Lift Execution, Communication, and Signaling
Core concepts
Execution covers pre-lift checks, tag lines, controlled load movement, and clear communication. One designated signal person directs the operator; everyone else relays through that person. Standard hand signals, voice, or radio must be agreed before the lift. The operator stops on any signal to stop, and anyone may signal stop in an emergency. Tag lines control rotation and swing, and personnel stay clear of the load and the fall zone. The lift plan is briefed to the whole crew.
Traps to watch
Questions test who may give signals-only the designated signal person, except emergency stop, which anyone may give. Another trap is riding the load or standing under it; both are prohibited. Watch for radio protocol questions where an unclear transmission should trigger a stop, not a guess. Distractors may suggest hand signals conflicting with voice commands; the pre-agreed primary method governs, and ambiguity means stop.
Worked example
During a lift, a rigger sees the load drifting toward a worker and gives a stop signal while the designated signal person is looking away. The operator stops immediately. Rule of thumb: emergency stop overrides all other signals, and the lift does not resume until the signal person and operator confirm the situation is clear.