What must ramps and walkways 6 feet or more above lower levels be equipped with? ). d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. 2. c.Anyone Scaffolding is widely used during construction and renovation activities. Select the correct answer and then click DONE. Rolling scaffold must not be used on sloped surfaces. b.8 feet Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. 4 feet At a minimum, daily inspection and documentation of the condition of the scaffold and its ability to be occupied safely. Refusing to occupy a scaffold prior to the Competent Person providing documentation indicating that the scaffold has been inspected and deemed safe. Requirements to prevent falls that apply only to these workers are addressed separately below. Jayden and his crew are anxious to begin erecting scaffolding at the new job site. Refresher type training will be provided on an as needed basis; the periodicity of this training to be determined by EHS and the departments management, but should not exceed a period of 5 years from the previous training. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Check that direct access to or from another surface is permitted only when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surface. Requirements specific to the other types are described in the next module. The competent person would need to know the individual scaffold base plate loading and if each one is below the maximum allowable deck loading. A ladder or other safe means of access must be provided. Supported scaffold poles, frames, uprights, etc. Select the correct answer and then click DONE. Scaffolds and components must be able to support at least four times the intended load. Even if they are "in the way," braces should not be removed while work is being performed on a scaffold! c.13, 15 \text { Market } Additionally, scaffold erectors who have not erected a scaffold during the five year period from their previous scaffold erector training, shall need to be either replaced with an employee who is properly trained and will be erecting scaffolding on a more frequent basis or be retrained on the process of erecting scaffolds. Direct access is acceptable when the scaffold is not more than 14 inches (36 cm) horizontally and not more than 24 inches (61 cm) vertically from the other surfaces. The competent person / trainer shall be verified to be of sufficient knowledge, skill set, and experience to provide said training. What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? The regulatory text also is found in 29 CFR 1926, Subpart L, which is available from the Government Printing Office at (202) 512-1800; (202) 512-2250 fax - Order No. One means to support students is through the use of language scaffolds, which temporarily support students' language use in the classroom. Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. Independent lifelines should be protected from abrasion and wear. Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. Make sure hook-on and attachable ladder rungs: are positioned so that their bottom rung is not more than 24 inches above the scaffold supporting level; have uniform spacing between rungs of a maximum 16 inches; have minimum rung length of 11 inches; and, have rest platforms provided at a maximum of 35-foot vertical intervals. Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. 3.Falling objects Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. d.15, 17, Ramps and walkways _______ feet or more above lower levels must have guardrail systems. Specific requirements are described below. 5.Oxygen deficiencies, When should a personal fall arrest system be inspected? 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. are specifically designed and constructed for use as ladder rungs, are not used as work platforms when rungs are less than 11 inches in length, unless each affected employee uses appropriate fall protection, have rungs which are uniformly spaced and a length of at least 8 inches, with a maximum space between rungs of 16 inches, have rest platforms provided at a maximum of 35 foot vertical intervals, a stair rail consisting of a toprail and a midrail on each side of the stairway, a toprail of each stair rail system capable of serving as a handrail, unless a separate handrail is provided, sufficient handhold on handrails, and toprails serving as handrails, for employees grasping them to avoid falling, stair rails and handrails surfaced to prevent punctures or lacerations to employees, and to prevent snagging of clothing, stair rails and handrails constructed so that they do not constitute a projection hazard, a space of at least 3 inches between handrails, or stair rails used as handrails, and other objects, a distance of no less than 28 inches and no more than 37 inches from the upper surface of the stair rail to the forward edge of the tread, in line with the face of the riser, a landing platform at least 18 inches wide by 18 inches long at each level, a scaffold stairway width of at least 18 inches between stair rails, slip-resistant surfaces on treads and landings, stairways installed between 40 degrees and 60 degrees from the horizontal, guardrails meeting OSHA requirements on the open sides and ends of each landing, uniform riser height, within -inch, for each flight of stairs, greater variations in riser height are allowed for the top and bottom steps of the entire system (not for each flight of stairs), uniform tread depth, within -inch, for each flight of stairs, Ensure ramps and walkways 6 feet or more above lower levels have guardrails that comply with. Ensure scaffold platforms and walkways are at least 18 inches wide, unless they are used in areas that are so narrow that they must be less than 18 inches wide. b.20 feet The top edge height of top rails on supported scaffolds manufactured or placed in service after January 1, 2000 shall be installed between 38 45 inches above the platform surface. %PDF-1.4 % c.1 1/2 inches Employees doing overhand bricklaying from a supported scaffold must be protected by a guardrail or personal fall arrest system on all sides except the side where the work is being done. The department recognizes that all employees who intend on occupying a scaffold must go through the appropriate scaffold user training (see above) conducted by a qualified person (i.e. In order to be safe, which two options can Laura's team choose from to continue work? Select the correct answer and then click DONE. Supported scaffold - a type of scaffold that is supported by poles, frames, and outriggers, and usually consists of one or more platforms. EHS staff Competent person, or qualified person). The competent person is responsible for determining the safety and feasibility of installing and using safe means of access, based on site conditions and the type of scaffold involved. 11. The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 meters) above or below a point of access. Employees erecting and dismantling supported scaffolding must have a safe means of access provided when a competent person has determined the feasibility and analyzed the site conditions. Scaffold Roles and Responsibilites Section. Make sure no ramp or walkway inclines more than 1:3 (1 vertical to 3 horizontal, or 20 degrees above the horizontal). What are supported scaffold foundations set on to ensure stability? 1926.451(f)(3) Erecting and DismantlingWhen erecting and dismantling supported scaffolds, a competent person2 must determine the feasibility of providing a safe means of access and fall protection for these operations. OSHA defines a mobile ladder stand platform as a mobile, fixed-height, self-supporting unit having one or more standing platforms that are provided with means of access or egress. You will receive a message if you forgot to answer one of the questions. Counterweights shall be secured by mechanical means to the outrigger beams. a.2 feet Select all that apply and then click DONE. Planks are stamped for scaffold approved loading and usage on one end. They must be in good worker order or tagged as defective and taken out of service. b.3 to 1 b.12, 16 d.Add additional poles to support the scaffolding. Refresher type training will be provided on an as needed basis; the periodicity of this training to be determined by EHS and the departments management, but should not exceed a period of 5 years from the previous training. \text { Product } \\ Note: A level should be used during assembly to make sure new structural components remain in line. a.18 inches d. Four feet. The scaffold and its components must be capable of supporting four times the rated load. A light weight supported scaffold could be used on wood decking when the competent person has determined the structure would support the scaffold and its entire load. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. The lifeline must be attached securely to substantial members of the structure (not the scaffold) or to securely rigged lines that will safely suspend the employee in case of a fall. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. 1926.451 (b) (9) d.12 inches, If the platform is over 10 feet, it cannot exceed how many inches over the centerline support? Wood decking - This may lend itself for use as a foundation. 1.Snow How much weight should a supported scaffold and components be capable of supporting without failure? a. Dismantle the scaffolding. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. c.10 Designing platforms on two-point adjustable suspension types that are less than 36 inches wide to prevent instability; Making swaged attachments and spliced eyes on wire suspension ropes; and. When should a supported scaffold and its ability to be occupied safely used during construction renovation. From to continue work erectors also must abide by all manufacturer recommendations and be capable of supporting four times rated... 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