Knowledge Test Class B #1
Class B Driving Test | New Jersey 2024 #1 Page 6 of 7
Train for FREE online with our New Jersey 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 NJ 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.
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36 . In a vehicle with dual air brakes, what happens if one system is low on pressure?
The low system will use an auxiliary system to fill the tank.
In a dual air brake system, if one of the air systems gets very low on pressure, either the front or rear brakes will not be operating fully. You should bring your vehicle to a safe stop and have the air system repaired.
37 . After a trip:
A vehicle's battery should be disconnected.
After a trip, you may be required to perform an inspection and file a report on each vehicle that you've driven.
38 . A thin layer of ice that forms on road surfaces is called:
Blue ice.
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.
39 . When doing an inspection, make sure your brake pads are:
Free of oil and grease.
Potential problems to check for when inspecting brakes include cracked drums; shoes or pads with oil, grease, or brake fluid on them; and shoes that are missing, broken, or worn dangerously thin.
40 . During a basic vehicle control skills test, what is considered an encroachment?
The vehicle stalling while the driver shifts gears.
An encroachment during the basic vehicle control skills test is when an exercise boundary line is touched or crossed by any portion of the applicant's vehicle. Every encroachment will be counted as an error.
41 . Tires of mismatched sizes:
Should not be used on a vehicle.
Having tires of mismatched sizes on a vehicle is a problem that should be fixed if discovered during a vehicle inspection.
42 . Poisonous fumes can enter a truck's cab due to:
Under-inflated tires.
