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Iowa CDL Permit Test - Class A

(From the 2019 Iowa CDL driver handbook)
Number of questions: 50
Passing score: 40
Directions: This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three possible answer choices. Test questions come from the Iowa Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Combination, Doubles and Hazardous Materials. Endorsements that may be used with a Class A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
You have made error so far
Passing grade —
10 or fewer errors
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8.
When should a driver sign a vehicle inspection report?
After every trip
If noted defects are repaired
After each fueling
9.
For safety purposes, when should you turn off a retarder?
When the roadways are slippery
When you have a passenger
When you are carrying a heavy load
10.
When entering a curve, you should:
Shift into neutral.
Use the shoulder.
Downshift.
11.
If a speed limit is posted, the posted speed:
Should never be exceeded.
May be exceeded if passing another vehicle.
May be exceeded if driving in a rural area.
12.
When a vehicle is started, the coolant temperature should:
Decrease.
Rise slowly.
Hold steady.
13.
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.
14.
If you are backing and the trailer begins to drift off-course, the driver should:
Return the steering wheel to the 12 o’clock position.
Turn the top of the steering wheel in the direction of the drift.
Turn the top of the steering wheel in the direction opposite of the drift.
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