Safety & Codes第 97 / 110 题
When using a portable ladder, a safe practice is to maintain what?
a.One hand on a tool at all times
b.Three points of contact and proper ladder angle
c.The ladder on a slippery surface
d.The top rung as a step
解析
Maintaining three points of contact and setting a straight ladder at roughly a 4-to-1 angle greatly reduces fall risk. Ladders must be on stable, level surfaces and inspected before use. Cal/OSHA specifies ladder safety requirements to prevent falls, a leading cause of injury.
法律依据: Cal/OSHA Title 8免费刷完整 110 道题库 — 无需注册。
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