Which option is NOT a standard hand signal for directing Aerial?

Which option is NOT a standard hand signal for directing Aerial?

• A. Extend
• B. Retract
• C. Up
• D. Spin

Answer: (D)

Ground guides use a simple set of hand motions to direct the aerial operator, so actions are clear and quickly understood in the field. The three standard signals you’ll rely on are extend, retract, and up. Extending communicates that the boom should reach outward. Retracting tells the operator to pull the boom back in. Moving the hand upward signals the platform to rise. There isn’t a universally recognized hand signal for spinning or rotating the platform; rotation is handled by the operator through their controls (and may involve radio instructions if needed). Because spin isn’t part of the standard signaling set, it isn’t a valid hand signal for directing the aerial.

Ground guides use a simple set of hand motions to direct the aerial operator, so actions are clear and quickly understood in the field. The three standard signals you’ll rely on are extend, retract, and up. Extending communicates that the boom should reach outward. Retracting tells the operator to pull the boom back in. Moving the hand upward signals the platform to rise. There isn’t a universally recognized hand signal for spinning or rotating the platform; rotation is handled by the operator through their controls (and may involve radio instructions if needed). Because spin isn’t part of the standard signaling set, it isn’t a valid hand signal for directing the aerial.