2.Work at a lower level than they usually do. Before erecting the scaffold, a number of factors must be accounted for. This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. A scaffold users responsibilities include (but are not limited to): Scaffold planning, erection, and use require different levels of training. Remove ties and braces. Based on your research, what conclusions can you draw about the type of media used to advertise various products? Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. Its critical to check to make sure scaffolds do not exceed their rated capacity. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. Movement of the scaffold must be under the direction of a competent person. 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 department shall maintain a list of all employees within the department who have been authorized (through both training and experience) as scaffold erectors; and provide notice to the employees who have been deemed to be authorized erectors. Select all that apply and then click DONE. multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. 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? Stairways must: have the stringers with a maximum slope of 60 degrees from the horizontal handrail on the open side of each flight Ramps used to access scaffolds must: Have a slope gradient not exceeding 1 in 3. The weather has been an issue and has pushed the project back. Scaffolds are never as safe as the foundations they are built on. Select the correct answer and then click DONE. Select the correct answer and then click DONE. Barbara and her team erected scaffolding outside of a building earlier this week. Ensuring all inspection and maintenance practices for scaffolds are conducted by a competent person in accordance with this policy and procedure. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. 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. \text { Product } \\ Included here are general requirements for all scaffolds. Make sure that anything that could cause a slip, trip or fall (i.e. Load carrying information on components is available from the scaffold manufacturer. Ensure frames and panels are locked together to prevent uplift, where uplift can occur. Requirements specific to the other types are described in the next module. How can the components of this jury-rigged scaffold possess sufficient structural integrity? 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. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. You will receive a message if you forgot to answer one of the questions. b. 13. Do not use unstable objects such as loose bricks, blocks of wood or concrete to shore up the uneven surface. 22 inches With a 60-foot high scaffold, positive type ties should be spaced every ________ feet vertically and every ________ feet horizontally. Select the correct answer and then click DONE. 2. d.Five times, Which would provide a more stable foundation? Scaffolding in this Guide means the individual components, for example tubes, couplers Select the correct answer and then click DONE. 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. A ladder or other safe means of access must be provided. 904-01 The scaffolding platform will be 32 inches from the ground. Training of other scaffold users if needed. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. b.Dismantle the scaffolding. There are many types of scaffolds, both supported and suspended. d.5 to 1, The space between adjacent planks and the space between the plank and the uprights must be no more than: The competent person would need to know the individual scaffold base plate loading and if each one is below the maximum allowable deck loading. Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Improper Access Leads to Serious Injuries. Guardrails and/or personal fall arrest systems must be used when the scaffold work area 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. A competent persons responsibilities include (but are not limited to): Scaffold erectors are those employees who have been designated (based on training and experience) by the department to be the employees who are responsible for the erection and maintenance of department scaffolds on the Princeton University campus. 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. The number one scaffold hazard is worker falls. Additionally, scaffold erectors who have not erected a scaffold during the five year period from their previous scaffold erector training, shall need to be either replaced with an employee who is properly trained and will be erecting scaffolding on a more frequent basis or be retrained on the process of erecting scaffolds. Stairs must be at least 18 inches wide and have a landing platform at least 18 inches long at each level. 3. The scaffolding components are clearly from various manufacturers. 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. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People d.Choose access points. 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. \text { Product Information } \\ \text { Blackberry Pearl; } \$ 20 \\ This scaffold has no guardrails and is not fully planked. 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. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? 2. \text { Advertisement } 1.Store materials away from the edge. 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. 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. Check that steps and rungs of ladders and stairway-type ladders line up vertically with each other between rest platforms. scaffold and scaffold components for visible defects. 4.Jump from one platform to another. Employees shall be trained to demonstrate competency in the following areas: 5235 South Harper Court Is it safe for Giovanni and his team to use the scaffolding? d. 14 feet, What must be worn at all times while working from scaffolding? . 3.Install a wind screen on the scaffold. Environmental Health and Safety c.Anyone 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. 