Knowledge Test Class B #2
Class B Driving Test | Maryland 2024 #2 Page 6 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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36 . If planning to change lanes, your mirrors should:
While regular mirror checks should be part of your normal scanning routine, be especially sure to check your mirrors when changing lanes.
37 . In icy conditions, a retarder should be:
A retarder may cause a skid when traction is poor, such as when a road is icy, and should therefore be turned off in such conditions.
38 . When traveling down a downgrade, the speed of a vehicle will likely:
The force of gravity will cause a vehicle's speed to increase when traveling downhill.
39 . What is a drawback of retarders?
A retarder is a device that helps to slow a vehicle, reducing the need for a driver to use the brakes. However, these devices can be noisy and are not permitted everywhere.
40 . How much water is needed on a road surface for a vehicle to hydroplane?
No water
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.
41 . Which of the following is not a warning sign of fatigue?
Staying within your lane
Possible warning signs of fatigue include trouble focusing, frequent blinking, or eyelids that feel heavy; repeated yawning; rubbing your eyes; daydreaming, or having wandering or disconnected thoughts; trouble remembering the last few miles; missing exits or traffic signs; trouble keeping your head up; drifting from your lane, following too closely, or hitting a rumble strip; and feeling restless or irritable.
42 . When starting a vehicle with dual air brakes, pressure of ____ should be built up in the system before it is driven.
200 psi
