In a two-crane lift, what is the required number of signalers?

In a two-crane lift, what is the required number of signalers?

• A. Two
• B. One
• C. Three
• D. Four

Answer: (B)

Coordinating two cranes requires one clear point of direction so both operators move in sync and the load remains under control. Having a single signaler ensures there is one set of signals guiding both crane operators, which prevents conflicting instructions and reduces the chance of miscommunication that could happen if two people were signaling independently. The signaller should have a full view of both cranes, the load, and the planned path, and use standardized hand signals or radios to keep instructions unambiguous throughout the lift. For a two-crane lift, one signaler is the appropriate arrangement.

Coordinating two cranes requires one clear point of direction so both operators move in sync and the load remains under control. Having a single signaler ensures there is one set of signals guiding both crane operators, which prevents conflicting instructions and reduces the chance of miscommunication that could happen if two people were signaling independently. The signaller should have a full view of both cranes, the load, and the planned path, and use standardized hand signals or radios to keep instructions unambiguous throughout the lift. For a two-crane lift, one signaler is the appropriate arrangement.