrake systems are essentially made up of how many circuits?

Three

Four

Two

One

Correct! Wrong!

Progress
012/45

Truck Test 5

13.Heavy vehicles have a minimum of how many compressed air reservoirs?

Four

Three

Two

Five

Correct! Wrong!

Progress
013/45

Truck Test 5

14.If your vehicle has an air purifier, you should still bleed the supply reservoir how often?

Every week

Every month

Every day

Every three days

Correct! Wrong!

Progress
014/45

Truck Test 5

15.Brake linings lose all effectiveness at temperatures over…?

350°C

550°C

450°C

500°C

Correct! Wrong!

Progress
015/45

Truck Test 5

16.Brake linings perform best at temperatures up to…?

300°C

350°C

200°C

250°C

Correct! Wrong!

Progress
016/45

Truck Test 5

17.What is the big advantage that air brake systems have over hydraulic braking systems?

Greener

More powerful

Cheaper

All of these

Correct! Wrong!

Progress
017/45

Truck Test 5

18.In drum brakes, what causes the friction which makes a vehicle slow and stop?

Pushrod pressing on the drum

Diaphragm pressing on the brake shoes

Springs pressing on the brake lining

Brake shoes pressing on the drum

Correct! Wrong!

Progress
018/45

Truck Test 5

19.Which of these limits your braking capability?

The available air pressure

How hard you can press on the brake

How long the supply lines are

All of these

Correct! Wrong!

Progress
019/45

Truck Test 5

20.What does the parking brake control do to the air in the vehicle's brake chamber?

Cools it

Releases it

Holds it as it is

Increases its pressure

Correct! Wrong!

Progress
020/45

Truck Test 5

21.The brake linings can be found where?

On the S-cam

On the pushrod

On the brake drum

On the brake shoes

Correct! Wrong!

Progress
021/45

Truck Test 5

22.When you receive a low air pressure warning, what should you do?

Report it to mechanics at the end of your shift

Drive slowly to the next scheduled stop

Pull over immediately

Pump the brakes to re-prime the system

Correct! Wrong!

Progress
022/45

Truck Test 5

23.The truck parking brake control is what colour?

Yellow

Red

Blue

Green

Correct! Wrong!

Progress
023/45

Truck Test 5

24.The air compressor will only work if…?

The vehicle is in motion

The engine is running

At least one of these applies

The ignition is switched on

Correct! Wrong!

Progress
024/45

Truck Test 5

25.When connecting brake hose couplers, they should be held together at…?

45°

60°

90°

120°

Correct! Wrong!

Progress
025/45

Truck Test 5

26.Spring brakes are used for what?

Parking

Regular braking

Emergency

Parking and emergency

Correct! Wrong!

Progress
026/45

Truck Test 5

27.Air brakes are now fitted on almost all vehicles weighing over…?

4000 kg

3000 kg

5000 kg

2000 kg

Correct! Wrong!

Progress
027/45

Truck Test 5

28.If an air compressor begins filling the service reservoirs when their pressure drops below 105 psi, it will stop filling them when they reach what level?

110 psi

115 psi

120 psi

125 psi

Correct! Wrong!

Progress
028/45

Truck Test 5

29.The air pressure gauge tells you what?

The air pressure in the service reservoirs

The air pressure in the supply lines

The average air pressure across the system

The air pressure in the brake chambers

Correct! Wrong!

Progress
029/45

Truck Test 5

30.To keep brake hose couplers clean when not in use, they can be hooked up to dummy couplers or…?

Covered with plastic bags

Hooked to each other

Blocked off with rags

Sealed with grease

Correct! Wrong!

Progress
030/45

Truck Test 5

31.Brakes need adjusting if the pushrod travel is more than what?

3/4 inch

1 1/2 inch

1 inch

1/2 inch

Correct! Wrong!

Progress
031/45

Truck Test 5

32.Supplemental brakes always work on which wheels?

The middle trailer wheels

The drive wheels

The offside wheels

The rear trailer wheels

Correct! Wrong!

Progress
032/45

Truck Test 5

33.Compared to hydraulic brakes, air brakes react…?

At the same speed

Any of these depending on age of vehicle

Faster

More slowly

Correct! Wrong!

Progress
033/45

Truck Test 5

34.When you have adjusted the brake linings so that they hug the drum snugly, you should back the adjusting bolt off by…?

Two full turns

One quarter to one half a turn

Three quarters of a turn

One full turn

Correct! Wrong!

Progress
034/45

Truck Test 5

35.If your brakes have automatic slack adjusters, they have to be checked…?

Weekly

Daily

Monthly

Yearly

Correct! Wrong!

Progress
035/45

Truck Test 5

36.An air brake system can go from a pressure loss to emergency braking within…?

A few seconds

A few dozen seconds

A few hours

A few minutes

Correct! Wrong!

Progress
036/45

Truck Test 5

37.Which of these can cause a drop in air pressure?

Broken line

Defective compressor

Valve failure

All of them

Correct! Wrong!

Progress
037/45

Truck Test 5

38.When you double your speed, the amount of braking power required for the same stopping distance as your initial speed is…?

Halved

Trebled

Doubled

Quadrupled

Correct! Wrong!

Progress
038/45

Truck Test 5

39.Retarders and engine brakes will not work until…?

You release the accelerator

You turn off the engine

You apply the emergency brake

You press the brake

Correct! Wrong!

