Select the correct answer and then click DONE. 4.Chemical burns What must ramps and walkways 6 feet or more above lower levels be equipped with? unstable objects are not used to support scaffolds or platform units. The means of access must be determined before erection of the scaffold and employees are never allowed to climb on cross braces for either vertical or horizontal movement. Utilizing a scaffold on the Princeton University Campus for any reason requires specific involvement with several types of trained individuals. Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. Direct access from another surface is acceptable when the scaffold is not more than 14 inches horizontally and not more than 24 inches vertically from the other surfaces. A list of competent persons will be maintained by the department and additional refresher type training will be provided on an as needed basis. 1926.451(e)(9) & (g) 3.Use mudsills to provide a firm foundation. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. All scaffolding shall be plumb and level. Select the correct answer and then click DONE. Independent lifelines should be protected from abrasion and wear. This creates a dangerous situation during the freeze/thaw cycle (which can occur in the course of a day) causing the soil to swell or settle and may not result in a level rigid footing. Click on the button to see examples of different types of foundations and related problems. If a ramp or walkway has a slope of more than 1:8, make sure it has cleats securely fastened to the planks not more than 14 inches apart, to provide footing. a 1 b 2 c 3 d 4 Note: Platforms may be coated periodically with wood preservatives, fire retardants, and slip-resistant finishes, provided they do not obscure the top or bottom wood surfaces. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. Do not force members to fit. 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. 2012-10-05T11:53:02-04:00 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. Scaffolds must be plumb, level, and squared. \end{array} The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. Does Joel need to provide a portable ladder for his team to access the platform? The team cannot wait any longer for the weather to clear. c.Anyone 1.Store materials away from the edge. ). 4. S/N 869-034-00107-6; cost $30 (foreign $37.50). Ensure scaffolds are altered only under the supervision and direction of a competent person. Sand, gravel, masonry units, rolls of roofing felt, and other such materials shall not be used as counterweights. A single tieback must be installed perpendicular to the face of the building or structure. Key comparative information for Samsung, Apple, and Google follows. Select the correct answer and then click DONE. F: 773.702.6546 Select the correct answer and then click DONE. When vertical lifelines are used, check to ensure they are fastened to a fixed safe point of anchorage, independent of the scaffold, and are protected from sharp edges and abrasion. 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. \text { Advertisement } Cross braces shall not be used as a means 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. A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? 1926.451 (b) (9) Be sure employees are able to safely access any level of a scaffold that is 2 feet above or below an access point. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. 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. 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: Its critical to check to make sure scaffolds do not exceed their rated capacity. 4 feet Training employees working on the scaffolds to recognize the associated hazards and understand procedures to control or minimize those hazards; and. Damaged or deteriorated equipment shall not be used. 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). c.6 feet d. Four feet. Compacted Soils & Then Frozen - Compacted soils, as with all soils, swell and heave due to moisture content or water contained within the soil. Guardrail systems or guardrails are barriers erected along an unprotected or exposed side or edge of a walking-working surface a.Steel-toed boots Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Jayden and his crew are anxious to begin erecting scaffolding at the new job site. d.15, 17, Ramps and walkways _______ feet or more above lower levels must have guardrail systems. Check to ensure safe points of anchorage, such as structural members of buildings, are being used. This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Select the correct answer and then click DONE. Contacting EHS if there is a concern regarding the erection of the scaffold. 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. c.Long sleeve shirts . Included here are general requirements for all scaffolds. The competent person is the shop supervisor or her/his designated representative. Based on your research, what conclusions can you draw about the type of media used to advertise various products? The standard requires employers to protect each employee on a scaffold more than 10 feet (3.1 m) above a lower level from falling to that lower level. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces c.After it has been used uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 a.Two times 4.A bungee cord, Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. Note: Except where indicated, these . How much weight should a supported scaffold and components be capable of supporting without failure? Scaffold Roles and Responsibilites Section. Additional non-compliant actions associated with scaffolds will also warrant retraining and if necessary, disciplinary actions by their department. 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. \begin{array}{l} 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. The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. Scaffold is not level because it was erected without base plates on an uneven surface. b.6 No University employee shall erect scaffold greater than or equal to 20 feet. Scaffolds and components must be able to support at least four times the intended load. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. 8 inches 2.Always use the proper ladder or stairs. 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. What are supported scaffold foundations set on to ensure stability? d. Repair any defective scaffolding components. 10, 15 Because frame scaffolds are the most common type of supported scaffold, this course uses the Fabricated Frame Scaffold to describe requirements that are common to all supported scaffolds. 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 2.Toss tools and other items from the scaffold. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 meters) above or below a point of access. 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. d.Five times, Which would provide a more stable foundation? Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. 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". Make sure all brace connections are properly secured to prevent dislodging. Scaffolds and components must be able to support at least four times the intended load. 1.Slips and falls Please answer all of the questions before checking your quiz answers. 2. What are integral (built-in) access frames specifically designed for? Ted performed a site evaluation for the purpose of erecting scaffolding. 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . Scaffold Training Institute or similar vendor). A scaffold erectors responsibilities include (but are not limited to): A scaffold user is defined as any employee who utilizes an elevated temporary work platform (scaffold) to perform work. 2.A plank clip 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. He suffered A self-supporting scaffold is one or more work platforms supported from below by outriggers, brackets, poles, legs, uprights, posts, frames or similar rigid supports. the forklift is not moved horizontally while the platform is occupied. 