Is a positioning device system is a fall arrest system?
A positioning-device system provides support and must stop a free fall within 2 feet; a personal-fall-arrest system provides no support and must limit free-fall distance to 6 feet.
What are the three components of a personal fall arrest system?
Body harness, Anchor, Lifeline Explanation A body harness, anchor, and lifeline are all components of a personal fall arrest system and each have specific requirements as laid out in OSHA 29 CFR 1926.502(d).
Which of the following requirements is true for guardrail systems?
Guardrail systems shall be capable of withstanding, without failure, a force of at least 200 pounds (890 N) applied within 2 inches (5.1 cm) of the top edge, in any outward or downward direction, at any point along the top edge.
Which of the following is a fall prevention system?
Generally, fall protection can be provided through the use of guardrail systems, safety net systems, or personal fall arrest systems. OSHA refers to these systems as conventional fall protection. Other systems and methods of fall protection may be used when performing certain activities.
What is height work safety?
‘Work at height’ means work in any place where, if there were no precautions in place, a person could fall a distance liable to cause personal injury (for example a fall through a fragile roof down an unprotected lift shaft, stairwells).
At what depth of a trench does OSHA require fall protection?
5 feet
What’s the difference between a trench and an excavation?
What is the difference between an excavation and a trench? OSHA defines an excavation as any man-made cut, cavity, trench, or depression in the Earth’s surface formed by earth removal. A trench is defined as a narrow excavation (in relation to its length) made below the surface of the ground.
Why should the area around excavations be cordoned off?
Fence off all excavations in public places to prevent pedestrians and vehicles falling into them.
When should Shoring be used?
Shoring or shielding is used when the location or depth of the cut makes sloping back to the maximum allowable slope impractical. Shoring systems consist of posts, wales, struts, and sheeting. There are two basic types of shoring, timber and aluminum hydraulic.
Which of the following is the legal requirement for controlling hazards in and around excavations?
The law says you must prevent danger to workers in or near excavations. To maintain the required precautions, a competent person must inspect excavation supports or battering at the start of the working shift and at other specified times. No work should take place until the excavation is safe.
What is hazard in excavation?
More excavation-related hazards falls into trenches or excavations. tripping over equipment, debris and spoil. excavated material or other objects falling on workers. exposure to underground services or overhead electrical cables. unstable adjacent structures.
What are some dangers of excavations quizlet?
The dangers of excavations come from the possibility of cave-ins, in addition to the possibility of the lack of oxygen (asphyxiation), fire, accidental break of underground utility lines (such as gas, electricity), collapse due to moving machinery near the edge of the excavations, inhalation of toxic materials, and …
Is fire a hazard associated with excavations?
Is Fire considered a hazard associated with excavations? If you are not using protective systems or equipment while working in trenches or excavations at your site, you are in danger of suffocating, inhaling toxic materials, fire, drowning, or being crushed by a cave-in.