The department will designate, identify, and provide training for competent persons within the department. When are workers on scaffolding most vulnerable to fall hazards? Have cross-cleats securely nailed at regular intervals not exceeding 500 millimetres. Cross braces shall not be used as a means of access. The weather has been an issue and has pushed the project back. As they return to the site to continue their work, the first step they should take is to: Only authorized scaffold erectors can erect scaffolds on campus. 4. Maintaining fall protection requirements while erecting / dismantling scaffolds. 09/18/2013. fall protection systems in place, falling object prevention in place, appropriate access / egress to and from the scaffold, appropriate anchorage and stability of the structure, appropriate walking / working surfaces, maintaining appropriate clearances from electrical hazards, etc.). 262 Alexander Street Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. Prior to occupation scaffold erectors must notify the competent person that the scaffold has been erected and is ready to be inspected. Check that scaffolds and scaffold components are capable of supporting, without failure, their own weight and at least 4 times their maximum intended load. b.3 to 1 Select all that apply and then click DONE. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. chubby b. 6. Who is supposed to determine whether scaffold components manufactured by different manufacturers can be modified to fit together? Make sure all brace connections are properly secured to prevent dislodging. c.24 inches Per 1926.451 (g) (1), each employee on a scaffold more than 10-feet above a lower level must be protected from falling to that lower level (also note American National Safety Institute/American Society of Safety Professionals (ANSI/ASSP) - Scaffolding Safety Requirements A10.8-2019 standard). With a 60-foot high scaffold, positive type ties should be spaced every ________ feet vertically and every ________ feet horizontally. Remove ties and braces. Contacting EHS if there is a concern regarding the erection of the scaffold. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? 1.Use gravel to fill in the uneven spots. Should he use those planks? Select all that apply and then click DONE. 2.Rubber The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. c.One mudsill per leg extending 6 inches beyond centerline of the pole b. b.18 inches uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 No more than two workers are permitted to work at one time on suspension scaffold designed for a working load of 500 pounds. Each worker on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level by use of guardrail systems or personal fall arrest systems. Scaffold users must be trained in the recognition of the hazards associated with working on a scaffold they may be using including: the hazards of the particular scaffold that they intend to use; the nature of any fall, falling object, or electrical hazards; the correct procedures for dealing with electrical hazards and for erecting, maintaining, and disassembling the fall protection systems and falling object protection systems being used; the proper use of the scaffold and the proper handling of materials on the scaffold; the maximum intended load carrying capacities of the scaffolds used. Two feet What should you do before dismantling a scaffold? All brace connections must be secured. Employees shall be trained to demonstrate competency in the following areas: 5235 South Harper Court 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. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces 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. All scaffolds used in construction, renovation, repair (including painting and decorating), and demolition shall be erected, dismantled and maintained in accordance with this policy and procedure. Guardrail systems or guardrails are barriers erected along an unprotected or exposed side or edge of a walking-working surface 5.Use taglines if a load could swing and hit the scaffold. When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. The competent person is the shop supervisor or her/his designated representative. For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. Select the correct answer and then click DONE. A single tieback must be installed perpendicular to the face of the building or structure. unstable objects are not used to support scaffolds or platform units. PScript5.dll Version 5.2.2 What must ramps and walkways 6 feet or more above lower levels be equipped with? 2.Electrical Scaffold is not level because it was erected without base plates on an uneven surface. 1.Wear personal fall arrest systems (PFAS). Tying, guying, or bracing may be needed to assure a safe and stable scaffold assembly. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Direct access is acceptable when the scaffold is not more than 14 inches (36 centimeters) horizontally and not more than 24 inches (61 centimeters) vertically from the other surfaces. He suffered Scaffold Roles and Responsibilites Section. Environmental Health and Safety is responsible for: Departments affected by this policy are responsible for: Employees affected by this policy are responsible for complying with the practices within the Scaffold Safety policy. Nature of electrical, fall hazards and falling object hazards in the work area; Proper handling of materials on scaffolds; Proper erecting, maintaining and disassembling of fall protection systems; Proper construction, use, placement and care in handling of scaffolds; and. Maximum intended load and load-carrying capacities of scaffolds used. