Class B Driving Test | New Mexico 2025 #2 Page 7 of 7
Train for FREE online with our New Mexico 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 NM 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.
43 . When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:
An alcohol evaporator can help prevent ice from building up in an air brake system. In cold weather, the evaporator should be checked and refilled every day.
44 . Which of the following does not indicate bad brakes?
When inspecting your brakes, you should check for cracked drums; shoes or pads covered in oil, grease, or brake fluid; and shoes that are missing, broken, or worn dangerously thin.
45 . The effects of alcohol are felt:
Alcohol impairment can begin with the first drink consumed. It is both illegal and dangerous to operate a motor vehicle while impaired by alcohol.
46 . While driving:
Texting while driving a CMV is prohibited. "Texting" is defined as manually entering text into, or reading text from, an electronic device.
47 . What can happen if the exhaust system is not working properly?
Leaks in an exhaust system are extremely dangerous because they may allow toxic fumes into the cab or sleeper berth, endangering drivers and passengers.
48 . Which of the following is acceptable if found during a pre-trip inspection?
Be sure to thoroughly inspect your tires before a trip. Tire sizes should not be mismatched, and tires should not be cut, cracked, or otherwise damaged in any way.
49 . When driving under wet conditions, a lack of spray coming from the tires of other vehicles indicates that:
In wet conditions, a lack of spray coming from the tires of other vehicles indicates that ice has formed on the road. Be especially cautious when traveling under wet conditions in freezing weather.
50 . If your vehicle is hydroplaning, you should:
If your vehicle begins to hydroplane, do not apply the brakes. Instead, slow down by releasing the accelerator and pushing in the clutch.
See the exact questions that will be on the 2025 New Mexico DMV exam.
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