๐Iowa General Knowledge โ Question 1 of 50
You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blew out of your vehicle, what should you do first?
Iowa CDL General Knowledge Test Info
Questions on Exam
50
Passing Score
80%
Time Limit
Typically 60 minutes; varies by testing location
Age Requirements
Intrastate: 18+ ยท Interstate: 21+
Iowa DOT
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