FREE CDL Class B Driving Test Online | Nebraska 2024 Page 4 of 7
Train for FREE online with our Nebraska 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 NE CDL class B permit in 2021, 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.
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22 . A pre-trip inspection:
A pre-trip vehicle inspection should be done in the same way every time. Consistency will help a driver learn all of the proper steps and decrease the possibility of the driver forgetting to inspect something.
23 . When an S-cam turns inside a brake drum, the S-cam:
When a brake pedal is pressed and the S-cam is turned, the S-cam presses the brake shoes against the inside of the brake drum. This causes friction and will cause the vehicle to slow.
24 . A low air pressure warning signal should activate:
In an air brake system, a low air pressure warning signal must come on if air pressure in the tanks falls below 55 psi. This warning signal may come in the form of a light, a buzzer, or a wig wag.
25 . If stopped on the side of the road, how should you alert other motorists?
Keep the driver's side door open.
If you must stop on the side of the road, it is important to turn on your four-way emergency flashers to warn other road users.
26 . When approaching a downgrade, how can you reduce the amount of braking that will be needed?
Turn off the engine.
Always shift to a lower gear before starting down a hill. Doing this will help your vehicle maintain a safe speed without you needing to use the brakes too much.
27 . When backing with a trailer:
You should avoid braking.
When backing with a trailer, you should pull up to reposition your vehicle as needed.
28 . On a wet road, you should reduce your speed:
By about one-eighth.
