ICBC Drivers Exam | ICBC Learners Practice Test Online

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Truck Test 4

1.Air brake systems are used on commercial vehicles instead of hydraulic systems because…?

They are much cheaper

They are much greener

They can apply much greater force

They need less maintenance

Correct! Wrong!

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Truck Test 4

2.The supply reservoir is also known as…?

The dry tank

The wet tank

The cold tank

The hot tank

Correct! Wrong!

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Truck Test 4

3.What do the one-way check valves on a dual air brake system control?

Airflow between the primary and secondary reservoirs

Airflow to the secondary reservoir

Airflow to the primary reservoir

Airflow to the primary and secondary reservoirs

Correct! Wrong!

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Truck Test 4

4.Air brake systems are less likely to completely fail than hydraulic systems because…?

All of the above

They are less complicated

They can cope with small leaks

They are under less pressure

Correct! Wrong!

Progress
04/40

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Truck Test 4

5.If your compressor is belt driven, when you press down on the belt midway between the pulleys, you should not be able to push it in more than…?

Four times the width of the belt

Twice the width of the belt

The width of the belt

Three times the width of the belt

Correct! Wrong!

Progress
05/40

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Truck Test 4

6.Which of these controls the compressor in an air brake system?

The reservoir

The foot valve

The brakes

The governor

Correct! Wrong!

Progress
06/40

Truck Test 4

7.In a typical Type 30 chamber, an air pressure of 100 psi will deliver a force on the pushrod of what?

2500 lbs

2000 lbs

3000 lbs

3500 lbs

Correct! Wrong!

Progress
07/40

Truck Test 4

8.In dual air brake systems using blended air, the parking brake will take air from…?

Each tank alternately

The tank with the lowest pressure

Directly from the compressor

The tank with the highest pressure

Correct! Wrong!

Progress
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Truck Test 4

9.Compounding brakes means what?

Parking brakes and service brakes applying together

Parking brakes and service brakes applying alternately

Any of these

Secondary and primary systems applying together

Correct! Wrong!

Progress
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Truck Test 4

10.Using foundation brakes to hold the vehicle when parked is…?

Illegal

Dangerous

Unreliable

All of these

Correct! Wrong!

Progress
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Truck Test 4

11.An alternative name for the supply line is what?

Service line

Primary line

Secondary line

Emergency line

Correct! Wrong!

Progress
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Truck Test 4

12.When trailer brakes "dynamite" they will remain applied for how long?

10 minutes

5 minutes

15 minutes

20 minutes

Correct! Wrong!

Progress
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Truck Test 4

13.On a dual airbrake system, if the primary system fails which of these applies?

Stopping distance will remain the same

Stopping distance will decrease

Stopping will become impossible

Stopping distance will increase

Correct! Wrong!

Progress
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Truck Test 4

14.Which of these is an alternative name for the control line?

Service line

Primary line

Emergency line

Supply line

Correct! Wrong!

Progress
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Truck Test 4

15.Spring parking brakes will come on when applied by the driver and…?

If air pressure rises

If air pressure drops

If the vehicle starts to skid

When going downhill

Correct! Wrong!

Progress
015/40

Truck Test 4

16.The parking brake control valve on the dashboard is usually which colour?

Blue

Yellow

Green

Red

Correct! Wrong!

Progress
016/40

Truck Test 4

17.Spring parking brakes will fully apply if air pressure drops to what level?

20 – 30 psi

10 – 20 psi

45 – 60 psi

5 – 10 psi

Correct! Wrong!

Progress
017/40

Truck Test 4

18.Releasing a spring parking brake manually is known as what?

Boxing

Unlocking

Forcing

Caging

Correct! Wrong!

Progress
018/40

Truck Test 4

19.The chief difference between a trailer air brake system compared to the tractor is that the trailer will not have…?

Foundation brakes

A compressor

Air reservoirs

Control valves

Correct! Wrong!

Progress
019/40

Truck Test 4

20.Which of these balances pressure between the service brakes and the spring parking brakes?

Spring brake modulator

Service brake modulator

Service brake balancer

Spring balancer

Correct! Wrong!

Progress
020/40

Truck Test 4

21.How are safety actuator parking brakes different from normal brake systems?

The brake chamber operates hydraulically

The parking brakes operate automatically

The brake chamber has two springs

The brake chamber has two diaphragms

Correct! Wrong!

Progress
021/40

Truck Test 4

22.Which of these is a sign that you may have reversed the supply line and service line connections?

All of these

The foot valve feels spongy

The trailer service brakes are locked

The spring parking brakes won’t release

Correct! Wrong!

Progress
022/40

Truck Test 4

23.What force does the coil spring in spring parking brake chambers exert?

1500 – 2000 lbs

1000 – 1500 lbs

2500 – 3000 lbs

2000 – 2500 lbs

Correct! Wrong!

Progress
023/40

Truck Test 4

24.If your system is colour-coded, the supply line will be what colour?

Black

Red

Blue

White

Correct! Wrong!

Progress
024/40

Truck Test 4

25.In colour-coded systems, which colour is used to indicate the control line?

Red

Blue

Green

Yellow

Correct! Wrong!

Progress
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Truck Test 4

26.When not in use, glad hand couplers should be blocked with dead-end couplers or if these are not available they should be…?

Secured upright

Blocked with rags

Left venting air

Connected to each other

Correct! Wrong!

Progress
026/40

Truck Test 4

27.The couplers between tractor and trailer are known as what?

No hands

Third hands

Extra hands

Glad hands

Correct! Wrong!

