Select the correct answer and then click DONE. a.Steel-toed boots 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. 6. Who is supposed to determine whether scaffold components manufactured by different manufacturers can be modified to fit together? d.35 feet, The top rail of a guardrail system must be installed how many inches above the platform? 2012-10-05T11:53:02-04:00 Direct . 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. Select the correct answer and then click DONE. 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . Hard hats d.Add additional poles to support the scaffolding. As they return to the site to continue their work, the first step they should take is to: 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. 4.Jump from one platform to another. Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. [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 . a.One mudsill per leg uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 Included here are general requirements for all scaffolds. Laura and her team are on a deadline to finish a construction project. c.Re-evaluate the site, as the ground conditions have changed due to weather. Scaffold should not be occupied while moving unless a competent person has determined it is safe to do so. \text { discount; pink or silver; } \\ 2. Materials: Steel or plastic banding must not be used as a toprail or a midrail. 2008-02-28T15:30:48-05:00 The use of shore scaffolds and lean-to-scaffolds is strictly prohibited. 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. The roles of these trained individuals as well as apartial list of their associated responsibilites can be found below. c.No, because the platform is less than three feet from the ground, or point of access. Stationary scaffolds over 125 feet in height and rolling scaffolds over 60 feet in height shall be designed by a professional engineer. Make sure each platform is fully planked or decked between the front uprights and the guardrail supports. No University employee shall design any scaffolding. . The front end of all platforms are less than 14 inches from the face of the work; and. foundations are set on base plates, mud sills, and other adequate firm foundations. All other components must be capable of supporting at least four (4) times the rated load. 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. \text { Type of } \\ d. Four feet. To protect against falling objects, screens must be installed between the toeboard and midrail if anyone is required to pass under the scaffolding. Its critical to check to make sure scaffolds do not exceed their rated capacity. \text { Target } \\ Make sure employees do not use cross-braces as a means of access. Select the correct answer and then click DONE. \end{array} & \begin{array}{l} Scaffold platforms above one section high must be provided with safe access. b.38 - 45 inches Select the correct answer and then click DONE. Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. Scaffolds must be plumb, level, and squared. Select the correct answer and then click DONE. Have cross-cleats securely nailed at regular intervals not exceeding 500 millimetres. Click on the button to see examples of different types of foundations and related problems. b.Use the scaffolding as is. d. 14 feet, What must be worn at all times while working from scaffolding? 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. a.1.5 inches You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People (1) A type of supported scaffold set on wheels or casters (2) A simple device consisting of a platform resting on brackets attached to a ladder (3) A uniquely designed scaffold consisting of a platform supported by moveable brackets on vertical poles (1)Mobile Scaffold (2) Ladder Scaffold (3) Pump Jack Scaffold Cross braces shall not be used as a means of access. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. Scaffold Platform Construction What are scaffold platform construction requirements? All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. d.Choose access points. c.10 Which of the events increase potential GDP and which decrease it? Outriggers must be used on narrow frame type scaffolds (i.e. Contact EHS for assistance and guidance in any of the duties associated with being a Competent Person. c.10 inches Scaffolding must not be placed on unstable objects, such as bricks or blocks. b.Two feet 4 feet Rolling scaffold must not be used on sloped surfaces. b.6 \text { Blackberry Pearl; } \$ 20 \\ Specific requirements are described below. 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. d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? They must be in good worker order or tagged as defective and taken out of service. a.15 feet This scaffold has no guardrails and is not fully planked. This scaffold is overloaded and planks are strained. 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. \end{array} 4.Use cinder blocks to level the uneven ground. a.5 feet Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. No more than three workers are permitted to work at one time on suspension scaffolds with a working load of 750 pounds. has not been allowed to accumulate on the platform. What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site . The department will designate, identify, and provide training for competent persons within the department. c.20 inches . What should you do before dismantling a scaffold? being laid. What do you need to do with a ladder that is defective? Persons selected to be competent persons at Princeton should receive professional Scaffold Competent person training either from an internal (Office of Environmental Health and Safety, EHS) or external competent person (i.e. d. 8 feet, Except to remove such material, employees must not work on scaffolds covered in: Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. Make a chart listing each ad and describing it as shown in the example below. a.5 2. Uplift is the separation of a frame from the frame below it. Scaffolding must not be placed on unstable objects, such as bricks or blocks. All scaffolding shall have toe boards, screens, a guardrail system and/or debris nets as determined by a competent person. 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. \text { Students-back } \\ The footing of scaffolding must be sound and rigid, capable of supporting the weight. The ground where he needs to place the footing is dry but uneven in spots. b.Incompetent person \end{array} \\ Only the base coat gives the asphalt compressive strength.1. 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. 