What signal does the crane operator use to move the crane backward?

• A. Wave
• B. Honk the horn twice
• C. Flash lights
• D. Honk the horn three times

Answer: (D)

In crane signaling, audible signals from the signal person or operator provide a clear, standardized way to communicate movement when visibility or direct hand signals aren’t enough. Moving the crane backward is communicated by three short horn blasts. That specific cue is designed to be unmistakable and repeatable, helping the operator reverse direction safely while the signal person watches for clearance. The other options are less reliable: waving can be misread or blocked, two horn blasts don’t have a universally fixed meaning for backward movement, and flashing lights can be mistaken for other warnings or may not be visible in certain conditions. Remember, always follow the site’s approved signaling protocol and confirm if there’s any doubt about the signal.