Progress
039/45

Truck Test 5

40.The only certain method of checking brake adjustment is what?

Measuring pushrod travel

Running stopping distance tests

Checking slack adjuster/push rod angle

Any of these

Correct! Wrong!

Progress
040/45

Truck Test 5

41.The emergency brakes can be activated by doing what?

Pulling the handbrake

Pumping the brake pedal

Pulling out the parking brake control

Pushing in the parking brake control

Correct! Wrong!

Progress
041/45

Truck Test 5

42.Which of these lessens the effect of brake lag?

Two-way valves

One-way valves

Relay valves

Governor valves

Correct! Wrong!

Progress
042/45

Truck Test 5

43.When checking brake adjustments, you should check…?

All wheels

At least the frontmost and rearmost wheels

At least six of the wheels

At least half the wheels

Correct! Wrong!

Progress
043/45

Truck Test 5

44.Hydrodynamic retarders work using what?

Exhaust gases

Air pressure

Oil pressure

Magnetic resistance

Correct! Wrong!

Progress
044/45

Truck Test 5

45.Brake fade is caused by what?

Under heating

Cold conditions

Overheating

Tired drivers

Correct! Wrong!

Sign Up/Sign In now to view your test results

Sign In

Sign Up to Unlock more Questions

Say goodbye to retakes! Upgrade to our premium plan and ace the SAAQ knowledge exam on your first attempt.

Truck Test 5

1.The brake pressure gauge tells you what?

Progress 01/45

Valued user, empower your learning experience with our premium plan by practicing our 20 real exam-like mock tests, ad-free learning experience and dashboard access. This will make your learning journey more effective and exciting.

Truck Test 5

2.When you press the brake pedal in an air brake vehicle, what does it do?

Progress 02/45

Unlock our premium plan to succeed in the SAAQ written exam. Our premium tests are expertly crafted and cover all the topics on road rules, ensuring a guaranteed pass.

Truck Test 5

3.When can the trailer handbrake be used as a parking brake?

Progress 03/45

Nail your SAAQ knowledge test by enrolling with just $4.99 for seven days of premium learning experience. Unlock a safer and smarter way to drive.

Truck Test 5

4.Reservoirs need to be bled…?

Progress 04/45

Guaranteed pass with premium! Offering smarter learning techniques like interactive 20 real exam-like mock tests, topic-wise flashcards to study the road rules and ad-free learning experience.

Truck Test 5

5.The low air pressure indicator will always come on if the pressure drops below what level?

Progress 05/45

Make the most of your learning experience with only $14.99 for 30 days through unlocking our premium package and secure a guaranteed passing.

Truck Test 5

6.Which reservoir receives air directly from a compressor?

Progress 06/45

Truck Test 5

7.What colour is the trailer air supply knob?

Progress 07/45

Truck Test 5

8.When air is forced into the brake chamber, it acts directly on what?

Progress 08/45

Truck Test 5

9.What is the handbrake used for?

Progress 09/45

Truck Test 5

10.You will not find spring brake actuators on…?

Progress 010/45

Truck Test 5

11.In a braking sequence, after the driver presses down on the brake pedal, what happens?

Progress 011/45

Truck Test 5

12.Airbrake systems are essentially made up of how many circuits?

Progress 012/45

Truck Test 5

13.Heavy vehicles have a minimum of how many compressed air reservoirs?

Progress 013/45

Truck Test 5

14.If your vehicle has an air purifier, you should still bleed the supply reservoir how often?

Progress 014/45

Truck Test 5

15.Brake linings lose all effectiveness at temperatures over…?

Progress 015/45

Truck Test 5

16.Brake linings perform best at temperatures up to…?

Progress 016/45

Truck Test 5

17.What is the big advantage that air brake systems have over hydraulic braking systems?

Progress 017/45

Truck Test 5

18.In drum brakes, what causes the friction which makes a vehicle slow and stop?

Progress 018/45

Truck Test 5

19.Which of these limits your braking capability?

Progress 019/45

Truck Test 5

20.What does the parking brake control do to the air in the vehicle's brake chamber?

Progress 020/45

Truck Test 5

21.The brake linings can be found where?

Progress 021/45

Truck Test 5

22.When you receive a low air pressure warning, what should you do?

Progress 022/45

Truck Test 5

23.The truck parking brake control is what colour?

Progress 023/45

Truck Test 5

24.The air compressor will only work if…?

Progress
01/45

Progress
02/45

Progress
03/45

Progress
04/45

Progress
05/45

Progress
06/45

Progress
07/45

Progress
08/45

Progress
09/45

Progress
010/45

Progress
011/45

Progress
012/45

Progress
013/45

Progress
014/45

Progress
015/45

Progress
016/45

Progress
017/45

Progress
018/45

Progress
019/45

Progress
020/45

Progress
021/45

Progress
022/45

Progress
023/45

Progress
024/45

Progress
025/45

Progress
026/45

Progress
027/45

Progress
028/45

Progress
029/45

Progress
030/45

Progress
031/45

Progress
032/45

Progress
033/45

Progress
034/45

Progress
035/45

Progress
036/45

Progress
037/45

Progress
038/45

Progress
039/45

Progress
040/45

Progress
041/45

Progress
042/45

Progress
043/45

Progress
044/45

Progress
045/45

Ace the DMV Exam on
Your First Attempt