Home / Manitoba / Questions / Road Signs Road Signs Report Yellow diamond reading 'LOOSE GRAVEL': A Rough road B Loose gravel surface C Detour D Soft shoulder Show Answer & Explanation Correct Answer: B. Loose gravel surface Common Manitoba rural roads during maintenance. Previous Next More Road Signs Questions White diamond on blue background: Yellow diamond with snowmobile: Blue sign 'ICE ROAD': Sign reading 'WILDLIFE AREA NEXT X km': Orange sign 'BRIDGE OUT': Often Missed All Manitoba Questions Smart Practice Mock Exam Road Signs Guide