New Brunswick Knowledge Test Practice |NB Written Drivers Test

Truck Test 8

1.By federal law, how often must you perform manual and automatic slack adjuster inspections?

weekly and before driving down a steep hill posted with regulatory signs

every other day and you must log your inspections in your logbook

daily and before driving down a steep hill posted with regulatory signs

once a month

Correct! Wrong!

Progress
01/42

Truck Test 8

2.What colour are signs, such as speed limit signs, that advise drivers about driving regulations?

white outlined in black

yellow

red outlined in yellow

orange outlined in red

Correct! Wrong!

Progress
02/42

Truck Test 8

3.What are the maximum amounts of on-duty times in Cycles 1 and 2?

Cycle 1 has a maximum of 90 on-duty hours in 9 days and Cycle 2 has a maximum of 100 on-duty hours in 11 days

Cycle 1 has a maximum of 50 on-duty hours in 5 days and Cycle 2 has a maximum of 100 on-duty hours in 10 days

Cycle 1 has a maximum of 70 on-duty hours in 7 days and Cycle 2 has a maximum of 120 on-duty hours in 14 days

Cycle 1 has a maximum of 80 on-duty hours in 10 days and Cycle 2 has a maximum of 100 on-duty hours in 14 days

Correct! Wrong!

Progress
03/42

Truck Test 8

4.You enter a lane in which there are double broken yellow lines running down the center. What is the significance of these lane markings?

The lane is for use only by emergency vehicles.

Construction is occurring down the middle of the lane.

The lane is reversible. Look for a lane control signal to determine whether you can use the lane.

All vehicles may use the lane, but they must give the right-of-way to oncoming vehicles.

Correct! Wrong!

Progress
04/42

Truck Test 8

5.As a commercial driver, you must keep in your possession a daily log that's updated to your last change in duty status, as well as copies of your daily log for your cycle, and any supporting documents. How much time do you have to submit those items to your carrier?

30 days

20 days

7 days

45 days

Correct! Wrong!

Progress
05/42

Truck Test 8

6.You are driving a tractor-trailer, and the two connecting air lines between the tractor and trailer have just broken. What's function does the tractor protection system perform in this circumstance?

It sounds an alarm which indicates the trailer has become disengaged.

It automatically shuts off air loss from the tractor.

It automatically applies the tractor brakes.

It locks down the trailer doors

Correct! Wrong!

Progress
06/42

Truck Test 8

7.Using the pry method of free stroke measurement for checking brake adjustment, a free stroke approaching what length indicates the brakes need adjusting?

30 mm

20 mm

10 mm

25 mm

Correct! Wrong!

Progress
07/42

Truck Test 8

8.Compounding spring and air brakes can permanently damage service brake components. How can you avoid compounding brakes?

Always release the spring parking brakes before making a heavy service brake application.

Always release the service brakes before making a spring parking brake application.

Always apply the spring parking brakes before making a heavy service brake application

Always make a heavy service brake application, which will automatically release the spring parking break.

Correct! Wrong!

Progress
08/42

Truck Test 8

9.Why do commercial vehicles with air brakes also have mechanical parking brakes?

Mechanical parking brakes are more fuel efficient.

Air pressure is totally unreliable for stopping a vehicle by applying foundation brakes.

Regulations for parking brakes require that the parking force must be maintained by mechanical means and be unaffected by a loss of air pressure.

Regulations for parking brakes require that the parking force must be maintained with devices that rely on compressed air.

Correct! Wrong!

Progress
09/42

Truck Test 8

10.There are usually two air line connections between a tractor and a trailer. One provides air from the tractor's compressor to the trailer at full reservoir pressure. What does the other airline connection supply?

non-pressurized air for refilling trailer tires

control signals from the tractor about when to apply and release the brakes

air for heating or cooling the contents of the trailer, as needed

air from the trailer's compressor back to the tractor at full pressure

Correct! Wrong!

Progress
010/42

Truck Test 8

11.What is an industrial road?

any road that exists for the transportation of natural resources, machinery, materials or personnel

a road that was specifically strengthened for the transport of industrial equipment

a road that solely provides access to the servicing of railroad tracks

a road that was built using natural resources

Correct! Wrong!

Progress
011/42

Truck Test 8

12.If there are two drivers with a vehicle, generally only one of the two needs to sign the written inspection report. When must both drivers sign the report?

when the drivers disagree about a reported defect

when the two drivers split the driving time equally

when the report covers a period of more than twenty-four (24) hours

when the two drivers are in total agreement about a reported defect

Correct! Wrong!

