Suspended scaffold - like the supported scaffold, this type also usually consists of one or more platforms but is suspended by overhead support and ropes. Stair treads must be of slip-resistant design. When inspecting the surface conditions where the scaffolding will be erected, ask yourself: All wood planks used on scaffolds should be rated what grade? 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. For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. Select the correct answer and then click DONE. Barbara and her team erected scaffolding outside of a building earlier this week. All scaffolding shall be plumb and level. Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. 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. Click on the button to see requirements for ladders on stair tower systems. This threshold differs from 29 . Additionally a user has the right to refuse to occupy the scaffold should they contest the competent persons findings. 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. tools, scrap material, chemicals, snow, ice, etc.) being laid. 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. When the other end of the 2x4 slipped off the bucket, the employee did not let go of his end, and was pulled off the deck. c.Three feet 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. The footing of scaffolding must be sound and rigid, capable of supporting the weight. Work shall not be permitted during high winds. b. a.18 inches 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. Select the correct answer and then click DONE. A single tieback must be installed perpendicular to the face of the building or structure. 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. 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. c.10 Hot asphalt paving (summer) - This type of asphalt (top coat) is soft when placed and then compacted with rollers. 904-01 footings are capable of supporting the loaded scaffold without settling or displacement. d. 14 feet, What must be worn at all times while working from scaffolding? c.Re-evaluate the site, as the ground conditions have changed due to weather. 8 Read the material in each section to find the correct answer to each quiz question. b. 4.Jump from one platform to another. 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 surfaces. When employees are plastering and lathing 18 inches or less from the front edge. d.24 inches, On high scaffolds, all planks should be secured by being tied down with: This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. 1.Snow Please answer all of the questions before checking your quiz answers. Scaffolds and components must be able to support at least four times the intended load. The end points at each upright shall be no more than 48 inches. Stationary scaffolds over 125 feet in height and rolling scaffolds over 60 feet in height shall be designed by a professional engineer. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. 3. 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. b. The electronic address to view or download a copy as found on OSHA's Website is www.osha.gov. How can the components of this jury-rigged scaffold possess sufficient structural integrity? 9. A ladder or other safe means of access must be provided. Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. Design and preplanning of the scaffold including weight limitations, scaffold type, fall protection, tie-offs, supports, etc. The footing of scaffolding must be sound and rigid, capable of supporting the weight. He notices that there have been several large spills of paint over them. Giovanni arrives at a jobsite as part of a team contracted to repair ductwork. Select all that apply and then click DONE. 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. Select the correct answer and then click DONE. What are the main hazards associated with erecting, dismantling, and working on scaffolds? ). a. The use of repaired wire rope is prohibited. Make a chart listing each ad and describing it as shown in the example below. When the work area is less than 18 inches wide. Included here are general requirements for all scaffolds. 4.Wear face masks. Cross braces shall not be used as a means of access. Ensuring all inspection and maintenance practices for scaffolds are conducted by a competent person in accordance with this policy and procedure. When horizontal lifelines are used, make sure they are being secured to two or more structural members of the scaffold. d.15, 17, Ramps and walkways _______ feet or more above lower levels must have guardrail systems. Fall 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. Laura and her team are on a deadline to finish a construction project. 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. 2.Always use the proper ladder or stairs. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 meters) above or below a point of access. 3.Falling objects Inspections of scaffolds after changes / alterations have been made. 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. Crossbraces must 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. Select the correct answer and then click DONE. Training employees working on the scaffolds to recognize the associated hazards and understand procedures to control or minimize those hazards; and. 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. 2. A competent person must make the feasibility determination based on site conditions and the type of scaffold being erected or dismantled. To avoid injury while moving from one platform to another, you should: Planks are stamped for scaffold approved loading and usage on one end. 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. Select the correct answer and then click DONE. The scaffolding will extend twenty feet into the air. a 1 b 2 c 3 d 4 You must cordon off the area prior to erecting or dismantling scaffolds above: Select the items below that must be considered when using scaffolding. 4.Use tow lines to raise or lower tools and equipment. chubby 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 The scaffold was not secured to wooden footing supports, nor was it tied to the building. 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. 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