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). Additionally, there is no material cohesion; during a storm the material can wash away under the scaffold base plates. OA025.pdf Check to make sure frames are stacked, and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. \text { Product } \\ ). This threshold differs from 29 . Personal fall-arrest systems used on scaffolds should be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. No University employee shall design any scaffolding. Frame spacing and sill size can only be determined after the total loads to be imposed on the scaffold and the strength of the supporting soil or structure are calculated and considered. Standard guardrails (e.g., handrail and midrail) and toeboards must be provided for all open sides of the scaffolding that are ten (10) feet or more above the surrounding surfaces. Select the correct answer and then click DONE. Cross bracing is not acceptable as an entire guardrail system but is acceptable for a toprail when the crossing point of the two braces is between 38 inches (0.9 meters) and 48 inches (1.3 meters) above the work platform and for midrails when between 20 inches (0.5 meters) and 30 inches (0.8 meters) above the work platform. a.One foot a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site . Fall protection consists of either personal fall-arrest systems or guardrail systems, and must be provided on any scaffold 10 feet or more above a lower level. Included here are general requirements for all scaffolds. are positioned so that their bottom step is not more than 24 inches above the scaffold supporting level; have rest platforms at maximum vertical intervals of 12 feet; have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which must have a minimum step width of 11 inches; and, have slip-resistant treads on all steps and landings. 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . b.2 inches When employees are plastering and lathing 18 inches or less from the front edge. Sills shall be level and in full contact with the supporting surface. b.6 The scaffolding will extend twenty feet into the air. Counterweights shall be secured by mechanical means to the outrigger beams. Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. 2.A plank clip 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. d.Registered engineer, Guys, ties, or braces must be installed where horizontal members support inner and outer legs when the scaffold has a height/width ratio greater than: Select the correct answer and then click DONE. b. Platforms shall be entirely planked and decked with space not more than one inch wide between the platforms and uprights; The platform shall not deflect more than 1/60 of the span when loaded; All platforms shall be kept clear of debris or other obstructions that may hinder the working clearance on the platform; Wood planks shall be inspected to see that they are graded for scaffold use, are sound and in good condition, straight grained, free from saw cuts, splits and holes; Platforms and walkways shall be at least 18 inches in width. Final inspection of the scaffold prior to initial occupation for use. 2.Always use the proper ladder or stairs. When scaffold platforms are more than 2 feet (0.6 m) above or below a point of access, portable ladders, hook-on ladders, attachable ladders, stair towers (scaffold stairways/towers), stairway-type ladders (such as ladder stands), ramps, walkways, integral prefabricated scaffold access, or direct access from another scaffold, structure, personnel b.8 feet 10. \begin{array}{l} Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. Make sure no gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights. 1926.451(e . Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. Plasterers, decorators and large area scaffolds; Step, platform and trestle ladder scaffolds; and. By itself it is not normally a useable foundation material. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. being laid. You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. Erecting scaffolds in accordance with local, state, and federal. When horizontal lifelines are used, make sure they are being secured to two or more structural members of the scaffold. A qualified person must design all scaffolding in accordance with OSHA 29 CFR 1926.451 "General Requirements for Scaffolds" and 29 CFR 1926.452 "Additional Requirements Applicable to Specific Types of Scaffolds". An employee was on a scaffold that was being dismantled when the scaffold collapsed. Select the correct answer and then click DONE. Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. F: 773.702.6546 Scaffolding must not be placed on unstable objects, such as bricks or blocks. Check to ensure fall protection consists of either personal fall-arrest systems (PFAS) or guardrail systems meeting OSHA requirements. A competent person is an employee who is capable of identifying existing or predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has the authorization to take prompt corrective measures to eliminate these hazards. 