Progress
012/42

Truck Test 8

13.Why is manual adjustment of automatic slack adjusters dangerous?

because it gives a false sense of security about the effectiveness of the braking system

because manual adjustment tools do not fit automatic slack adjusters and injury can result

because the automatic adjuster can engage and cause bodily harm to the person trying to perform the manual adjustment

because the automatic slack adjuster will no longer re-set to its designed stroke

Correct! Wrong!

Progress
013/42

Truck Test 8

14.In a dual air brake system, if an airline in the primary braking system ruptures, what happens if you make a brake application?

Your stopping distance is longer because only the rear axle brakes are applying.

Your stopping distance is shorter because only the steering axle brakes are applying.

Your stopping distance is shorter because only the rear axle brakes are applying.

Your stopping distance is longer because only the steering axle brakes are applying.

Correct! Wrong!

Progress
014/42

Truck Test 8

15.What colour and shape are signs that pertain to warnings near schools?

yellow outlined in red and circular

blue outlined in yellow and square

yellow and diamond-shaped

Fluorescent yellow-green and pentagon-shaped

Correct! Wrong!

Progress
015/42

Truck Test 8

16.Which of the following are two ways that spring parking brakes can be held in the released position?

by using the parking brake control on the dashboard or, automatically, when the air pressure falls (usually below 60 p.s.i.)

by using the parking brake control on the dashboard or, automatically, when the air pressure rises (usually above 60 p.s.i.)

by using the foot valve or, automatically, when the air pressure falls (usually below 60 p.s.i.)

by using the foot valve or, automatically, when the air pressure rises (usually above 60 p.s.i.)

Correct! Wrong!

Progress
016/42

Truck Test 8

17.How much might you be fined for operating a vehicle with defective brakes, including excessive brake chamber pushrod stroke?

$1500

$1000

$2000

$200

Correct! Wrong!

Progress
017/42

Truck Test 8

18.What colour and shape are signs on the road that warn of possible hazards ahead?

yellow and triangle-shaped

yellow and diamond-shaped

red outlined in yellow and square

white outlined in red and circular

Correct! Wrong!

Progress
018/42

Truck Test 8

19.Which of the following is correct when you are manually performing a slack adjustment?

The pushrod and the slack adjuster should never move in or out while you are turning the adjusting bolt

If you can see the brake shoes and linings through an inspection slot, you can visually verify that the linings have not contacted the drum.

Once you are turning in the proper direction, you should turn until you feel that the brake pad is loose in the drum.

If you're turning in the proper direction, the cam will rotate in the opposite direction that it would if the brakes were being applied.

Correct! Wrong!

Progress
019/42

Truck Test 8

20.When a sign displays a red circle with a red line that bisects the circle at an angle, what should drivers understand about the action depicted on the sign underneath the red circle?

The action is prohibited for commercial drivers only.

The action is legal, but not advised.

The action is prohibited.

The action is permitted.

Correct! Wrong!

Progress
020/42

Truck Test 8

21.What are glad hands?

gloves specially designed for use in loading or unloading commercial vehicles

a quick coupling device for connecting air line connections between a tractor and trailer

metal hand-holds along a trailer that make it easy to climb into a trailer

a signal between commercial vehicle drivers in which one allows the other to cross into the lane in front

Correct! Wrong!

Progress
021/42

Truck Test 8

22.What must you do if the low pressure warning indicator on your air brake activates?

Pump the brakes to see if the air pressure rises again.

Stop the vehicle immediately and find the cause of the air loss.

Slow the vehicle immediately and continue driving for at least a mile to see if the air pressure rises again.

Increase the vehicle's speed immediately, then do a 'hard application' of the brakes to see if the air pressure rises again.

Correct! Wrong!

Progress
022/42

Truck Test 8

23.Using the applied stroke method for checking for brake adjustment, an applied stroke approaching what length indicates the brakes need adjusting?

45 mm

25 mm

40 mm

38 mm

Correct! Wrong!

Progress
023/42

Truck Test 8

24.As a commercial driver, how many hours of off-duty time must you take every day and how many of those hours must be consecutive?

You must take 12 hours of off-duty time each day, and 10 of those hours must be consecutive

You must take 10 hours of off-duty time each day, and 8 of those hours must be consecutive

You must take 8 hours of off-duty time each day, and 6 of those hours must be consecutive

You must take 11 hours of off-duty time each day, and 9 of those hours must be consecutive.

Correct! Wrong!

Progress
024/42

Truck Test 8

25.The air line between the compressor on your vehicle and the supply reservoir has ruptured. Which of the following prevents a total loss of air pressure in the service brake system?

the one-way check valve

the governor

the drain cock

the quick-release valve

Correct! Wrong!

