建設安全衛生の理解度チェキ！（その１）

ぽっくり参った〜（略してポクッター）ファウンダーの◯◯◯ッチででん！

ちな、ネタいじりだけ集約したマガジンもあるんで見逃しチェキっちょw

ドロン希望の方は、ココから他の理解度チェキにバシルーラしちまお〜ぅ。

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The best choice to protect eyes from dust is to wear

❎ Full-face welding shields

⭕️ Goggles

❎ Safety spectacles with side shields

❎ Safety spectacles without side shields

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How often must insulating gloves be tested to ensure they still protect against electric shock?

❎ Monthly

❎ After each use

⭕️ Every six months

❎ Annually

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The most appropriate technique that construction safety professionals can use to analyze system safety at smaller worksites is

⭕️ Job Safety Analysis (JSA)

❎ Probabilistic Risk Assessment

❎ Management Oversight and Risk Tree Analysis (MORT)

❎ Fault Tree

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If more than 25 employees are working underground, the following safety procedure(s) must be in place:

⭕️ All of the above

❎ Entries and exits to the underground work area must be posted with safety signs

❎ Two rescue teams must be available

❎ A designated person posted aboveground must keep count of the underground workers

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If a trench 3 feet deep is dug in gravel material, what must the angle of the trench wall be?

⭕️ 45 degrees

❎ 53 degrees

❎ 63 degrees

❎ 75 degrees

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What load can a 2-inch hydraulic cylinder used as part of a shoring system safely support?

❎ 10,000 pounds

❎ 23,000 pounds

❎ 30,000 pounds

⭕️ 18,000 pounds

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For a scaffolding system to safely hold two 200-pound workers and 50 pounds of equipment, how much weight must the scaffolding planks and suspension ropes be capable of holding?

⭕️ The planks must hold 1,800 pounds, and the suspension ropes must hold 2,700 pounds

❎ The planks must hold 2,700 pounds, and the suspension ropes must hold 1,800 pounds

❎ Both the planks and suspension ropes must hold 1,800 pounds

❎ Both the planks and suspension ropes must hold 2,700 pounds

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If a crane is used to hoist workers, the angle between the base of the crane and the ground must not exceed

⭕️ 1 percent

❎ 0.5 percent

❎ 5 percent

❎ 2 percent

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