XD03.13 Industrial Rigging And Signaling Practice Exam

In the hoist-to-hoist transfer problem, what is the D1 dimension in feet?

8 ft 12 ft 10 ft 14 ft

Correct Answer:

10 ft

Explanation:

The question is about what D1 represents in the hoist-to-hoist transfer diagram and how the distance is determined for the transfer path. D1 is the horizontal clearance between the two hoists (the distance along the beam that defines how far apart the hoists must be to move the load from one to the other safely, accounting for rigging and swing). In this problem’s diagram, that distance is labeled as ten feet. So the transfer is planned with a ten-foot separation to ensure there’s enough room for the rigging, the load’s size, and any necessary margins to avoid hitting obstacles or violating clearance limits. The other values would not match the drawing’s specified geometry, which would either crowd the path or require more or less swing than allowed.

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