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Iowa CDL Practice Test: Class C - Test 4 2023

Number of questions: 30
Passing score: 80%
Acceptable number of errors: 6

Instruction: When applying for this license, applicants must pass a 50-question test. And applicants must score 80% to pass the test. The following questions are based on the details provided in the IA CDL Handbook. Endorsements that may be used with a Class C CDL include Hazardous Materials, Passenger, Double and Triples, HazMat and Tanker, Air Brakes and School bus. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Iowa DMV locations.

1. What offense is a serious traffic violation?
A
Erratic lane changes.
B
Following a vehicle too closely.
C
All of the listed answers.
D
Traffic offenses committed in a CMV in connection with fatal traffic accidents.
E
Reckless driving.
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