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. Hot asphalt paving (summer) - This type of asphalt (top coat) is soft when placed and then compacted with rollers. 3.Install a wind screen on the scaffold. Tying, guying, or bracing may be needed to assure a safe and stable scaffold assembly. Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. When erecting and dismantling tubular, welded-frame scaffolds, and end frames are used as climbing devices for access, make sure: Horizontal members are parallel, level, and not more than 22 vertical inches apart. Two tiebacks installed at opposing angles are required when a perpendicular tieback cannot be installed. He performed a site evaluation and is ready to erect the scaffolding. Sills shall be level and in full contact with the supporting surface. Select the correct answer and then click DONE. 1.Use gravel to fill in the uneven spots. This must be done prior to initial use of the scaffold each shift. 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. Scaffolding in this Guide means the individual components, for example tubes, couplers Designing components in accordance with design specifications. Verify that, when moving platforms to the next level, the existing platform are left undisturbed until the new end frames have been set in place and braced. Wood decking - This may lend itself for use as a foundation. Contacting and coordinating with the Competent Person regarding any issues associated with the erection of a scaffold. \end{array} & \begin{array}{l} Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. Before erecting the scaffold, a number of factors must be accounted for. What is the most common type of supported scaffold? Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. 6 inches The platform of a two-point suspension scaffold must not be more than 36 inches wide unless designed by a qualified person, and must be surrounded with a standard guardrail and toe board. b.Incompetent person Read the material in each section to find the correct answer to each quiz question. The competent person would need to know the individual scaffold base plate loading and if each one is below the maximum allowable deck loading. Load carrying information on components is available from the scaffold manufacturer. What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? Select the correct answer and then click DONE. The footing of scaffolding must be sound and rigid, capable of supporting the weight. c.40 - 48 inches 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. Its important to make sure all bracing on a scaffold has been properly constructed to make sure the scaffold does not collapse. 11. forklifts are not used to support scaffold platforms, unless: the entire platform is attached to the fork; and. Maximum intended load and load-carrying capacities of scaffolds used. Make sure scaffold components manufactured by different manufacturers are not intermixed, unless they fit together without being forced and the scaffold's structural integrity is maintained. Both A & B (Hooks & Safety latches) Hoists shall be: All of the above Daily inspections need to include: Checking of the wire rope for damage or "caging" Hoists shall be inspected: Daily, prior to use Do not perform maintenance on a conveyor until: All hazardous energies are disconnected and blocked 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. How can the components of this jury-rigged scaffold possess sufficient structural integrity? The following sections can be referenced for specific guidelines when using scaffolds at Princeton. 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. d. 14 feet, What must be worn at all times while working from scaffolding? Laura and her team are on a deadline to finish a construction project. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. Note: A level should be used during assembly to make sure new structural components remain in line. Select all that apply and then click DONE. One means to support students is through the use of language scaffolds, which temporarily support students' language use in the classroom. Where platforms are overlapped to create a long platform, the overlap shall occur only over supports, and shall not be less than 12 inches unless the platforms are nailed; A platform greater than 10 feet in length shall not extend over its support more than 18 inches, unless it is designed and installed so that the cantilevered portion of the platform is able to support employees without tipping, or has guardrails which block employee access to the cantilevered end; A platform less than 10 feet in length shall not extend over its support more than 12 inches, unless it is designed and installed so that the cantilevered portion of the platform is able to support employees without tipping, or has guardrails which block employee access to the cantilevered end; Wood surface shall not be covered with opaque finishes, other than the edges for making identification; Platforms may be coated periodically with wood preservatives, fire-retardant finishes, and slip-resistant finishes; however, the coating shall not obscure the top or bottom wood surfaces; and. Scaffolds are never as safe as the foundations they are built on. In the event of an emergency, please call 123 from any campus phone or 773.702.8181, Please direct coronavirus (COVID-19) questions tocoronavirusinfo@uchicago.edu. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. Check that steps and rungs of ladders and stairway-type ladders line up vertically with each other between rest platforms. For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. Ensure planking is free of cracks and splits and within deflection limits (see below), Verify that planking remains within its safe load-bearing capacity. Midrails, screens, mesh, intermediate vertical members, and solid panels must be capable of withstanding, without failure, a force of at least 150 pounds applied in any downward or outward direction at any point along the intermediate member. Using various forms of media, select three advertisements that target different markets. Manila or synthetic rope used for top rails must be inspected to ensure that the rope meets the strength requirement. 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. b.3 to 1 d.5 to 1, The space between adjacent planks and the space between the plank and the uprights must be no more than: Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. 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. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. c.Inspect the scaffolding for paint. Training of other scaffold users if needed. 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. Stationary scaffolds over 125 feet in height and rolling scaffolds over 60 feet in height shall be designed by a professional engineer. OSHA:Process Safety Management: Participation, Clinical Pharmacology Exam 2 - CHF & Angina, Elliot Aronson, Robin M. Akert, Timothy D. Wilson, Unternehemensfinanzierung in der EU und in de. Work shall not be permitted during high winds. 904-01 Scaffolding must not be placed on unstable objects, such as bricks or blocks. 5. A mobile ladder stand may also have handrails and is designed for use by one employee at a time. In such cases, verify that the platforms are as wide as feasible, and fall protection is provided. Make sure portable, hook-on, and attachable ladders are positioned so as not to tip the scaffold. It is impossible for a stable scaffold structure to be built unless _____. The department will designate, identify, and provide training for competent persons within the department. a.2 feet The electronic address to view or download a copy as found on OSHA's Website is www.osha.gov. Final inspection of the scaffold prior to initial occupation for use. Fall Protection. 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