Progress
025/42

Truck Test 8

26.How many consecutive hours off-duty does it take to reset Cycle 1 and Cycle 2?

For Cycle 1 it is 36 consecutive hours and Cycle 2 72 consecutive hours

For Cycle 1 it is 36 consecutive hours and Cycle 2 96 consecutive hours

For Cycle 1 it is 48 consecutive hours and Cycle 2 36 consecutive hours

For Cycle 1 it is 48 consecutive hours and Cycle 2 96 consecutive hours

Correct! Wrong!

Progress
026/42

Truck Test 8

27.What happens when a trailer relay emergency system 'dynamites' the trailer's brakes?

The system has sensed that there has been an explosion of some sort on the tractor, and it has broken away from the tractor.

The system has sensed that the trailer is about to back into a stationary object, and it applies the trailer service brakes with half reservoir pressure.

The system has sensed that the tractor and trailer are about to jackknife, and it has released the trailer service brakes to prevent the jackknifing.

The system has sensed that the trailer has broken away from the tractor, and it applies the trailer service brakes with full reservoir pressure.

Correct! Wrong!

Progress
027/42

Truck Test 8

28.An air brake-endorsed driver's licence is required to operate most vehicles equipped with air-over-hydraulic brakes. What is the only exception?

if the brake system does not use an air treadle

if the air-over-hydraulic system requires a compressor

if the air-over-hydraulic system does not require a compressor

if the brake system can be converted to an all-mechanical system

Correct! Wrong!

Progress
028/42

Truck Test 8

29.As a tractor-trailer truck driver, you pull into a pullout area to complete a pre-hill inspection. If your vehicle has air brakes with automatic slack adjusters, must you check pushrod travel?

yes, but only if the grade of the hill is more than 10%

yes

yes, but only if the grade of the hill is more than 15%

no

Correct! Wrong!

Progress
029/42

Truck Test 8

30.You are traveling in an empty truck on a steep hill on a single-lane industrial road. What must you do when a loaded vehicle is approaching?

flash your headlights to remind the loaded truck to give you the right-of-way

turn around and head back to the entrance of the road in order to get out of the way of the loaded truck

use a turnout to give the loaded truck the right-of-way

back up to entrance of the road to get out of the way of the loaded truck

Correct! Wrong!

Progress
030/42

Truck Test 8

31.A relay valve is installed to reduce what?

Lag time

Drum wear

Brake fade

Excess pressure

Correct! Wrong!

Progress
031/42

Truck Test 8

32.To prevent contamination, reservoirs should be drained how often?

Twice a day

Every day

Every week

Every month

Correct! Wrong!

Progress
032/42

Truck Test 8

33.The mechanical parts of the brake system inside the wheel are known as what?

Foundation brakes

Wheel brakes

Axle brakes

Basic brakes

Correct! Wrong!

Progress
033/42

Truck Test 8

34.When an air pressure warning is given, what should you do?

Make a note to report it to a mechanic

Drive more cautiously

Stop and check for the cause immediately

Inspect the system at your next scheduled stop

Correct! Wrong!

Progress
034/42

Truck Test 8

35.The air pressure gauge for the system will be found where?

On the compressor

On the supply tank

By the front brake

On the dashboard

Correct! Wrong!

Progress
035/42

Truck Test 8

36.In most systems the primary section of a dual air brake system controls what?

Trailer axle brakes

Steering axle brakes

None of these

Drive axle brakes

Correct! Wrong!

Progress
036/42

Truck Test 8

37.A dual air brake system usually has how many reservoirs?

One

Four

Two

Three

Correct! Wrong!

Progress
037/42

Truck Test 8

38.Which of these is not part of an air brake chamber?

Diaphragm

Pushrod

Two-way valve

Return spring

Correct! Wrong!

Progress
038/42

Truck Test 8

39.A quick release valve between the front brake chambers and the foot valve serves what purpose?

To prevent brake lock up

To increase air pressure in the system

To apply the brakes more quickly

To release the brakes more quickly

Correct! Wrong!

Progress
039/42

Truck Test 8

40.A dual brake system has brakes controlled by…?

Two pedals

A pedal and a handbrake

A single pedal

Any of these depending on the manufacturer

Correct! Wrong!

Progress
040/42

Truck Test 8

41.How often should you check air pressure gauges on a trip?

At the beginning and end

Occasionally

Frequently

At every stop

Correct! Wrong!

Progress
041/42

Truck Test 8

42.The safety valve is sometimes referred to as what?

