Fall Protection第 53 / 100 题
How must scaffold platforms be planked to prevent workers or tools from falling through?
a.Left mostly open
b.Planked with 12-inch gaps
c.Not planked at all
d.Fully planked or decked with gaps generally no more than 1 inch around uprights
解析
Scaffold platforms must be fully planked or decked, with the space between planks and between the platform and uprights generally not exceeding 1 inch. Larger gaps are only allowed where necessary to fit around uprights. Full planking prevents workers and tools from falling through.
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