Must be metal with finished grooves for ropes.

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Multiple Choice

Must be metal with finished grooves for ropes.

Explanation:
Traction sheaves are metal wheels with finished grooves for ropes, precisely machined to match the rope size. These grooves keep the steel ropes seated, prevent slipping, and ensure proper bite as torque is translated from the drive to the rope system. The grooves provide the essential guidance and grip needed for rope-driven movement, which is why this component must be metal with finished grooves for ropes. Other options aren’t components that hold or guide ropes in a grooved, machined form—pitch diameter is a measurement, hydraulic driving machines refer to a different drive method, and floor area limit is a code parameter.

Traction sheaves are metal wheels with finished grooves for ropes, precisely machined to match the rope size. These grooves keep the steel ropes seated, prevent slipping, and ensure proper bite as torque is translated from the drive to the rope system. The grooves provide the essential guidance and grip needed for rope-driven movement, which is why this component must be metal with finished grooves for ropes. Other options aren’t components that hold or guide ropes in a grooved, machined form—pitch diameter is a measurement, hydraulic driving machines refer to a different drive method, and floor area limit is a code parameter.

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