Drop off valve

Hop off valve

Chop off valve

Pop off valve

Correct! Wrong!

Sign Up/Sign In now to view your test results

Sign In

Sign Up to Unlock more Questions

Truck Test 8

1.By federal law, how often must you perform manual and automatic slack adjuster inspections?

Progress 01/42

Truck Test 8

2.What colour are signs, such as speed limit signs, that advise drivers about driving regulations?

Progress 02/42

Truck Test 8

3.What are the maximum amounts of on-duty times in Cycles 1 and 2?

Progress 03/42

Truck Test 8

4.You enter a lane in which there are double broken yellow lines running down the center. What is the significance of these lane markings?

Progress 04/42

Truck Test 8

5.As a commercial driver, you must keep in your possession a daily log that's updated to your last change in duty status, as well as copies of your daily log for your cycle, and any supporting documents. How much time do you have to submit those items to your carrier?

Progress 05/42

Truck Test 8

6.You are driving a tractor-trailer, and the two connecting air lines between the tractor and trailer have just broken. What's function does the tractor protection system perform in this circumstance?

Progress 06/42

Truck Test 8

7.Using the pry method of free stroke measurement for checking brake adjustment, a free stroke approaching what length indicates the brakes need adjusting?

Progress 07/42

Truck Test 8

8.Compounding spring and air brakes can permanently damage service brake components. How can you avoid compounding brakes?

Progress 08/42

Truck Test 8

9.Why do commercial vehicles with air brakes also have mechanical parking brakes?

Progress 09/42

Truck Test 8

10.There are usually two air line connections between a tractor and a trailer. One provides air from the tractor's compressor to the trailer at full reservoir pressure. What does the other airline connection supply?

Progress 010/42

Truck Test 8

11.What is an industrial road?

Progress 011/42

Truck Test 8

12.If there are two drivers with a vehicle, generally only one of the two needs to sign the written inspection report. When must both drivers sign the report?

Progress 012/42

Truck Test 8

13.Why is manual adjustment of automatic slack adjusters dangerous?

Progress 013/42

Truck Test 8

14.In a dual air brake system, if an airline in the primary braking system ruptures, what happens if you make a brake application?

Progress 014/42

Truck Test 8

15.What colour and shape are signs that pertain to warnings near schools?

Progress 015/42

Truck Test 8

16.Which of the following are two ways that spring parking brakes can be held in the released position?

Progress 016/42

Truck Test 8

17.How much might you be fined for operating a vehicle with defective brakes, including excessive brake chamber pushrod stroke?

Progress 017/42

Truck Test 8

18.What colour and shape are signs on the road that warn of possible hazards ahead?

Progress 018/42

Truck Test 8

19.Which of the following is correct when you are manually performing a slack adjustment?

Progress 019/42

Truck Test 8

20.When a sign displays a red circle with a red line that bisects the circle at an angle, what should drivers understand about the action depicted on the sign underneath the red circle?

Progress 020/42

Truck Test 8

21.What are glad hands?

Progress 021/42

Truck Test 8

22.What must you do if the low pressure warning indicator on your air brake activates?

Progress 022/42

Truck Test 8

23.Using the applied stroke method for checking for brake adjustment, an applied stroke approaching what length indicates the brakes need adjusting?

Progress 023/42

Truck Test 8

24.As a commercial driver, how many hours of off-duty time must you take every day and how many of those hours must be consecutive?

Progress 024/42

Truck Test 8

25.The air line between the compressor on your vehicle and the supply reservoir has ruptured. Which of the following prevents a total loss of air pressure in the service brake system?

Progress 025/42

Truck Test 8

26.How many consecutive hours off-duty does it take to reset Cycle 1 and Cycle 2?

Progress
01/42

Progress
02/42

Progress
03/42

Progress
04/42

Progress
05/42

Progress
06/42

Progress
07/42

Progress
08/42

Progress
09/42

Progress
010/42

Progress
011/42

Progress
012/42

Progress
013/42

Progress
014/42

Progress
015/42

Progress
016/42

Progress
017/42

Progress
018/42

Progress
019/42

Progress
020/42

Progress
021/42

Progress
022/42

Progress
023/42

Progress
024/42

Progress
025/42

Progress
026/42

Progress
027/42

Progress
028/42

Progress
029/42

Progress
030/42

Progress
031/42

Progress
032/42

Progress
033/42

Progress
034/42

Progress
035/42

Progress
036/42

Progress
037/42

Progress
038/42

Progress
039/42

Progress
040/42

Progress
041/42

Progress
042/42

Ace the DMV Exam on
Your First Attempt