How should you signal the crane operator to use the main hoist?
• Standardized crane hand signals used in industry and on vessels • Difference between signals for main hoist, auxiliary/whip hoist, and emergency stop • How a signaler indicates which hoist to use before giving normal motion signals
• Think about which body part or gesture is commonly used to indicate the main hoist versus the auxiliary hoist • Ask yourself: which choice shows a two-step process—first identifying the hoist, then using normal motion signals? • Which option looks like a continuous motion signal to control how long the hoist should move, and which look like special ‘select the hoist’ signals?
• Identify which options describe a two-step sequence: (1) select hoist, (2) give normal signal • Check which gesture is typically associated with main hoist selection in standard crane signal charts • Make sure you can distinguish between a signal that picks the type of hoist and a signal that controls direction/speed of movement
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