Knowledge Test Class B #1
Class B Driving Test | Maryland 2024 #1 Page 3 of 7
Train for FREE online with our Maryland 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 MD CDL class B permit in 2024, 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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15 . How much water must be present for a vehicle to hydroplane?
Hydroplaning is an effect in which a vehicle's tires lose traction with the surface of the road and instead glide along a layer of water. There does not have to be much water on the road for this to occur.
16 . A vehicle equipped with an Anti-Lock Braking System (ABS) can be identified by:
A metal plate on the inside of the driver’s side door.
You can tell that your vehicle is equipped with an Anti-Lock Braking System (ABS) if it has a yellow ABS malfunction lamp on the instrument panel.
17 . If making a tight turn, the operator of a CMV should:
Drivers behind you may not anticipate how slowly your CMV must travel to safely make a right turn. You can help warn them in advance by braking early and slowing gradually.
18 . While driving, you can:
Not read or send text messages.
Reading and sending text messages while driving is both illegal and dangerous.
19 . Cargo on flatbed trailers should be:
Pushed to one side.
On flatbed trailers or trailers without sides, cargo must be tied down to keep it from shifting or falling off in transit.
20 . What color is the low air pressure warning light?
Purple
A low air pressure warning signal is required in vehicles with air brakes. The warning light is usually red and may be accompanied by a buzzer.
21 . When backing, you should:
Use a helper, if possible.
