He suffered Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. has not been allowed to accumulate on the platform. b.6 Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Select the correct answer and then click DONE. a.18 inches When the scaffold work area is less than 18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must be used. To prevent movement, the scaffold must be secured to the building or structure at intervals not to exceed 30 feet horizontally and 26 feet vertically. All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. Select the correct answer and then click DONE. 2012-10-05T11:53:02-04:00 Scaffolds are never as safe as the foundations they are built on. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. 6. Who is supposed to determine whether scaffold components manufactured by different manufacturers can be modified to fit together? \end{array} & \begin{array}{l} 11. Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. Princeton, NJ 08540ehs@princeton.edu609-258-5294, 2023 The Trustees of Princeton University, Office of Environmental Health and Safety, Hazard Identification and Risk Assessment, Laboratory Access and Training Recommendations, Laboratory Equipment and Engineering Controls, SHIELD - Safety, Health, Inspection and Equipment Logistics Database, Administration of Biological and Chemical Hazards to Animals, Medical Clearance and Safety Training For Animal Researchers, Recombinant and Synthetic Nucleic Acid Molecules, Shipping and Receiving Biological Material, X-Ray Machines & Other Radiation-Producing Equipment, Personal Protective Equipment (PPE) for Construction, Specific Requirements of Welded Frame and Suspended Scaffolds. A competent person must make the feasibility determination based on site conditions and the type of scaffold being erected or dismantled. Direct access is acceptable when the scaffold is not more than14 inches horizontally and not more than 24 inches vertically from the other surfaces. -Make sure it was erected properly -Check that no structural alterations were made -Replace any missing ties or braces Select all that apply and then click the DONE button. (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 b.18 inches Counterweights shall be secured by mechanical means to the outrigger beams. c.40 - 48 inches 1.Slips and falls This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Only those items specifically designed as counterweights must be used. 1926.451(e . Select the correct answer and then click DONE. Select the correct answer and then click DONE. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Requirements to prevent falls that apply only to these workers are addressed separately below. Fall Protection. b.1 inch 8 inches OA025.pdf 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: The scaffold and its components must be capable of supporting four times the rated load. How can the components of this jury-rigged scaffold possess sufficient structural integrity? Only the base coat gives the asphalt compressive strength.1. Single-point adjustable suspension scaffolds. 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. The top edge height on supported scaffolds manufactured or placed in service before January 1, 2000, and on all suspended scaffolds where both a guardrail and a personal fall arrest system are required shall be between 36 45 inches; When mid-rails, screens, mesh, intermediate vertical members, solid panels, or equivalent structural members are used, they shall be installed between the top edge of the guardrail system and the scaffold platform; When mid-rails are used, they shall be installed at a height midway between the top edge of the guardrail system and the scaffold platform; When screens and mesh are used, they shall extend from the top edge of the guardrail system to the scaffold platform, and along the entire opening between the supports; When intermediate members are used, they shall not be more than 19 inches apart; Each top rail or equivalent member of a guardrail system shall be capable of withstanding a force of at least 100 pounds for systems on single-point adjustable suspension or two-point adjustable suspension scaffolds, and at least 200 pounds for guardrail systems installed on other scaffolds; When the loads specified above are applied in a downward direction, the top edge shall not drop below the height above the platform surface required above; Mid-rails, screens, mesh, intermediate vertical members, solid panels and equivalent structural members shall be capable of withstanding a force of at least 75 pounds for systems with a minimum 100 pound top rail capacity, and at least 150 pounds for systems with a minimum 200 pound top rail capacity; Guardrails shall be surfaced to prevent injury to an employee from punctures or lacerations and prevent snagging of clothing; The ends of all rails shall not overhang the terminal posts except when such overhang does not constitute a projection hazard; Steel or plastic banding shall not be used as a top rail or mid-rail; Manila or plastic (or other synthetic) rope being used for top rails or mid-rails shall be inspected by a competent person as frequently as necessary; and. Training of other competent persons, scaffold erectors, and users. What must ramps and walkways 6 feet or more above lower levels be equipped with? Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. 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. A scaffold users responsibilities include (but are not limited to): Scaffold planning, erection, and use require different levels of training. 6 inches \text { Target } \\ Scaffolding is widely used during construction and renovation activities. 1.Use gravel to fill in the uneven spots. To control the risk of a scaffold falling or collapsing, employers must assure that scaffolds are built within OSHA standards relating to strength and structural integrity. Compacted Soils & Then Frozen - Compacted soils, as with all soils, swell and heave due to moisture content or water contained within the soil. Scaffold Roles and Responsibilites Section. 10. 12. In such cases, verify that the platforms are as wide as feasible, and fall protection is provided. What is the most common type of supported scaffold? Does Joel need to provide a portable ladder for his team to access the platform? All scaffolding shall be plumb and level. 1926.451(e)(9) & (g) 1.Snow Make sure all brace connections are properly secured to prevent dislodging. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. b. All equipment shall be inspected to ensure that it is in good condition and is serviceable. Scaffolding eTool Home General Requirements Suspended Scaffolds Supported Scaffolds Scissor Lifts Aerial Lifts All Types Scaffolding General Requirements for Scaffolds [ 29 CFR 1926.451] Capacity What are the capacity requirements for all scaffolds? TypeofAdvertisementTelevisionProductAdvertisedBlackberryTargetMarketStudents-backtoschoolProductInformationFeaturedBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections. b.Use the scaffolding as is. Select all that apply and then click DONE. a. Dismantle the scaffolding. S/N 869-034-00107-6; cost $30 (foreign $37.50). Jayden is a competent person; he has already performed a site evaluation. Two feet What should you do before dismantling a scaffold? 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. 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. 3.Falling objects Select the correct answer and then click DONE. 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. Select the correct answer 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. Erectors also must abide by all manufacturer recommendations and be capable of erecting scaffolds under the guidance of a competent person. 2012-10-05T11:53:02-04:00 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.
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\79bj!1}dpB~9V&co7Sj. 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. Environmental Health and Safety 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. 2.Work at a lower level than they usually do. 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. Select the correct answer and then click DONE. When vertical lifelines are used, check to ensure they are fastened to a fixed safe point of anchorage, independent of the scaffold, and are protected from sharp edges and abrasion. Note: A level should be used during assembly to make sure new structural components remain in line. 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. The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. The most frequent fall-from-elevation accident is a fall off ladders. Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. d. Four feet. Two tiebacks installed at opposing angles are required when a perpendicular tieback cannot be installed. 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