How is the hoist signal indicated?

The indication for the hoist signal is correctly represented by pointing up with an index finger and moving the hand in small circles. This gesture clearly communicates to the operator that the load should be raised, providing a visual signal that is easy to interpret from a distance. The upward pointing finger suggests elevation while the circular motion emphasizes the direction of the movement.

Understanding the significance of this signal is crucial for maintaining safety and coordination in rigging and hoisting operations. It ensures that all crew members are aware of the intended action, which is particularly vital in environments where communication may be challenging. This method helps prevent accidents that could arise from miscommunication.

In contrast, the other choices suggest gestures that do not convey a clear instruction for lifting. Moving both hands side to side, for example, is typically interpreted as a signal to stop or to indicate that no further action should be taken. Raising both arms above the head usually indicates a different type of signal, and bending the knees while pointing downward does not communicate a clear action associated with hoisting. Thus, the gesture of pointing upward with an index finger and making small circles remains the most effective and recognized way to signal that a load should be hoisted.