Home / Alberta / Questions / Road Signs Road Signs Report A yellow diamond with curve + speed number: A Legal limit B Advisory safe speed (not ticketable) C Min speed D Truck limit Show Answer & Explanation Correct Answer: B. Advisory safe speed (not ticketable) Going faster risks leaving the road. Previous Next More Road Signs Questions Orange traffic cones or barrels mark: A steep hill percentage sign (e.g., 8%): White diamond on pavement + diamond sign: A yellow diamond with two opposing arrows: In a posted Community Safety Zone: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide