Which signal would be used to lower the boom and raise the hoist?

• A. The signal for boom down and raise hoist
• B. The signal for lower boom
• C. The signal for move slow
• D. The signal for hoist

Answer: (A)

Coordinated crane signals are used to communicate multiple actions clearly. The signal that specifies lowering the boom while raising the hoist tells the operator to perform two movements at once: tilt the boom down and lift the load. This combination is used when you need to bring the hook into a tighter position while increasing height, such as to clear an obstacle or set up for the next move, keeping the load path controlled and within safe limits. Signals that only lower the boom or only lift the hoist don’t provide the full instruction needed for this maneuver, and a signal to move slowly doesn’t specify which actions to take. So this combined signal is the most complete instruction for this task.