Which type of sign indicates a curve ahead?

• A. Regulatory sign
• B. Warning sign
• C. Information sign
• D. Construction sign

Answer: (B)

A curve ahead is indicated by a warning sign. Warning signs are designed to alert drivers to potential hazards on the road, including changes in road conditions or layout. These signs are typically diamond-shaped and feature yellow backgrounds with black symbols or text. They serve the purpose of making drivers aware that they need to reduce speed or prepare for unexpected changes, such as a curve or a turn in the roadway.

Regulatory signs primarily inform drivers of laws and regulations they must follow, such as speed limits and stop signs. Information signs provide helpful details about locations such as rest areas or directions. Construction signs are used to indicate work zones and potential hazards related to construction activities. Therefore, the distinctive role of warning signs is to denote situations like an upcoming curve, making them the correct choice in this context.