Home / Saskatchewan / Questions / Road Signs Road Signs Report Yellow diamond with tipping truck on curve: A Sharp curve B Rollover risk (heavy vehicles) C Hill D Weight Show Answer & Explanation Correct Answer: B. Rollover risk (heavy vehicles) Advisory speed for trucks. Previous Next More Road Signs Questions White rectangular sign with number like '80': Sign reading 'MINIMUM 60': Circle with diagonal X: Black arrow on white rectangular sign: U-arrow with red slash: Often Missed All Saskatchewan Questions Smart Practice Mock Exam Road Signs Guide