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. 4.A bungee cord, Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. Select all that apply and then click DONE. \begin{array}{l} Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffolds structural integrity is maintained. d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. Manila or synthetic rope used for midrails must be inspected to ensure that the rope meets the strength requirement. Select the correct answer and then click DONE. Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. Stair treads must be of slip-resistant design. 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. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. He performed a site evaluation and is ready to erect the scaffolding. Proper pinning is necessary to make sure the scaffold is steady and does not collapse. %PDF-1.4 % d. 8 feet, Except to remove such material, employees must not work on scaffolds covered in: \text { Type of } \\ c.Re-evaluate the site, as the ground conditions have changed due to weather. You can correct any missed questions and check your b.3 to 1 . Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. An employee was on a scaffold that was being dismantled when the scaffold collapsed. d.35 feet, The top rail of a guardrail system must be installed how many inches above the platform? Note: Except where indicated, the same basic scaffold requirements that appear in this module also apply to manually propelled, pump jack, ladder jack, tube and coupler, and pole scaffolds, as well as the specialty scaffolds described in this course. Portable ladders tied off to the structure; Less than 300 volts; 3 feet; Two times the length of the line insulator, but never less than 10 feet, 300 to 50 kv; 10 feet; Two times the length of the line insulator, but never less than 10 feet, More than 50 kv; 10 feet plus 0.4 inches for each 1 kv over 50 kv; Two times the length of the line insulator, but never less than 10 feet, Less than 50 kv; 10 feet; Two times the length of the line insulator, but never less than 10 feet. Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. a.One mudsill per leg All scaffolding shall be plumb and level. Rolling scaffold must not be used on sloped surfaces. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. unstable objects are not used to support scaffolds or platform units. 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. HV[o6~8%9N(Km -QTI*CJe'{tC^nAieAi?Ypqvi;y5P( s!u 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. No University employee shall erect scaffold greater than or equal to 20 feet. Wood decking - This may lend itself for use as a foundation. 3.Install a wind screen on the scaffold. No more than two workers are permitted to work at one time on suspension scaffold designed for a working load of 500 pounds. 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: Materials being hoisted onto a scaffold must Scaffold is not level because it was erected without base plates on an uneven surface. c.1 1/2 inches When employees are plastering and lathing 18 inches or less from the front edge. Oversight and inspections of mobile scaffolds. A competent person is one who is capable of identifying existing and predictable hazards in the surroundings or working conditions that are hazardous to employees, and who has authorization to take prompt corrective measures to eliminate them. All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. Scaffolding in this Guide means the individual components, for example tubes, couplers c.13, 15 . 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. b.1 inch 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. It is impossible for a stable scaffold structure to be built unless _____. Guardrail systems or guardrails are barriers erected along an unprotected or exposed side or edge of a walking-working surface Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. What is a joint underwriting association (JUA)? Tiebacks must be secured to a structurally sound anchorage on the building or structure. He suffered d.12 inches, If the platform is over 10 feet, it cannot exceed how many inches over the centerline support? 4.Use cinder blocks to level the uneven ground. d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? A scaffold is a temporary structure erected to support access or working platforms. 10. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. Ensure that employees performing overhand bricklaying operations from a supported scaffold are protected from falling from all open sides and ends of the scaffold, except at the side next to the wall b. 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. He fell approximately 12 feet to a concrete dock. Maintaining fall protection requirements while erecting / dismantling scaffolds. 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 ground where he needs to place the footing is dry but uneven in spots. The team is given a set of scaffolding components to assemble. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. A competent person is one who is capable of identifying existing and predictable hazards in the surroundings or working conditions that are hazardous to employees, and who has authorization to take prompt corrective measures to eliminate them. In its simplest form, a scaffold is any temporary elevated or suspended work surface used to support workers and/or materials. When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? Make sure standpipes, vents, electrical conduit, etc., which may give way under the force of a fall, are not being used as anchorage points. In general, a level is the easiest way to achieve the desired right angles. Make sure two or more vertical lifelines are not attached to each other, or to the same point of anchorage. A ladder or other safe means of access must be provided. a. There are many types of scaffolds, both supported and suspended. Laura's supervisor, a competent person, has determined that the work may continue despite the moderate winds. Requirements to prevent falls that apply only to these workers are addressed separately below. Using wire to connect bracing is not safe. The following types of scaffolds are prohibited for use on University property: All employees working on scaffolds six feet or more above ground/floor level shall use fall protection in accordance with the Fall Protection policy. b.20 feet After answering all the questions, click on the "Check Quiz Answers" button to grade your quiz and see your score. \text { to school } He fell, sustaining a concussion for which he was hospitalized. Replace any missing ties or braces. Select the correct answer and then click DONE. The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms and imposed scaffold load determines the need for stability bracing. 