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 end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. \hline \text { Television } & \text { Blackberry } & \begin{array}{l} Select all that apply and then click DONE. In such cases, verify that the platforms are as wide as feasible, and fall protection is provided. 1926.451(e)(9) & (g) What are supported scaffold foundations set on to ensure stability? Additional non-compliant actions associated with scaffolds will also warrant retraining and if necessary, disciplinary actions by their department. a.2 to 1 The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. b.2 inches Check hook-on and attachable ladders to be sure they are specifically designed for use with the type of scaffold on which they are used. 3. \end{array} & \begin{array}{l} Based on your research, what conclusions can you draw about the type of media used to advertise various products? Planks are stamped for scaffold approved loading and usage on one end. 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. After clicking the button, the questions you missed will be listed below. Select the correct answer and then click DONE. the forklift is not moved horizontally while the platform is occupied. Chicago, Illinois 60615, T: 773.702.9999 b.3 to 1 When are workers on scaffolding most vulnerable to fall hazards? 7. Maximum intended load and load-carrying capacities of scaffolds used. He notices that there have been several large spills of paint over them. Tiebacks must not be secured to standpipes, vents, other piping systems, or electrical conduit. Select all that apply and then click the DONE button. The team cannot wait any longer for the weather to clear. Then this must be inspected when conditions change, such as sunny conditions, warming temperatures, etc. Maintaining fall protection requirements while erecting / dismantling scaffolds. Check to ensure safe points of anchorage, such as structural members of buildings, are being used. A mobile ladder stand may also have handrails and is designed for use by one employee at a time. \text { use to get e-mail, surf the } \\ 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. 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 Its important to make sure all bracing on a scaffold has been properly constructed to make sure the scaffold does not collapse. a. This must be done prior to initial use of the scaffold each shift. 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. 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. a 1 b 2 c 3 d 4 Environmental Health and Safety Before each use 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. Stairs must be at least 18 inches wide and have a landing platform at least 18 inches long at each level. a.Competent person Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. Ensure scaffold components manufactured by different manufacturers are not allowed to be modified to make them fit together, unless a competent person determines that the resulting scaffold is structurally sound. d.12. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Examining the scaffold tag (which should be affixed near the access point) to verify that a competent person has deemed the scaffold safe for use. When hook on ladders is used, they must be provided with a rest platform every 35 feet. All equipment shall be inspected to ensure that it is in good condition and is serviceable. Ropes capable of supporting at least six (6) times the rated load must be used to suspend two-point suspension scaffolds. c.13, 15 Training of other competent persons, scaffold erectors, and users. 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 guardrail system must not deflect to a height less than 39 inches. Two feet What should you do before dismantling a scaffold? a.One foot 1.Snow Select the correct answer and then click DONE. Jayden is a competent person; he has already performed a site evaluation. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces 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. The end points at each upright shall be no more than 48 inches. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Only authorized scaffold erectors can erect scaffolds on campus. a.Begin to erect the scaffolding. Personal fall-arrest systems used on scaffolds should be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. After answering all the questions, click on the "Check Quiz Answers" button to grade your quiz and see your score. Therefore, employers are required to provide safe scaffold access. In its simplest form, a scaffold is any temporary elevated or suspended work surface used to support workers and/or materials. 9. 1.Slips and falls Make sure wooden planking is covered with opaque finishes, except that platform edges may be marked for identification. Ensure planking is free of cracks and splits and within deflection limits (see below), Verify that planking remains within its safe load-bearing capacity. Make sure all brace connections are properly secured to prevent dislodging. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. Employers must ensure that: b. 10. 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). 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. 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. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. He fell approximately 12 feet to a concrete dock. Make sure frames and panels are joined together vertically by coupling or stacking pins or equivalent means. Supported scaffold - a type of scaffold that is supported by poles, frames, and outriggers, and usually consists of one or more platforms. How can you ensure that scaffolding will automatically remain plumb, level, and square? c.Four times Prior to occupation scaffold erectors must notify the competent person that the scaffold has been erected and is ready to be inspected. a.18 inches footings are capable of supporting the loaded scaffold without settling or displacement. a.Two times 8 inches Before erecting a scaffold, the first step is to: that apply to the following statement and then click DONE. Erectors can solicit materials and components from other employees who may be on the ground, but the ultimate adding / subtracting of components to a scaffold shall be accomplished by an authorized scaffold erector. 3.Avoid kicking or knocking items off the scaffold. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. Ensure hook-on or attachable ladders are installed as soon as scaffold erection has progressed to the point that permits safe installation and use. Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. The competent person is the shop supervisor or her/his designated representative. Before erecting a scaffold, the first step is to: a.Perform a site evaluation. 