a.18 inches After answering all the questions, click on the "Check Quiz Answers" button to grade your quiz and see your score. What is a joint underwriting association (JUA)? b.2 inches Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. Select all that apply and then click the DONE button. How much weight should a supported scaffold and components be capable of supporting without failure? A list of competent persons will be maintained by the department and additional refresher type training will be provided on an as needed basis. While inspecting during scaffold erection and dismantling, make sure safe access for employees erecting or dismantling supported scaffolds is provided where it is feasible, and where it does not create a greater hazard. Select the correct answer and then click DONE. What is the widest gap permitted between adjacent planks or deck units, or between the platform and the uprights of a scaffold? Its important to make sure all bracing on a scaffold has been properly constructed to make sure the scaffold does not collapse. 2012-10-05T11:53:02-04:00 Cross braces shall not be used as a means of access. Specific requirements are described below. a scaffold must have a safe means of access to the scaffold when access is feasible and does not create a greater hazard. 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. c.30 feet He performed a site evaluation and is ready to erect the scaffolding. Scaffold is not level because it was erected without base plates on an uneven surface. Acrobat Distiller 7.0.5 (Windows) 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. 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. 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. How can you ensure that scaffolding will automatically remain plumb, level, and square? a.5 \end{array} 3.Avoid kicking or knocking items off the scaffold. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. 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. c.Inspect the scaffolding for paint. Personal fall-arrest systems used on scaffolds should be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. 4.Chemical burns 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. 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. The electronic address to view or download a copy as found on OSHA's Website is www.osha.gov. d. Repair any defective scaffolding components. Based on your research, what conclusions can you draw about the type of media used to advertise various products? Select all that apply and then click DONE. 4. c.Four times The following table provides the clearance distances between scaffolds and power lines, or any other conductive material, while being erected, used, dismantled, altered or moved. 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. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffolds structural integrity is maintained. 2.Toss tools and other items from the scaffold. Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. Be sure employees are able to safely access any level of a scaffold that is 2 feet above or below an access point. Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. HV[o6~8%9N(Km -QTI*CJe'{tC^nAieAi?Ypqvi;y5P( s!u to prevent falls. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. b. d.Add additional poles to support the scaffolding. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. At all points of a scaffold where the platform changes direction, such as turning a corner, any platform that rests on a bearer at an angle other than a right angle shall be laid first, and platforms which rest at right angles over the same bearer shall be laid second, on top of the first platform. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). Select all that apply and then click DONE. 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. What do you need to do with a ladder that is defective? 2.Always use the proper ladder or stairs. b. Check that steps and rungs of ladders and stairway-type ladders line up vertically with each other between rest platforms. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. 3.Falling objects Barbara and her team erected scaffolding outside of a building earlier this week. c.No, because the platform is less than three feet from the ground, or point of access. b.18 inches An access ladder or equivalent safe access must be provided. Oversight and inspections of mobile scaffolds. The number one scaffold hazard is worker falls. 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. 1.Snow O>wk`2^Ln?5NVqo Q|:i=p*/ FibrPP am0kk&LHQ7H>An2>8BMg,8i,k8Gx:`(U8B+@2If%) G:t'%$]VMc\RIq N4okHR-YK{_G_,P_1dmhzRsT,kw%SRmfV7_pDf*T7,c \79bj!1}dpB~9V&co7Sj. A scaffold can be overloaded by removing the braces, which causes the weight on the scaffold to be distributed to fewer structural members. A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? 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. For a scaffold to be safe, it must be erected: . 2. Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. At what height must employees use fall protection while working on a scaffold? b.6 Does Joel need to provide a portable ladder for his team to access the platform? Which of the events increase potential GDP and which decrease it? He fell 16 feet to the ground, sustaining facial fractures and other injuries. A scaffold users responsibilities include (but are not limited to): Scaffold planning, erection, and use require different levels of training. Check to make sure scaffold components made of dissimilar metals are not used together, unless a competent person has determined that galvanic action will not reduce the strength, through corrosion, of any component below OSHA standards. 1.Use gravel to fill in the uneven spots. 2.Use bricks to bring the scaffolding level. The team has been unable to work on the project due to heavy rain over the last two days. 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. Click on the button to see examples of different types of foundations and related problems. The scaffold and its components must be capable of supporting four times the rated load. Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. 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 Included here are general requirements for all scaffolds. 2.Rubber Laura's supervisor, a competent person, has determined that the work may continue despite the moderate winds. Materials being hoisted onto a scaffold must Is the change in Samsungs cash flow on total assets ratio favorable or unfavorable? d. 14 feet, What must be worn at all times while working from scaffolding? d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? 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. Scaffolds and components must be able to support at least four times the intended load. Cross braces shall not be used as a means of access. Hot asphalt paving (summer) - This type of asphalt (top coat) is soft when placed and then compacted with rollers. \end{array} & \begin{array}{l} 9. 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.). 