Iowa CDL Practice Test: Class A - Test 5 2025
Based on
2025 IA CDL Handbook
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 A 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 DOT locations.
1. If you take a curve too fast, two things may happen. One is that the tires may keep their traction and the vehicle may roll over. What is the other possibility?
A
Tires can lose their traction and cause you to skid off the road.
B
The ABS will shut off.
C
You will crash into a pole.
D
The brakes may stop working.