Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.

Opened to drain the tanks after each day.

Eating while driving can be a dangerous distraction to the driver both because it diverts their attention away from the task at hand and requires them to remove a hand from the steering wheel.

Is a distraction to the driver.

Is a good way to maximize your time.

Is encouraged during long trips.

Is a distraction to the driver.

There are two indicators that determine when you need to shift into a higher gear. One indicator is the engine speed (rpm). You should read your vehicle's manual to learn its rpm range and shift up when you reach the top of that range. The other indicator is road speed (mph). You should learn which speeds each gear can accommodate, then keep an eye on the speedometer and shift up as needed.

Other trucks and driving conditions.

A large vehicle requires more space when entering or crossing traffic than a smaller vehicle. This is not only because the vehicle itself is larger, but also because it needs a longer distance to accelerate.

More space than is needed for a car.

Less space than is needed for a car.

About the same amount of space as is needed for a car.

More space than is needed for a car.

Class B Driving Test | Arizona 2025 #2 Page 6 of 7

Train for FREE online with our Arizona 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 AZ 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.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | Arizona 2025 #2 Page 6 of 7

36 . Manual air tank drains should be:

37 . When traveling long distances, you should:

38 . Eating while driving:

39 . When experiencing cold weather, be sure to check your vehicle's alcohol evaporator:

40 . Texting while driving should:

41 . The two indicators that determine when you should upshift are:

42 . When entering traffic, a large vehicle usually needs:

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