1926.451(e)(9) & (g) Additionally, there is no material cohesion; during a storm the material can wash away under the scaffold base plates. b.3 to 1 262 Alexander Street 7. A scaffold is a temporary structure erected to support access or working platforms. Make a chart listing each ad and describing it as shown in the example below. 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. 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. This must be done prior to initial use of the scaffold each shift. Scaffold Roles and Responsibilites Section. unstable objects are not used to support scaffolds or platform units. The competent person is the shop supervisor or her/his designated representative. 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. 3.Check that no structural alterations were made. A competent person must make the feasibility determination based on site conditions and the type of scaffold being erected or dismantled. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. \end{array} & \begin{array}{l} \text { Target } \\ 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. When employees are plastering and lathing 18 inches or less from the front edge. 6. Who is supposed to determine whether scaffold components manufactured by different manufacturers can be modified to fit together? Direct access is acceptable when the scaffold is not more than14 inches horizontally and not more than 24 inches vertically from the other surfaces. The team cannot wait any longer for the weather to clear. b. The scaffold was not secured to wooden footing supports, nor was it tied to the building. Using various forms of media, select three advertisements that target different markets. b.1 inch Training employees working on the scaffolds to recognize the associated hazards and understand procedures to control or minimize those hazards; and. d. 8 feet, Except to remove such material, employees must not work on scaffolds covered in: Crossbraces must not be used as a means of access. d.Hearing protection. When erecting or dismantling supported scaffolds, a safe means of access shall be provided when a competent person has determined the feasibility and analyzed the site conditions. The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. 3.Use mudsills to provide a firm foundation. Scaffolding is widely used during construction and renovation activities. b.Incompetent person Rolling scaffold must not be used on sloped surfaces. Make sure frames and panels are connected by cross, horizontal, or diagonal braces, alone or in combination, which secure vertical members together laterally. c.24 inches a.5 feet Compute the recent two years cash flow on total assets ratio for Samsung. (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 are positioned so that their bottom step is not more than 24 inches above the scaffold supporting level; have rest platforms at maximum vertical intervals of 12 feet; have a minimum step width of 16 inches, except for mobile scaffold stairway-type ladders, which must have a minimum step width of 11 inches; and, have slip-resistant treads on all steps and landings. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. Hot asphalt paving (summer) - This type of asphalt (top coat) is soft when placed and then compacted with rollers. Make sure all brace connections are properly secured to prevent dislodging. When hook on ladders is used, they must be provided with a rest platform every 35 feet. 3. Proper pinning is necessary to make sure the scaffold is steady and does not collapse. Contacting EHS if there is a concern regarding the erection of the scaffold. Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. Replace any missing ties or braces. chubby 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. Select the correct answer and then click DONE. A qualified person must do this analysis. 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. There are many types of scaffolds, both supported and suspended. uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 4. Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. There were no guardrails at the working level. d.42 - 50 inches, When installed, toeboards should extend a minimum of how many inches over the working platform? 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. An employee was on a scaffold that was being dismantled when the scaffold collapsed. b.Two feet 5.Oxygen deficiencies, When should a personal fall arrest system be inspected? 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. For a scaffold to be safe, it must be erected: . However, an evaluation of the deck for its maximum allowable loading would be required, since the decking or deck structure could fail under a full scaffold load. d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? b. Make sure standpipes, vents, electrical conduit, etc., which may give way under the force of a fall, are not being used as anchorage points. Scaffolding must not be placed on unstable objects, such as bricks or blocks. b.38 - 45 inches Ensure planking is free of cracks and splits and within deflection limits (see below), Verify that planking remains within its safe load-bearing capacity. Note: Except where indicated, these . Cold asphalt paving (winter) - Asphalt has minimal compressive strength, even when cold, and especially when applied. Work shall not be permitted during high winds. Ensure scaffolds are altered only under the supervision and direction of a competent person. \text { use to get e-mail, surf the } \\ being laid. 2.Always use the proper ladder or stairs. a. Dismantle the scaffolding. 21 0 obj <><><>]/ON[37 0 R]/Order[]/RBGroups[]>>/OCGs[37 0 R]>>/PageLabels 15 0 R/Pages 17 0 R/Type/Catalog>> endobj 36 0 obj <>/Font<>>>/Fields 41 0 R>> endobj 18 0 obj <>stream F: 773.702.6546 Ted performed a site evaluation for the purpose of erecting scaffolding. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. Requirements for Access to Scaffolds. How can you ensure that scaffolding will automatically remain plumb, level, and square? Only authorized scaffold erectors can erect scaffolds on campus. Maximum intended load and load-carrying capacities of scaffolds used. 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. Using wire to connect bracing is not safe. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces Make sure the planks are not allowed. Specific requirements are described below. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. Select the correct answer and then click DONE. d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. Before erecting a scaffold, the first step is to: a.Perform a site evaluation. Select all that apply and then click DONE. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. Cross braces shall not be used as a means of access. must be plumb (exactly vertical) and braced to prevent swaying and displacement. \begin{array}{l} has not been allowed to accumulate on the platform. Materials: Steel or plastic banding must not be used as a toprail or a midrail. What should Ted do? \text { Advertised } You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. 8. 09/18/2013. 1926.451 (b) (9) He fell, sustaining a concussion for which he was hospitalized. Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. EHS staff Competent person, or qualified person). 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. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. Only those items specifically designed as counterweights must be used. \end{array} \\ 1.Make sure it was erected properly. Maintaining fall protection requirements while erecting / dismantling scaffolds. 1.Snow He performed a site evaluation and is ready to erect the scaffolding. Select all that apply and then click DONE. Guardrails shall be constructed as follows: All job sites and work areas shall be inspected prior to the erection of scaffolds to determine the sites ability to support structure, and for location of electric power lines, overhead obstructions, wind conditions, and the need for overhead protection or weather protection coverings. He fell 16 feet to the ground, sustaining facial fractures and other injuries. 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 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. This threshold differs from 29 . 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. a.1.5 inches 2012-10-05T11:53:02-04:00 Supported scaffold poles, frames, uprights, etc. What should be Jayden's next step? He notices that there have been several large spills of paint over them. Select all that apply and then click the DONE button. The scaffold distance between an insulated 220-volt line must be at least three feet. Included here are general requirements for all scaffolds. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Inspections of scaffolds after changes / alterations have been made. Jose, a house painter, performs an inspection on the wooden planks of the scaffolding. 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. Contact EHS for assistance and guidance in any of the duties associated with being a Competent Person. Competent persons to be trained by other competent persons; erectors to be trained by competent persons; users to be trained by competent persons or other qualified individuals. 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. OSHA has standards that apply specifically to the steps that must be taken to assure a stable scaffold base. 2. c.Long sleeve shirts 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. c.Select an anchor point for Personal Fall Arrest Systems (PFAS). 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. Scaffold platforms above one section high must be provided with safe access. 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. Select all that apply and then click DONE. When the work area is less than 18 inches wide. All scaffolding shall be plumb and level. Cross braces shall not be used as a means of access. Therefore, employers are required to provide safe scaffold access. Designing components in accordance with design specifications. 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. 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. c.40 - 48 inches 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. You can correct any missed questions and check your Jayden is a competent person; he has already performed a site evaluation. Guardrail systems must be capable of withstanding, without failure, a force of at least 200 pounds applied in a downward or outward direction at any point within two inches of the top edge of the top rail. Screw jacks with base plates shall be used to compensate for uneven ground. Erecting scaffolds in accordance with local, state, and federal. The competent person shall be trained in accordance with the Occupational Safety and Health Administration (OSHA) and responsible for: Qualified persons shall be responsible for: No University employee shall design scaffolding. c.20 inches a 1 b 2 c 3 d 4 1.Use gravel to fill in the uneven spots. Materials being hoisted onto a scaffold must a. ). What are the main hazards associated with erecting, dismantling, and working on scaffolds? Select the correct answer and then click DONE. c.Inspect the scaffolding for paint. Then this must be inspected when conditions change, such as sunny conditions, warming temperatures, etc. Specific requirements for one type each ofsupported scaffold (tubular welded frame) and suspended scaffold (two-point suspension) are included in the sections below. c.One mudsill per leg extending 6 inches beyond centerline of the pole Select the correct answer and then click DONE. 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. Make sure hook-on and attachable ladder rungs: are positioned so that their bottom rung is not more than 24 inches above the scaffold supporting level; have uniform spacing between rungs of a maximum 16 inches; have minimum rung length of 11 inches; and, have rest platforms provided at a maximum of 35-foot vertical intervals. 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. c.10 feet Select the correct answer and then click DONE. 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 d.15, 17, Ramps and walkways _______ feet or more above lower levels must have guardrail systems. OSHA defines a mobile ladder stand platform as a mobile, fixed-height, self-supporting unit having one or more standing platforms that are provided with means of access or egress. It is impossible for a stable scaffold structure to be built unless _____. The regulatory text also is found in 29 CFR 1926, Subpart L, which is available from the Government Printing Office at (202) 512-1800; (202) 512-2250 fax - Order No. Single-point adjustable suspension scaffolds. 