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. 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. Before erecting a scaffold, the first step is to: a.Perform a site evaluation. Scaffolding in this Guide means the individual components, for example tubes, couplers They are frequently used in one or two tiers by residential contractors, painters, etc., but their modular frames can also be stacked several stories high for use on large-scale construction jobs. foundations are set on base plates, mud sills, and other adequate firm foundations. 3.Metal c.10 inches Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. 1926.451(e)(9) & (g) b.38 - 45 inches Damaged or deteriorated equipment shall not be used. Reviewing this policy to ensure compliance with current regulations; Reporting any questionable conditions that are discovered to the responsible department; Ensuring all affected employees are trained in accordance with this policy. Replace any missing ties or braces. Does Joel need to provide a portable ladder for his team to access the platform? It is impossible for a stable structure to be built upon a foundation that does not start out square and level. When the other end of the 2x4 slipped off the bucket, the employee did not let go of his end, and was pulled off the deck. 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. Scaffold should not be occupied while moving unless a competent person has determined it is safe to do so. At what height must employees use fall protection while working on a scaffold? Contacting and coordinating with the Competent Person regarding any issues associated with the erection of a scaffold. a scaffold must have a safe means of access to the scaffold when access is feasible and does not create a greater hazard. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. Guardrails shall be installed along the open sides and ends before releasing the scaffold for use by the employees, other than erection or dismantling crews. \text { Type of } \\ Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. d.35 feet, The top rail of a guardrail system must be installed how many inches above the platform? d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Special consideration is required when scaffolding is to be erected on fill, soft or frozen ground. All equipment shall be inspected to ensure that it is in good condition and is serviceable. No University employee shall erect scaffold greater than or equal to 20 feet. Each end of the platform, unless cleated or otherwise restrained by hooks or equivalent means, shall extend over the centerline of its support at least six inches. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. Key comparative information for Samsung, Apple, and Google follows. 4.Use cinder blocks to level the uneven ground. Direct access is acceptable when the scaffold is not more than 14 inches (36 centimeters) horizontally and not more than 24 inches (61 centimeters) vertically from the other surfaces. The roles of these trained individuals as well as apartial list of their associated responsibilites can be found below. 21 0 obj <><><>]/ON[37 0 R]/Order[]/RBGroups[]>>/OCGs[37 0 R]>>/PageLabels 15 0 R/Pages 17 0 R/Type/Catalog>> endobj 36 0 obj <>/Font<>>>/Fields 41 0 R>> endobj 18 0 obj <>stream Note: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds. Jose, a house painter, performs an inspection on the wooden planks of the scaffolding. a.18 inches 2. d. No, because the height of the platform is easily accessed from the ground, When used, hook-on and attachable ladders must be positioned so that their bottom rung is not more than how many inches above the scaffold support level? The scaffold distance between an insulated 220-volt line must be at least three feet. In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. Make sure two or more vertical lifelines are not attached to each other, or to the same point of anchorage. 1.Climb the cross braces. He fell approximately 12 feet to a concrete dock. The ground where he needs to place the footing is dry but uneven in spots. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People Fall Protection. b.Yes, because the platform is more than two feet off the ground, or point of access. b.Use the scaffolding as is. How can the components of this jury-rigged scaffold possess sufficient structural integrity? A scaffold users responsibilities include (but are not limited to): Scaffold planning, erection, and use require different levels of training. Acrobat Distiller 7.0.5 (Windows) 1926.451(e)(1) . 4.Jump from one platform to another. Giovanni arrives at a jobsite as part of a team contracted to repair ductwork. Workers are most vulnerable to fall hazards when climbing on or off a scaffold. a.2 feet a.Yes, because any height off the ground, or point of access, requires the use of a ladder or stairway. All employees who perform work on a scaffold shall be trained annually to recognize the hazards associated with the type of scaffold being used and the procedures to control or minimize those hazards. \text { Advertised } 4 It is important to inspect scaffolds and scaffold components for visible defects before each work shift and after any occurrence that could affect a scaffolds integrety. 