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. The ground where he needs to place the footing is dry but uneven in spots. Work shall not be permitted during high winds. Utilizing scaffolds in accordance with all local, state, federal, manufacturer, and institutional rules and regulations. Materials: Steel or plastic banding must not be used as a toprail or a midrail. Guardrails and/or personal fall arrest systems must be used when the scaffold work area is _____. Maintaining fall protection requirements while erecting / dismantling scaffolds. What are the main hazards associated with erecting, dismantling, and working on scaffolds? Tiebacks must be secured to a structurally sound anchorage on the building or structure. 8 The footing of scaffolding must be sound and rigid, capable of supporting the weight. When horizontal lifelines are used, make sure they are being secured to two or more structural members of the scaffold. front-end loaders and similar pieces of equipment are not used as support scaffold platforms, unless they have been specifically designed by the manufacturer for such use. The most frequent fall-from-elevation accident is a fall off ladders. c.6 feet 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. Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? The end points at each upright shall be no more than 48 inches. Make sure all brace connections are properly secured to prevent dislodging. Insulated Lines; Voltage Minimum; Distance Alternatives, Uninsulated Lines; Voltage Minimum; Distance Alternatives. b.Use the scaffolding as is. Each worker 10 feet (3.1 meters) above a lower level must be protected from falling by a personal fall arrest system when working from a boatswain's chair, ladder jack, needle beam, float, or catenary scaffolds. Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. or strike the scaffold with tools, materials, etc. Select the correct answer and then click DONE. d.Choose access points. When are workers on scaffolding most vulnerable to fall hazards? 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 You will receive a message if you forgot to answer one of the questions. a.Yes, because any height off the ground, or point of access, requires the use of a ladder or stairway. While sitting or kneeling on a fixed deck plank attached to a fabricated frame scaffold, a worker was pulling a 16-foot long 2x4 off the bucket of an excavator. Scaffold Platform Construction What are scaffold platform construction requirements? Replace any missing ties or braces. 4.Use tow lines to raise or lower tools and equipment. 32 - 36 inches Contact EHS for assistance and guidance in any of the duties associated with being a Competent Person. Manila or synthetic rope used for midrails must be inspected to ensure that the rope meets the strength requirement. Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. Workers are most vulnerable to fall hazards when climbing on or off a scaffold. must be plumb (exactly vertical) and braced to prevent swaying and displacement. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. Scaffolding is widely used during construction and renovation activities. 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. 2.Electrical Single-point adjustable suspension scaffolds. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. Jayden and his crew are anxious to begin erecting scaffolding at the new job site. Tiebacks must not be secured to standpipes, vents, other piping systems, or electrical conduit. 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. \end{array} b.3 to 1 Independent lifelines should be protected from abrasion and wear. S/N 869-034-00107-6; cost $30 (foreign $37.50). All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. a. Dismantle the scaffolding. a. 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. Training of other competent persons, scaffold erectors, and users. 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. All scaffolding to be used on University property shall be tubular scaffolding designed by manufacturers approved by Underwriters Laboratory (UL) and/or OSHA and be in a ready-to-assemble state. multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. 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. [29 CFR 1926.451 (e) (1)] 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 . One means to support students is through the use of language scaffolds, which temporarily support students' language use in the classroom. b.Dismantle the scaffolding. Exceptions: Guardrails are not required when: the front end of all platforms are less than 14 inches (36 centimeters) from the face of the work; outrigger scaffolds are 3 inches (8 centimeters) or less from the front edge; or, employees are plastering and lathing 18 inches (46 centimeters) or less from the front edge. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? Make sure no ramp or walkway inclines more than 1:3 (1 vertical to 3 horizontal, or 20 degrees above the horizontal). 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. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People \text { discount; pink or silver; } \\ 1.Climb the cross braces. 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. Should he use those planks? In order to assure scaffold stability, make sure: Note: One way to ensure a stable foundation when a sill is used is to secure it to the baseplate. Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. Platforms shall be constructed as follows: Scaffold components made of dissimilar metals shall not be used together unless a competent person has determined that galvanic action will not reduce the strength of any component. Giovanni arrives at a jobsite as part of a team contracted to repair ductwork. d.Once a month, A personal fall arrest system must limit free fall to how many feet or less? c.Long sleeve shirts The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. The weather has been an issue and has pushed the project back. \text { Advertisement } b. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Refusing to occupy a scaffold prior to the Competent Person providing documentation indicating that the scaffold has been inspected and deemed safe. 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. Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. The front end of all platforms are less than 14 inches from the face of the work; and. Sills shall be level and in full contact with the supporting surface. Remove ties and braces. 09/18/2013. d.6 inches, A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? c.10 Scaffolding must not be placed on unstable objects, such as bricks or blocks. 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. a that apply to the following statement 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. Erecting scaffolds in accordance with local, state, and federal. This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. With a 60-foot high scaffold, positive type ties should be spaced every ________ feet vertically and every ________ feet horizontally. No University employee shall erect scaffold greater than or equal to 20 feet. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. c.10 inches d.12. 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. Scaffolds shall be erected, moved or disassembled only under the supervision of qualified persons. What should be Jayden's next step? Select the correct answer and then click DONE. 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 scaffolding will extend twenty feet into the air. 1926.451 (b) (9) Jose, a house painter, performs an inspection on the wooden planks of the scaffolding. 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