Iowa CDL Practice Test: Tank - Test 2025
Based on
2025 IA CDL Handbook
Instruction: To obtain this endorsement for hauling any liquid or gaseous materials in a tank or tanks, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the IA CDL Handbook. The Tanker Vehicles endorsement can be used with the Class A, B, or C CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Iowa DOT locations.
1. Because of a liquid tanker's high center of gravity and liquid surge, you should approach curves by ______.
A
Slowing down before the curves, then accelerating slightly through the curve.
B
Slow down before the curve, then decelerating even more through the curve.
C
Speed up before the curve, then decelerate slightly through the curve.
D
Speeding up before the curve, then accelerate even more through the curve.