Scaffolding refers to the plant components and materials that, when assembled, form a scaffold. Tube and coupler scaffolds over 125 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. Resist penetration by objects and absorb the shock of a blow. Many precautions must be taken before scaffolding work can commence. Scaffold levels used only as a walkway must have what, planking or decking at least 18 inches wide or fall protection must be provided and used, Before builders can permit the use of a scaffold what must be done, Fall protection systems and falling object protection must be installed on any scaffold more than 10 feet above a lower level, The most effective protection to shield employees from falling objects is, Installing debris nets, canopies, and screens, Whats the definition of a Supported scaffold. One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them is a/n ______________: Providing worker training on the safe use of the equipment being operated is the responsibility of the: To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that hasnt been locked-out. Overhead supporting members (roof structure, ceiling beams, or other structural members) shall be inspected and checked for strength before the scaffold is erected. A scaffold must be erected "plumb, square, and level," because: Answer: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold Make sure the scaffold is stable. Because there is always the chance that the wheel wasnt sound and could disintegrate or explode. The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. Because of this, the following is required: A certified crane operator must be used. B. Scaffolds are commonly used in construction work so that workers have a safe, stable platform on which to work when work cannot be done at ground level or on a finished floor. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. Scaffold 0c8be2a1 9996-490a-99c0-6ef40baed98a. Every element of your orientation must be exact. Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. Non-cross-laminated wood boatswains' chairs shall be reinforced on their underside by cleats securely fastened to prevent the board from splitting. All joints must be Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. In general, head protection should do which of the following? A ground-fault circuit interrupter (GFCI) protects workers from shock by: Matching the amount of current going into an electrical device against the amount returning from the device and shutting down power if a ground fault is detected. The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training [29 CFR 1910.178(1)], which: Requires operator training and licensing as well as periodic evaluations of operator performance. If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal. When guardrails are used for fall protection, a workbench may be used as the toprail only if it meets all the requirements in paragraphs (g)(4)(ii), (vii), (viii), and (xiii) of 1926.451. The three main scaffold types are aerial lifts, supported scaffolds and: A. Tubular scaffolds Scaffolds shall be equipped with additional independent support lines, equal in number to the number of points supported, and of equivalent strength to the suspension ropes, and rigged to support the scaffold in the event the suspension rope(s) fail. Each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be protected from damage due to contact with edges, corners, protrusions, or other discontinuities of the supporting structure or scaffold components. When wood poles are constructed of two continuous lengths, they shall be joined together with the seam parallel to the bracket. (w) of appendix A to this subpart; "Stilts." (b) Tube and Coupler Scaffolds. "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". The use of gray cast iron is prohibited. You can read the details below. D. Stop using the tool, A. SCAFFOLDS MUST BE ERECTED IN ACCORDANCE WITH DESIGN AND/OR MANUFACTURERS' RECOMMENDATIONS. Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. Passage may be made from one platform to another only when the platforms are at the same height, are abutting, and walk-through stirrups specifically designed for this purpose are used. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. or more per square foot. Make sure a proper access is provided. Diagonal braces shall be installed between squares on the rear and front sides of the scaffold, and shall extend from the bottom of each square to the top of the next square. The ground is level and stable. Specific requirements are described below. Provide guards on power tools and other equipment with moving parts. When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced, prior to receiving the new platforms. The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. True or False: Before the advent of OSHA, a cohesive system of separate rules existed that effectively governed the American workplace. Rope connections shall be such that the platform cannot shift or slip. Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. Ensure the scaffold has not been compromised by snow or ice conditions. Position the first level of bracing as close to the base as possible. Which of these is required if the workers body, hands or clothing may come into contact with moving parts? Electricity travels in closed circuits, and its normal route is through a conductor. When poles are made of wood, the pole lumber shall be straight-grained, free of shakes, large loose or dead knots, and other defects which might impair strength. DO NOT ERECT, DISMANTLE OR ALTER A SCAFFOLD unless under the supervision of a qualified person. Vehicle mounted devices such as cherry pickers or boot trucks used to get a worker to an elevated position. Remote detonators to implode a structure B. Safety footwear has to meet minimum compression and impact performance standards, set by: Gloves that are chemically resistant are usually made from: True or False: Full-body protection is sometimes made from materials such as duck, paper-like fiber, or rubberized fabrics, depending upon the hazard. that construction workers use for working safely at elevations. No more than one platform shall be placed between consecutive vertical pickups, and no more than two platforms shall be used on a catenary scaffold. If uplift could cause the components to separate, locking pins must be used and the components secured. job, and he shouldhis life depends on it. Wooden bracket-form scaffolds shall be an integral part of the form panel. B. Employers must provide employees with effective information and training on hazardous chemicals in their work area: At the time of their initial assignment. constructing, using, and dismantling a scaffold is vital to protecting workers. Tensioning of each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be by means of a turnbuckle at least 1 inch (2.54 cm) in diameter, or by equivalent means. PLUMB/LEVEL/SQUARE. Frequently used types of scaffolds include the Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. A supported scaffolding height-to-base ratio of . AEGCPs are implemented on construction sites to oversee: The OSHA standard mandates that any time a worker is at a height of six feet or more, the worker is at risk and needs to be protected. B. Scaffolds have been around for thousands of years, and there are myriad types and C. Wear goggles or safety spectacles Employees shall not be allowed to ride on scaffolds unless the following conditions exist: The surface on which the scaffold is being moved is within 3 degrees of level, and free of pits, holes, and obstructions; Outrigger frames, when used, are installed on both sides of the scaffold; When power systems are used, the propelling force is applied directly to the wheels, and does not produce a speed in excess of 1 foot per second (.3 mps); and. 2. What Is The Molar Mass Of Calcium Chloride? Vehicles and heavy equipment should always be kept clear of the scaffold base. Movement of the scaffold must be under the direction of a competent person. Materials being hoisted onto a scaffold must Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? 5% b. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. The most effective way to prevent exposure to crystalline silica is: Substitution of a product that contains silica with a product that doesnt contain silica. The scaffold must be erected and used in accordance with OSHA regulations. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal Scaffolding means a convenient platform for persons to work at height. Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. Electricity travels in closed circuits, and its normal route is through a conductor. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. 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