Home / Saskatchewan / Questions / Road Signs Road Signs Report Solid white line at road edge: A Centre B Right edge / shoulder boundary C Bike D No passing Show Answer & Explanation Correct Answer: B. Right edge / shoulder boundary Useful in fog / snow. Previous Next More Road Signs Questions White diamond on blue: White rectangular sign with number like '80': Sign reading 'MINIMUM 60': Circle with diagonal X: Black arrow on white rectangular sign: Often Missed All Saskatchewan Questions Smart Practice Mock Exam Road Signs Guide