Home / Alberta / Questions / Road Signs Road Signs Report A 'Dip' warning sign alerts to: A Pothole B Significant drop in road surface — slow C Hill D Railway Show Answer & Explanation Correct Answer: B. Significant drop in road surface — slow Dips can bottom out suspension or lift tires. Previous Next More Road Signs Questions Flashing hand with countdown means: A black-and-white checkerboard sign marks: Warning sign showing road narrowing: A 'Bump' warning sign tells drivers to: A 'Hidden Intersection' warning sign: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide