安全第 1261 / 1632 题
A trench is 5 feet deep. What means of egress must be provided for workers?
a.A ladder within 50 feet of lateral travel
b.No egress until the trench reaches 6 feet
c.A ladder within 25 feet of lateral travel
d.A ladder at each end of the trench
解析
Section 1541(c)(2) requires a stairway, ladder, ramp or other safe means of egress in trench excavations 4 feet or more deep, so located that no more than 25 feet of LATERAL travel is required to reach it. Each wrong answer bends one of those figures. Option (b) moves the depth trigger to 6 feet, which is a fall-protection number with nothing to do with egress - the trench in this question is already past the 4-foot trigger. Option (a) doubles the lateral distance. Option (d) substitutes a tidy rule of thumb that fails on a long run: with ladders only at the ends of a 200-foot trench, a worker in the middle is 100 feet from either one.
法律依据: 8 CCR §1541(c)(2); 29 CFR 1926.651(c)(2)免费刷完整 1632 道题库 — 无需注册。
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同考点相关题目
- At what depth does an excavation generally require a protective system such as sloping, shoring, or shielding to protect workers from cave-ins?
- Who must inspect an excavation for hazardous conditions before employees enter and as conditions change?
- For an excavation deeper than 20 feet, protective systems (such as shoring or shielding) must be:
- Excavated spoil, materials, and equipment must be kept at least how far back from the edge of an excavation?
- Before entering a trench more than 4 feet deep where a hazardous atmosphere could exist (e.g., near landfill or sewer), the employer must:
- In the excavation soil classification system, which classification is the most stable?
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审核人 Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — 核实)