4.Wear face masks. However, an evaluation of the deck for its maximum allowable loading would be required, since the decking or deck structure could fail under a full scaffold load. 12. c.30 feet The top edge height on supported scaffolds manufactured or placed in service before January 1, 2000, and on all suspended scaffolds where both a guardrail and a personal fall arrest system are required shall be between 36 45 inches; When mid-rails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform; When mid-rails are used, they shall be installed at a height midway between the top edge of the guardrail system and the scaffold platform; When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports; When intermediate members are used, they shall not be more than 19 inches apart; Each top rail or equivalent member of a guardrail system shall be capable of withstanding a force of at least 100 pounds for systems on single-point adjustable suspension or two-point adjustable suspension scaffolds, and at least 200 pounds for guardrail systems installed on other scaffolds; When the loads specified above are applied in a downward direction, the top edge shall not drop below the height above the platform surface required above; Mid-rails, screens, mesh, intermediate vertical members, solid panels and equivalent structural members shall be capable of withstanding a force of at least 75 pounds for systems with a minimum 100 pound top rail capacity, and at least 150 pounds for systems with a minimum 200 pound top rail capacity; Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations and prevent snagging of clothing; The ends of all rails shall not overhang the terminal posts except when such overhang does not constitute a projection hazard; Steel or plastic banding shall not be used as a top rail or mid-rail; Manila or plastic (or other synthetic) rope being used for top rails or mid-rails shall be inspected by a competent person as frequently as necessary; and. What is the most common type of supported scaffold? Is the change in Samsungs cash flow on total assets ratio favorable or unfavorable? b.Once a week \end{array} A ladder or other safe means of access must be provided. Select the correct answer and then click DONE. \text { Target } \\ All scaffolds and their components must support without failure its own weight and at least four times the maximum intended load applied or transmitted to the scaffold. a. 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. Cross braces shall not be used as a means of access. 3.Use mudsills to provide a firm foundation. A qualified person must do this analysis. Please answer all of the questions before checking your quiz answers. %PDF-1.4 % What should be Jayden's next step? Materials: Steel or plastic banding must not be used as a toprail or a midrail. The following are the requirements for specific types of scaffolds: Employee use of stilts on scaffolds is prohibited. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. c.10 feet Screw jacks with base plates shall be used to compensate for uneven ground. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Crossbraces must not be used as a means of access. TypeofAdvertisementTelevisionProductAdvertisedBlackberryTargetMarketStudents-backtoschoolProductInformationFeaturedBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections. Before erecting a scaffold, the first step is to: that apply to the following statement and then click DONE. Scaffold collapse The proper erection of a scaffold is essential in preventing this particular hazard. 13. For the current year, is Samsungs cash flow on total assets ratio better or worse than (a) Apples and After clicking the button, the questions you missed will be listed below. How can you ensure that scaffolding will automatically remain plumb, level, and square? d.12. Note: Except where indicated, these requirements also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in their applicable sections. When it is infeasible to provide a work area at least18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must still be used. Ted performed a site evaluation for the purpose of erecting scaffolding. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. Is it safe for Giovanni and his team to use the scaffolding? What is the widest gap permitted between adjacent planks or deck units, or between the platform and the uprights of a scaffold? Feet a.Yes, because a means of access must be provided to a scaffold platform and trestle ladder scaffolds ; step, and! And is ready to be erected on fill, soft or frozen ground 3.metal c.10 inches Baker,,... On fill, soft or frozen ground end supports not less than inches. A house painter, performs an inspection on the wooden planks of the questions before checking your answers! Is safe to do so permitted between adjacent planks or deck units or. State, and square, decorators and large area scaffolds ; step, and! Is 10 feet or more above lower levels be equipped with project back foundation that does not create a hazard! Than 6 inches nor more than 24 inches above the platform and trestle ladder scaffolds ; and persons... A.One foot a safe and stable scaffold assembly the right to refuse to the... 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