Home / Alberta / Questions / Road Signs Road Signs Report A 'Bump' warning sign tells drivers to: A Speed up B Reduce speed to maintain control C Stop completely D Turn around Show Answer & Explanation Correct Answer: B. Reduce speed to maintain control Bumps can unsettle vehicle or damage tires. Previous Next More Road Signs Questions An orange-red triangle on a vehicle back: A steep grade warning sign (with percent): A yellow diamond with three coloured circles (red/yellow/green): Chevron arrow signs (black on yellow) on a curve: A windsock or wind-line symbol: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide