The signal man assisting the crane operator uses one hand to give any motion signal and places the other hand motionless in front of the hand giving the motion signal. This is the signal to __________.
• Standard crane hand signals used in marine cargo and shipyard operations • How additional hand positions modify a basic motion signal • Difference between signals for stop, slow, and caution
• Think about what placing a second hand still in front of the signaling hand would communicate to an operator watching from a distance. • Consider how you might change a normal motion signal if you wanted the crane to move, but not at full speed. • Ask yourself: which of these options most clearly matches the idea of limiting or moderating the motion rather than changing direction or completely stopping?
• Verify which specific crane signal uses one moving hand and one stationary hand in front of it. • Confirm that the signal you choose is meant to control speed of motion, not to start or stop entirely. • Eliminate any option that would normally be shown by a very obvious, distinct gesture (for example, a full stop).
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