Progress
027/40

Truck Test 4

28.Before manually releasing spring brakes, you should do what?

Turn on the engine

Chock the wheels

Pressurise the air system

Attach the vehicle to a tow truck

Correct! Wrong!

Progress
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Truck Test 4

29.Spring parking brakes are kept off by…?

Spring pressure

Air pressure

Any of these

Drive force

Correct! Wrong!

Progress
029/40

Truck Test 4

30.Spring parking brakes are mounted where on a tractor?

On the rear and steering axles

On the steering axles

Any of these

On the rear axles

Correct! Wrong!

Progress
030/40

Truck Test 4

31.When using a bobtail proportioning system braking will require…?

Normal pedal pressure

Lower than usual pedal pressure

Higher than usual pedal pressure

Any of these depending on road conditions

Correct! Wrong!

Progress
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Truck Test 4

32.When the trailer air supply valve is closed, the trailer brakes must…?

Release fully

Apply 50%

Release 75%

Apply fully

Correct! Wrong!

Progress
032/40

Truck Test 4

33.Under what circumstances can you use the hand valve for parking?

If parking temporarily

On level ground

None of them

If off street

Correct! Wrong!

Progress
033/40

Truck Test 4

34.Drum brake linings must be a minimum of what thickness?

1/8 inch

1/16 inch

1/2 inch

1/4 inch

Correct! Wrong!

Progress
034/40

Truck Test 4

35.By law, you must check the manual and automatic slack adjusters…?

Every day

Every 1000 miles

Every two days

Once a week

Correct! Wrong!

Progress
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Truck Test 4

36.Brakes need adjustment if the applied stroke is more than…?

1 1/4 inches

2 1/2 inches

1 3/4 inches

2 3/4 inches

Correct! Wrong!

Progress
036/40

Truck Test 4

37.When checking adjustment, you should wear…?

Eye protection

Stout clothing

A hard hat

All of these

Correct! Wrong!

Progress
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Truck Test 4

38.The vast majority of brake failures are caused by what?

Poor driving

Road debris

Poor maintenance/checking

Mechanical defects

Correct! Wrong!

Progress
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Truck Test 4

39.Operating a vehicle with an excessive brake chamber pushrod stroke can result in a fine of up to…?

$1500

$2500

$1000

$2000

Correct! Wrong!

Progress
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Truck Test 4

40.Alcohol injector systems are designed to prevent…?

Freezing

Rusting

Excessive moisture

All of these

Correct! Wrong!

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Dear user, its time to take Fastrack success in driving! Our premium plan increases the chances of passing in first attempt. Don’t wait, upgrade now!

Truck Test 4

1.Air brake systems are used on commercial vehicles instead of hydraulic systems because…?

Progress 01/40

The road to first-time pass begins with our premium package. From road rules, safety driving practices to emergency handling, we got you all covered.

Truck Test 4

2.The supply reservoir is also known as…?

Progress 02/40

Experience excellence with our premium offering! Access to 20 real ICBC knowledge test questions, ad-free learning, personalized dashboard access, and performance tracker.

Truck Test 4

3.What do the one-way check valves on a dual air brake system control?

Progress 03/40

Don’t settle for less! Accelerate your progress with our $4.99 premium plan for seven days and get secured passing score in ICBC knowledge test.

Truck Test 4

4.Air brake systems are less likely to completely fail than hydraulic systems because…?

Progress 04/40

Hurry Up! Limited offer! Grab your chance to excel with 30 days of in-depth learning on rules of the road just for $14.99.

Truck Test 4

5.If your compressor is belt driven, when you press down on the belt midway between the pulleys, you should not be able to push it in more than…?

Progress 05/40

Increase the chances of passing with premium! 20 real exam-like practice tests, topic-wise flashcards, ad-free learning, personalized dashboard access and unlimited practice.

Truck Test 4

6.Which of these controls the compressor in an air brake system?

Progress 06/40

Truck Test 4

7.In a typical Type 30 chamber, an air pressure of 100 psi will deliver a force on the pushrod of what?

Progress 07/40

Truck Test 4

8.In dual air brake systems using blended air, the parking brake will take air from…?

Progress 08/40

Truck Test 4

9.Compounding brakes means what?

Progress 09/40

Truck Test 4

10.Using foundation brakes to hold the vehicle when parked is…?

Progress 010/40

Truck Test 4

11.An alternative name for the supply line is what?

Progress 011/40

Truck Test 4

12.When trailer brakes "dynamite" they will remain applied for how long?

Progress 012/40

Truck Test 4

13.On a dual airbrake system, if the primary system fails which of these applies?

Progress 013/40

Truck Test 4

14.Which of these is an alternative name for the control line?

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Truck Test 4

15.Spring parking brakes will come on when applied by the driver and…?

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Truck Test 4

16.The parking brake control valve on the dashboard is usually which colour?

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Truck Test 4

17.Spring parking brakes will fully apply if air pressure drops to what level?

Progress 017/40

Truck Test 4

18.Releasing a spring parking brake manually is known as what?

Progress 018/40

Truck Test 4

19.The chief difference between a trailer air brake system compared to the tractor is that the trailer will not have…?

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Truck Test 4

20.Which of these balances pressure between the service brakes and the spring parking brakes?

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Truck Test 4

21.How are safety actuator parking brakes different from normal brake systems?

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Truck Test 4

22.Which of these is a sign that you may have reversed the supply line and service line connections?

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Truck Test 4

23.What force does the coil spring in spring parking brake chambers exert?

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Truck Test 4

24.If your system is colour-coded, the supply line will be what colour?

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