Home / Newfoundland and Labrador / Questions / Road Signs Road Signs Report A yellow diamond with tipping truck on curve warns: A Sharp curve B Rollover risk for heavy vehicles — reduce speed C Steep hill D Weight limit Show Answer & Explanation Correct Answer: B. Rollover risk for heavy vehicles — reduce speed Lower advisory due to centre-of-gravity. Previous Next More Road Signs Questions A white diamond on blue background in a lane indicates: A yellow diamond with an arrow curving to the left means: A yellow sign with speed limit and children playing means: A white X-shaped sign with 'RAILWAY CROSSING' text means: A yellow pentagon with a walking figure means: Often Missed All Newfoundland and Labrador Questions Smart Practice Mock Exam Road Signs Guide