What should a tanker driver remember about the speed posted for a curve?
Correct answer: A – A tanker can roll over even while traveling at the posted curve speed
Tank vehicles carry much of their weight high above the roadway, making them top-heavy and easier to roll over. Testing has shown that a tanker may overturn at the speed limit posted for a curve. Tanker drivers should enter highway curves and entrance or exit ramps well below the posted speed and make smooth steering and speed changes.
Source: Florida Commercial Driver’s License Manual — § 8.2.1, “High Center of Gravity”

