Iowa CDL Permit Test - Class A

(From the 2018 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
While driving, if you notice anything affecting safety or mechanically, you should:
Stay quiet and see if the problem goes away
Make a written report and include the concerns
Try to fix it your self
If making a tight turn, an operator should:
Be able to go as fast as a car
Not be concerned about speed, but focus on the road
Warn drivers behind by braking early and slowing gradually in advance of the turn
What is a possible fine for having more than one license?
Up to $100 fine
Up to $500 fine
Up to a $5,000 fine
On any upgrade, gravity will:
Speed your vehicle up.
Slow your vehicle down.
Not impact your speed.
One way to prevent hydroplaning on wet road surfaces is to:
Ensure that your tires have good tread depth.
Under-inflate your tires.
Drive faster than usual.
The use of a hand-held mobile device is:
Acceptable if weather conditions are clear
Permitted if checking work-related email
When starting a vehicle, the coolant temperature should:
Not change
Increase gradually
Jump from low to high quickly
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