Home / Saskatchewan / Questions / Road Signs Road Signs Report Yellow diamond 'LOOSE GRAVEL': A Rough B Loose gravel surface C Detour D Shoulder Show Answer & Explanation Correct Answer: B. Loose gravel surface Common maintenance season. Previous Next More Road Signs Questions Circle with diagonal X: Sign reading 'MINIMUM 60': White rectangular sign with number like '80': U-arrow with red slash: Black arrow on white rectangular sign: Often Missed All Saskatchewan Questions Smart Practice Mock Exam Road Signs Guide