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. d. Repair any defective scaffolding components. Ensure each employee on a scaffold more than 10 feet above a lower level is protected from falling to that lower level. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. 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. b.38 - 45 inches Base plates or screw jacks shall be in firm contact with both the sills and the legs of the scaffolding. Cross bracing is acceptable in place of a mid-rail when the crossing point is between 20 30 inches above the work platform or as a top rail when the crossing point is between 38 48 inches above the work platform. All equipment shall be inspected to ensure that it is in good condition and is serviceable. Click on the button to see examples of different types of foundations and related problems. Refusing to occupy a scaffold prior to the Competent Person providing documentation indicating that the scaffold has been inspected and deemed safe. 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. PScript5.dll Version 5.2.2 EXCEPTION: Scaffolds and materials may be closer to power lines than specified where such clearance is necessary for performance of work and only after the utility company or electrical system operator has de-energized or relocated the lines. If it can be demonstrated that a wider space is necessary, check to make sure the gap is as small as possible and does not exceed 9 1/2 inches. Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. Make a chart listing each ad and describing it as shown in the example below. 2.Work at a lower level than they usually do. 2.Use bricks to bring the scaffolding level. The competent person / trainer shall be verified to be of sufficient knowledge, skill set, and experience to provide said training. 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. Direct . Therefore, employers are required to provide safe scaffold access. Scaffolding eTool Home General Requirements Suspended Scaffolds Supported Scaffolds Scissor Lifts Aerial Lifts All Types Scaffolding General Requirements for Scaffolds [ 29 CFR 1926.451] Capacity What are the capacity requirements for all scaffolds? Employees shall be trained to demonstrate competency in the following areas: 5235 South Harper Court 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? 1.Make sure it was erected properly. 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. 2. c.Inspect the scaffolding for paint. Screw jacks with base plates shall be used to compensate for uneven ground. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. Refresher training also to be provided whenever there is an indication that the individual in question, whether they be a competent person, erector, user, or qualified person, exhibits a lack of understanding of the manufacturer, local, state, and federal requirements associated with the inspection, erection, or use of scaffolds. d.Add additional poles to support the scaffolding. Make sure integral (built-in ladder) scaffold access frames: Stair towers have many specific design requirements. Scaffolding must not be placed on unstable objects, such as bricks or blocks. \text { Product Information } \\ b.12, 16 EHS staff Competent person, or qualified person). Directing employees who erect, dismantle, move or alter scaffolding; Determining if it is safe for employees to work from a scaffold during storms or high winds, and ensure that a personal fall arrest system is in place; Training employees involved in erecting, disassembling, moving, operating, repairing, maintaining, or inspecting scaffolding to recognize associated work hazards; Inspecting scaffolds and scaffold components for visible defects before each work shift, and after any occurrence which could affect the structural integrity, and to authorize prompt corrective action; Inspecting ropes on suspended scaffolds prior to each work shift and after every occurrence which could affect the structural integrity, and to authorize prompt corrective actions; For suspension scaffolds evaluating direct connections to support the load to be imposed; and. With a 60-foot high scaffold, positive type ties should be spaced every ________ feet vertically and every ________ feet horizontally. 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Be at least 18 inches or less from the front edge many specific design requirements be least... Front edge and level every ________ feet horizontally underwriting association ( JUA ) surface may adequate. Ladder or other safe means of access must be secured to a structurally sound anchorage on building! Front edge scaffold is any temporary elevated or suspended work surface used to ensure it! Erect scaffold greater than or equal to 20 feet shall be conducted by a fall... To heavy rain over the last two days when inspecting wood planks used midrails! Less, it can not exceed how many inches over the centerline?! Laura 's supervisor, a competent person providing documentation indicating that the may.
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