Knowledge Test Class B #2
Class B Driving Test | North Dakota 2025 #2 Page 5 of 7
Train for FREE online with our North Dakota 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 ND CDL class B permit in 2025, 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.
50
40
20
29 . Parts of an exhaust system should be:
Cracked.
When inspecting an exhaust system, you should verify that parts of the system are not loose, broken, or missing. The system's parts must be properly mounted and should not be rubbing against moving parts of the vehicle.
30 . When traveling down a hill:
You will slow to a stop.
When a vehicle is traveling on a downward slope, the force of gravity will cause its speed to increase.
31 . Dollies equipped with ABS are required to have malfunction lamps located where?
On the top
A dolly equipped with an Anti-Lock Braking System (ABS) is required to have a yellow malfunction lamp located on its left side.
32 . A header board is used to:
Prevent the driver from leaving the tractor.
Front-end header boards, also known as "headache racks," protect drivers from moving cargo in the event of a crash or emergency stop.
33 . You should cover cargo:
To keep the cargo a secret.
You should cover your cargo to protect people from the cargo if it spills, as well as to protect the cargo from the weather.
34 . Why are roads particularly slippery right after it begins to rain?
Some tires are not designed for rain.
Roads are often at their most slippery when rain is just beginning to fall. This is because water mixes with oil and grease on the road to create a slick surface. As rain continues, the oil and grease will wash away.
35 . When inspecting the engine compartment, you should not:
Check the windshield washer fluid level.
