Arizona CDL Knowledge Test Class B: Practice Test
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Hydroplaning:
Rarely occurs with large trucks.
Usually happens when vehicles are traveling faster than 65 mph.
Can occur with a minimal amount of water on the roadway.
When slowing down, you should ____ to warn other drivers
Use a turn signal
Sound your horn
Tap your brakes
Air tank drains:
Should not be used in cold weather.
Are helpful to remove water and oil from the air tanks.
Are used to move air to the brakes.
Having weight loaded in a way that creates a high center of gravity:
Increases the likelihood of a rollover.
Increases the likelihood that items will fall down.
Increases the difficulty of unloading the cargo.
When encountering a railroad crossing during the driving test, you should:
Pass another vehicle on the tracks if the other vehicle is moving too slowly.
Change lanes while on the tracks.
Not change gears while on the tracks.
A thin layer of ice that forms on road surfaces is called:
White ice.
Black ice.
Blue ice.
A driver who stops at a green light could be:
An impaired driver.
A driver who is color blind.
A person who does not know the rules of the road.
Pre-trip inspections should be done:
Differently each time in order to place emphasis on different items.
The same way each time to prevent you from forgetting anything.
Once in a while.
If brakes overheat while going down a downhill grade, they may:
Get sticky.
Stop working.
Squeak.
Scan the road ____ ahead of your vehicle.
Two to three seconds
Five to six seconds
12 to 15 seconds
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