Class B Driving Test | Ohio 2025 #1 Page 4 of 7
Train for FREE online with our Ohio 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 OH 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.
22 . What is removed when an air tank is drained?
In an air brake system, air tanks have drains to remove accumulations of water and compressor oil. Allowing water and oil to accumulate in the system could cause damage to the brakes.
23 . When backing with a trailer:
When backing, you should pull forward to reposition your vehicle whenever needed. Drift should be corrected immediately by turning the steering wheel in the direction of the drift.
24 . While driving a CMV:
While driving a CMV, you may not make voice calls if you need to hold your phone or press more than one button to do so. Additionally, you may not send or read text messages while driving.
25 . When using a fire extinguisher on a fire, you should:
When using a fire extinguisher, you should stand as far away from the fire as possible. Aim the extinguisher at the base of the fire, not at the flames. If you are not sure which kind of extinguisher should be used on a fire, particularly a hazardous materials fire, you should wait for the firefighters to arrive and allow them to extinguish it.
26 . A distracted driver:
Distracted drivers perceive hazards on the road more slowly than drivers who are focused, or they do not perceive hazards at all.
27 . As part of the vehicle inspection test, a CDL applicant may be asked to:
When checking the engine compartment during the vehicle inspection test, you will need to check the engine oil level.
28 . Which of the following is acceptable if found during a pre-trip inspection?
When inspecting your tires, verify that there is at least 4/32 of an inch of tread depth in every major groove on the front tires, and tread depth of at least 2/32 of an inch on the other tires. Tires on the same vehicle should all be the same size.
See the exact questions that will be on the 2025 Ohio DMV exam.
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