SafetyQuestion 678 of 700
A contractor wants to control silica by following the standard's 'Table 1' approach rather than doing exposure sampling. When using a handheld masonry saw outdoors, which Table 1 control is specified?
a.Provide workers a paper dust mask and sweep up afterward
b.Run the saw dry but keep bystanders 10 feet away
c.Only cut in the morning when humidity is higher
d.Use an integrated water-delivery system that continuously wets the blade to suppress dust
Explanation
Correct: Table 1 pairs the handheld masonry saw with a continuous water-delivery (wet-cutting) system, and workers follow the listed control and respirator requirement without separate air sampling. A paper dust mask with dry sweeping is not the specified engineering control. Keeping bystanders back or relying on humidity does not suppress the dust at the point of generation as Table 1 requires.
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