Safety第 97 / 100 题
When operating a trencher, the operator should do what to stay safe?
a.Wear loose jewelry and headphones
b.Let bystanders stand next to the digging chain
c.Keep bystanders clear, watch for marked utilities, and keep hands and feet away from the chain
d.Dig first, then call DigAlert
解析
Trencher safety means keeping bystanders back, working only after utilities are located and marked, and keeping hands, feet, and clothing away from the moving digging chain. Loose items can be caught by the chain. Utility location must happen before, not after, digging.
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