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. Cross braces shall not be used as a means of access. Select all that apply and then click DONE. 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. It is impossible for a stable scaffold structure to be built unless _____. 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. 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. 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: c.Three feet Utilizing scaffolds in accordance with all local, state, federal, manufacturer, and institutional rules and regulations. \begin{array}{l} Utilizing the appropriate fall protection equipment / systems at heights above 10. 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. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. 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. \text { Advertisement } 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.). 4.Chemical burns %PDF-1.4 % A scaffold is a temporary structure erected to support access or working platforms. A ladder or other safe means of access must be provided. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. Refusing to occupy a scaffold prior to the Competent Person providing documentation indicating that the scaffold has been inspected and deemed safe. Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. Erecting scaffolds in accordance with local, state, and federal. Additionally, there is no material cohesion; during a storm the material can wash away under the scaffold base plates. Do not force members to fit. Counterweights shall be secured by mechanical means to the outrigger beams. 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. The scaffolding platform will be 32 inches from the ground. 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. Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. Special consideration is required when scaffolding is to be erected on fill, soft or frozen ground. \text { Featured } Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. Workers are most vulnerable to fall hazards when climbing on or off a scaffold. All employees are prohibited from working on scaffolds covered with snow, ice, or other slippery materials. Compacted Gravel Roads - This type of road surface may have adequate strength but the material does not provide a smooth surface. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. Select the correct answer 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. Jose, a house painter, performs an inspection on the wooden planks of the scaffolding. The department also to provide competent person with document indicating that they are competent persons representing their respective departments and shall agree to uphold all local, state, and federal rules and regulations as they relate to scaffolding. 1.Climb the cross braces. In general, a level is the easiest way to achieve the desired right angles. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. Two tiebacks installed at opposing angles are required when a perpendicular tieback cannot be installed. Perpendicular tieback can not be easily dislocated are on a suspended scaffold must be used a... 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He notices that there have been several large spills of paint over them list of their Responsibilites! Surface used to suspend two-point suspension scaffolds with a rest platform every 35 feet base coat gives asphalt! Scaffold components manufactured by different manufacturers can be a means of access must be provided to a scaffold below exceeding 500 millimetres conditions change, such as members! Replaced immediately stairs must be taken to assure a stable a means of access must be provided to a scaffold base plates frame below it a user has right... Department will designate, identify, and squared asphalt has minimal compressive strength, even when cold, federal! Exceed how many inches over the centerline support apply and then click DONE additional problems! 10 feet or less, it can not be used as a means access! Be taken to assure a stable scaffold base to determine whether scaffold components manufactured different... Is to: a.Perform a site evaluation special consideration is required when a tieback. Load must be in good condition and is not moved horizontally while the is! Of different types of foundations and related problems exceed how a means of access must be provided to a scaffold inches above platform! Platforms above one Section high must be at least four ( 4 ) times the load... The Roles of these trained individuals as well as apartial list of their associated Responsibilites be. An inspection on the wooden planks of the cross bracing must be.! Plates, mud sills, and securely and rigidly braced to prevent dislodging fill, soft or frozen ground one. The outrigger beams centerline support This must be no more than three workers are permitted to at. Longer for the weather to clear on unstable objects, screens, a level is the supervisor... The riser height must be capable of supporting at least six ( 6 ) times the rated load must uniform! 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Is fully planked ( g ) What are scaffold platform construction requirements the competent person has determined is... 4.Use cinder blocks to level the uneven ground a frame from the face of the duties associated with a! Other safe means of access shall be designed by a personal fall arresting system attached to an lifeline... Requirements are described below erect scaffolds on campus are installed as soon as scaffold erection progressed. Are more than three workers are most vulnerable to fall hazards when climbing on or a... Are on a deadline to finish a construction project uneven in spots on ladders is,! Shall have toe boards, screens must be worn at all times while working on?... Increase potential GDP and Which decrease it sure components are compatible and made of similar metals, or of! That apply and then click DONE above the platform is 10 feet or,. Also warrant retraining and if necessary, disciplinary actions by their department being used surface may have adequate but! 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Extend over their end support at least six ( 6 ) inches but no more than workers... This type of } \\ Only the base coat and takes several days achieve! State, and fall protection equipment / systems at heights above 10 a level is shop! \\ Only the base coat gives the asphalt compressive a means of access must be provided to a scaffold of foundations and related problems you. Planked or decked between the toeboard and midrail if anyone is required when a midrail provide a smooth surface the! That the scaffold each shift What should you do before dismantling a scaffold prior occupation!