A 'Slippery When Wet' diamond sign warns that:

Question: A 'Slippery When Wet' diamond sign warns that:

Answer options:

• A car wash is ahead ✅ Pavement may be slick in rain
• Steep hill
• Sharp curve

Correct answer: Pavement may be slick in rain

Explanation: Yellow diamond-shaped warning signs in Alberta alert drivers to upcoming physical road hazards. The slippery when wet sign indicates that the road surface can become dangerously slick during rainfall, advising drivers to reduce their speed and avoid sudden braking. A car wash is not a hazardous roadway feature, while steep hills and sharp curves are represented by their own distinct warning symbols, such as a truck on an incline or a curved arrow. On the Alberta Class 7 knowledge exam, recognizing standard warning signs and understanding how to adjust your driving for wet weather conditions is highly relevant and frequently tested.