Because they are exposed to less sunlight, shaded patches of road will stay cooler longer than other areas of the road. Due to the lack of direct sunlight, shady areas can remain icy and slippery after ice on other areas of the road has melted.

Will remain slick after ice on other areas of the road has melted.

Usually do not contain moisture, so they can’t freeze.

Will remain slick after ice on other areas of the road has melted.

A dual air brake system is made up of two separate air brake systems. The systems share a single set of brake controls, but each has its own air tanks, hoses, and lines.

Each system has separate air tanks, hoses, and lines.

The systems share air tanks, but each has its own separate hoses and lines.

Each system uses the same lines and hoses.

One system is the main braking system and a second system is ready to be used if the first one fails.

If a tractor-trailer is so equipped, the trailer brake hand valve can be used to stop the vehicle from rolling back when being started from a stop.

Prevent the truck from rolling back when being started from a stop.

If your hydraulic braking system will not build up the pressure needed to slow or stop your vehicle, there are a few possible solutions. Try shifting into a lower gear, pumping the brakes, and/or using the emergency brake.

Hold the brake pedal down as far as it will go.

The suspension system is responsible for supporting a vehicle, supporting its load, and keeping its axles in place. When inspecting your vehicle, check for damaged or missing spring hangers, spring leaves, shock absorbers, u-bolts, and frame members. Broken parts in the suspension system are extremely dangerous.

Should be repaired, but do not need to be repaired immediately.

ABS is equipped in addition to a vehicle's normal braking system and it neither increases nor decreases the vehicle's braking capability. ABS activates during hard applications of the brake pedal in order to prevent wheels from locking up.

Are equipped in addition to other braking systems and do not reduce normal braking power.

Reduce normal braking capacity.

Are equipped in addition to other braking systems and do not reduce normal braking power.

Are not effective on larger vehicles.

Class B Driving Test | North Carolina 2024 #1 Page 5 of 7

Train for FREE online with our North Carolina class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a NC CDL class B permit in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | North Carolina 2024 #1 Page 5 of 7

29 . Areas of the road that are shaded:

30 . In a dual air brake system:

31 . If a truck is equipped, a trailer brake hand valve can be used to:

32 . What should you do if the braking system cannot build up hydraulic pressure?

33 . Broken suspension parts:

34 . Anti-Lock Braking Systems (ABS):

35 . As part of the vehicle inspection test, a CDL applicant may be asked to:

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