Which description best matches the role of a spotter during lifts?

• A. Operates the crane.
• B. Maintains the crane's daily service log.
• C. Keeps direct line-of-sight and signals while equipment is in use.
• D. A person guiding the operator around blind spots; required for lifts or when visibility is restricted.

Answer: (D)

Spotters keep the lift safe by acting as the operator’s eyes and using clear signals to guide movement. The essential idea is to stay in a position where the operator can clearly see the load path and obstacles, and to communicate instructions so the load can be moved without contact or injury. The best description emphasizes guiding the operator around blind spots and being required whenever visibility is restricted, because that situation is where the spotter’s guidance is truly essential for safety. A spotter does not operate the crane or handle maintenance logs; those tasks fall to the operator and maintenance personnel, respectively. In practice, the spotter uses standard signals or radios to tell the operator when to lift, stop, or adjust, while always maintaining sight of the load and path.