Home / Alberta / Questions / Road Signs Road Signs Report A '3.7 m' sign above an overpass: A Speed limit B Maximum vehicle height C Following distance D Overpass length Show Answer & Explanation Correct Answer: B. Maximum vehicle height Truck/RV drivers must verify loaded height. Previous Next More Road Signs Questions A 'Pavement Ends / Gravel Ahead' sign: Alberta school zone speed limit when posted: A red circle with white horizontal bar: A downward-pointing triangle with red border: A red octagonal sign means: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide