For an open trench 8 feet deep, what is the minimum distance from the trench edge to the outrigger?

Study for the Basic Principles of Cranes Test. Explore with flashcards and multiple choice questions, each question has hints and explanations. Prepare yourself effectively for the test!

Multiple Choice

For an open trench 8 feet deep, what is the minimum distance from the trench edge to the outrigger?

Explanation:
The principle here is maintaining stability when a crane operates near an open trench. To prevent the trench from undermining the outrigger supports and to reduce tipping risk, the outrigger pads must be placed back from the trench edge by at least 1.5 times the trench depth. For an 8-foot-deep trench, that comes to 1.5 × 8 = 12 feet. So the minimum distance is 12 feet. This distance helps ensure the crane’s base transfers load to solid ground rather than the unstable trench edge.

The principle here is maintaining stability when a crane operates near an open trench. To prevent the trench from undermining the outrigger supports and to reduce tipping risk, the outrigger pads must be placed back from the trench edge by at least 1.5 times the trench depth. For an 8-foot-deep trench, that comes to 1.5 × 8 = 12 feet. So the minimum distance is 12 feet. This distance helps ensure the crane’s base transfers load to solid ground rather than the unstable trench edge.

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