Class B Driving Test | Iowa 2025 #1 Page 7 of 7
Train for FREE online with our Iowa 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 IA 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 changing lanes:
Always use your turn signals and check your mirrors when changing lanes.
44 . When driving, being aware of what is happening behind you is:
When driving, it is important to be aware of what is happening behind and to the sides of your vehicle. Mirror checks and head checks should be a normal part of your scanning routine.
45 . A truck should be parked:
Because you can't see everything behind you, backing is always dangerous and should be avoided whenever possible. Choose parking spaces from which you can pull forward when you leave.
46 . Driving at night is:
Driving at night is more dangerous than driving during the day because hazards become more difficult to see in the dark.
47 . How much distance will an air brake-equipped vehicle need to come to a complete stop if it is traveling at 55 mph under ideal driving conditions?
A vehicle's total stopping distance is made up of perception distance, reaction distance, brake lag distance, and braking distance. With all of these factors included, an air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately 450 feet to come to a complete stop.
48 . As part of the vehicle inspection test, you will be asked to:
During the vehicle inspection test, you will be asked to do a complete inspection of your vehicle. You will need to explain what you are inspecting and why.
49 . People working on a disabled vehicle:
Be cautious when driving near people who are working on a disabled vehicle on the side of the road. They may be focused on the repair and not paying attention to nearby traffic.
50 . Mirrors should be:
When driving, you should regularly check your mirrors, both to be aware of traffic and to check for problems on your own vehicle.
See the exact questions that will be on the 2025 Iowa DMV exam.
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