\text { Students-back } \\ Note: A level should be used during assembly to make sure new structural components remain in line. Select the correct answer and then click DONE. Direct . Select the correct answer and then click DONE. \begin{array}{l} To avoid injury while moving from one platform to another, you should: Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. 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. Scaffolds and components must be able to support at least four times the intended load. He fell 16 feet to the ground, sustaining facial fractures and other injuries. Training of other competent persons, scaffold erectors, and users. 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. Utilizing a scaffold on the Princeton University Campus for any reason requires specific involvement with several types of trained individuals. \end{array} \\ d.Choose access points. 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. A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? a.One mudsill per leg The footing of scaffolding must be sound and rigid, capable of supporting the weight. Outriggers must be used on narrow frame type scaffolds (i.e. 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. In its simplest form, a scaffold is any temporary elevated or suspended work surface used to support workers and/or materials. Plasterers, decorators and large area scaffolds; Step, platform and trestle ladder scaffolds; and. Chicago, Illinois 60615, T: 773.702.9999 must be plumb (exactly vertical) and braced to prevent swaying and displacement. 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. chubby The end points at each upright shall be no more than 48 inches. b.Three times What is the most common type of supported scaffold? The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. 5. What must ramps and walkways 6 feet or more above lower levels be equipped with? d.24 inches, On high scaffolds, all planks should be secured by being tied down with: Proper pinning is necessary to make sure the scaffold is steady and does not collapse. 4.Use tow lines to raise or lower tools and equipment. The most frequent fall-from-elevation accident is a fall off ladders. 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.). 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. scaffold and scaffold components for visible defects. 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. 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 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. Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. 4.Use cinder blocks to level the uneven ground. \text { use to get e-mail, surf the } \\ The following sections can be referenced for specific guidelines when using scaffolds at Princeton. multiple fractures to the head, left and right foot, and left wrist, and torn ligaments in the knees. uuid:1f2371a8-90ab-42b0-a1cd-a86bdbf5cef5 The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. b. Make sure portable, hook-on, and attachable ladders are positioned so as not to tip the scaffold. Make sure no gaps greater than 1 inch are permitted between adjacent planks or deck units, or between the platform and the uprights. What should Ted do? . c.13, 15 %PDF-1.4 % The number one scaffold hazard is worker falls. 22 inches Training of other scaffold users if needed. Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, Specific requirements are described below. Counterweights used for suspended scaffolds shall be made of materials that cannot be easily dislocated. 1926.451 (b) (9) What should you do before dismantling a scaffold? 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 Inspecting all scaffold components prior to assembly to insure that components used are of similar material and in good repair before becoming a part of the completed scaffold. A ladder or other safe means of access must be provided. Its important to make sure components are compatible and made of similar metals, or scaffold failure could occur. Sand, gravel, masonry units, rolls of roofing felt, and other such materials shall not be used as counterweights. d. 14 feet, What must be worn at all times while working from scaffolding? a. b.One continuous mudsill under both legs c.30 feet They must be in good worker order or tagged as defective and taken out of service. 4.A bungee cord, Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. Select all that apply and then click DONE. In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. Employers must ensure that: 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. 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. After answering all the questions, click on the "Check Quiz Answers" button to grade your quiz and see your score. When employees are plastering and lathing 18 inches or less from the front edge. \text { Advertised } Cross braces shall not be used as a means of access. Special consideration is required when scaffolding is to be erected on fill, soft or frozen ground. TypeofAdvertisementTelevisionProductAdvertisedBlackberryTargetMarketStudents-backtoschoolProductInformationFeaturedBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections. 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. You will receive a message if you forgot to answer one of the questions. What are supported scaffold foundations set on to ensure stability? Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. Do not use unstable objects such as loose bricks, blocks of wood or concrete to shore up the uneven surface. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. 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. \end{array} & \begin{array}{l} 1.Wear personal fall arrest systems (PFAS). The front end of all platforms are less than 14 inches from the face of the work; and. 2008-02-28T15:30:48-05:00 Cross braces shall not be used as a means of access. Make sure employees do not use cross-braces as a means of access. Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. Providing a scaffold to the user that is free from recognizable and preventable hazards (i.e. Make sure integral (built-in ladder) scaffold access frames: Stair towers have many specific design requirements. Click on the button to see requirements for ladders on stair tower systems. A light weight supported scaffold could be used on wood decking when the competent person has determined the structure would support the scaffold and its entire load. endstream endobj 15 0 obj <> endobj 17 0 obj <> endobj 22 0 obj <>/Font<>/ProcSet[/PDF/Text/ImageB]/XObject<>>>/Rotate 0/Type/Page>> endobj 1 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 5 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 8 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 11 0 obj <>/Font<>/ProcSet[/PDF/Text]/XObject<>>>/Rotate 0/Type/Page>> endobj 54 0 obj <>stream A scaffold is a temporary structure erected to support access or working platforms. 2.A plank clip When the work area is less than 18 inches wide. 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