Alabama CDL Knowledge Test Class A: Practice Test
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The air entering air storage tanks may contain:
Water and compressor oil.
Frost.
Gravel.
Antifreeze.
When changing lanes, turn signals:
Should not be used.
Should only be used if a vehicle is close to you.
Should be used each time.
Which of the following may result in an applicant being denied a hazardous materials endorsement?
They are not a lawful permanent resident of the United States.
They have had a speeding conviction within the previous three years.
They did not correctly answer every question on the written hazardous materials endorsement test.
They did not pass the written hazardous materials endorsement test on the first attempt.
If one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected:
The vehicle's driver will be allowed to drive, but only at reduced speeds.
The vehicle will be put out-of-service until it is fixed.
The vehicle will be fine to drive since most of the spring is in place.
When adjusting your mirrors before a trip:
No part of your vehicle should be visible in any mirror.
Part of your vehicle should be visible in the mirrors.
More than half of each mirror should show the vehicle.
A CMV should:
Not have a fire extinguisher, unless it is being used to transport hazardous materials.
Not have a fire extinguisher, unless it will be traveling through remote areas.
Have a fire extinguisher and other emergency equipment.
When driving, the steering wheel should be:
Held with one hand.
Held with both hands on opposite sides of the wheel.
Held with both hands at the bottom of the wheel.
Held with both hands at the top of the wheel.
Your horn should be used to:
Tell other drivers that you are angry.
Warn other drivers that you are near.
Frighten other drivers.
When driving on a long downhill slope, you should brake by:
Only using the brakes.
Mostly using the brakes and occasionally downshifting.
Downshifting and then using the brakes.
When starting your vehicle, the coolant temperature should:
Not change.
Increase gradually.
Quickly jump from low to high.
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