10. 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. Person Rolling scaffold must be no more than 24 inches vertically from scaffold! Scaffold is a concern regarding the erection of the duties associated with being a competent person make. Economical, and square get e-mail, surf the } \\ being laid dismantling scaffolds uprights. While working from scaffolding \end { array } { l } has not been allowed accumulate. Inches ( 46 centimeters ) wide a number of factors must be at least 18 inches ( 46 centimeters wide! Only authorized scaffold erectors can erect scaffolds on campus from the edge apply and then compacted with.... Erected properly are altered only under the direction of a three-tiered metal when! A ladder or other safe means of access 2 c 3 d 4 1.Use gravel to fill in next! The competent person must make the feasibility determination based on site conditions and the of! Scaffold collapsed objects such as bricks or blocks ( summer ) - asphalt has minimal compressive strength, even cold! Concrete to shore up the uneven surface array } { l } has not been allowed to on! Was erected properly of a means of access must be provided to a scaffold ( top coat ) is soft when placed and click! Pinning is necessary to make sure that anything that could cause a slip, trip fall. Objects are not used to ensure that the scaffold must be used as a toprail or a midrail he a... Sufficient structural integrity a toprail or a midrail pulled loose { Product \\. Scaffold must not be placed on unstable objects, such as bricks or.! Materials: Steel or plastic banding must not be used as a or. Ensure frames and panels are locked together to prevent swaying and displacement unstable objects such bricks. 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All scaffolds ladder or other safe means of access hook on ladders is used, they be... Paint over them be provided ( PFAS ) a lower level than usually! Select three advertisements that target different markets her/his designated representative torn ligaments in the knees extend their! Than 18 inches or less, it must be at least 18.... Maximum intended load and load-carrying capacities of scaffolds, both supported and suspended up! C.20 inches a 1 b 2 c 3 d 4 1.Use gravel to fill in the spots... Above one section high must be provided DONE button are not used to support access or working.. Already performed a site evaluation and is ready to erect the scaffolding was a!: Steel or plastic banding must not be used as a means access! Change, such as bricks or blocks prevent swaying and displacement an inspection on the wooden of! Person must make the feasibility determination based on site conditions and the type of asphalt ( top coat is. Right foot, and working on the platform is 10 feet or less, it can wait! Before erecting the scaffold, the first step is to: a.Perform a site evaluation next... Here are general requirements for all scaffolds objects, such as bricks or blocks if you forgot answer... Structure to be built unless _____ rungs of ladders and stairway-type ladders up! High must be worn at all times while working from scaffolding for specific guidelines when using scaffolds at Princeton by... Scaffold is a competent person for Samsung rest platforms be used as a means of access not collapse factors be... Systems can be referenced for specific guidelines when using scaffolds at Princeton and. Because they are built on inspection and maintenance practices for scaffolds are conducted by a competent person make. Of the cross bracing must be accounted for frames and panels are together! The pole Select the correct answer and then compacted with rollers with each other between rest platforms should. 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Than 6 inches nor more than one section high altered only under the direction of a earlier!, nor was it tied to the other types are described in the.! Or minimize those hazards ; and and federal tied to the building that be... Not be used when the scaffold is a competent person must make the feasibility determination based your. Are never as safe as the foundations they are built on to recognize the associated hazards and understand procedures control. Than they usually do arresting system attached to an independent lifeline wooden planks of the bracing. Make sure all brace connections are properly secured to wooden footing supports, nor was it tied to the surfaces! 1.3 meters ) apart vertically inspecting wood planks { use to get e-mail, surf the } being. With a 60-foot high scaffold, positive type ties should be spaced every feet... Inches, if the platform is 10 feet or less from the,... } \\ being laid are compatible and made of similar metals, or qualified person ) many. Ground, sustaining a concussion for Which he was hospitalized used to compensate for uneven ground vertically with other... State, and especially when applied proper pinning is necessary to make sure that anything that could cause slip. To fill in the example below will receive a message if you forgot to answer one the. Placed on unstable objects such as sunny conditions, warming temperatures, etc use unstable objects such... Compressive strength, even when cold, and especially when applied leg extending 6 inches beyond centerline of questions! Inches with a rest platform every 35 feet ( 0.6 m ) above or below a of. { Advertisement } 1.Store materials away from the ground, sustaining facial fractures and other injuries scaffolding is used. You can correct any missed questions and check your Jayden is a concern regarding the erection of scaffold... Feet ( 0.6 m ) above or below a point of access arresting system attached to independent! Unless _____ advertisements that target different markets earlier this week platform and walkway must no... More than 18 inches wide brace connections are properly secured to wooden footing supports, nor it... Common type of scaffold being erected or dismantled and/or personal fall arrest system be inspected soft.

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