Suspended scaffold - like the supported scaffold, this type also usually consists of one or more platforms but is suspended by overhead support and ropes. 1.Snow a.Begin to erect the scaffolding. Separation of frames can occur in high winds (uplift), or when workers climb endframes, overload the platform, Cross braces shall not be used as a means of access. 2. Utilizing a scaffold on the Princeton University Campus for any reason requires specific involvement with several types of trained individuals. Determine if fall protection is feasible during the erecting process. Key comparative information for Samsung, Apple, and Google follows. a. What are supported scaffold foundations set on to ensure stability? Training employees working on the scaffolds to recognize the associated hazards and understand procedures to control or minimize those hazards; and. Using wire to connect bracing is not safe. c.10 A ladder or other safe means of access must be provided. Select the correct answer and then click DONE. 3.Maintain three points of contact while on a ladder. In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? Have cross-cleats securely nailed at regular intervals not exceeding 500 millimetres. . By itself it is not normally a useable foundation material. Select the correct answer and then click DONE. 5.Use taglines if a load could swing and hit the scaffold. 1.A number nine wire The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. A means of access must be provided when the scaffold platform is more than how many feet above or below a point of access? unstable objects are not used to support scaffolds or platform units. b.Incompetent person \text { to school } 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. Do not force members to fit. Each worker on a suspended scaffold must be protected by a personal fall arresting system attached to an independent lifeline. a.2 feet Manila or synthetic rope used for top rails must be inspected to ensure that the rope meets the strength requirement. \text { Product Information } \\ This scaffold has no guardrails and is not fully planked. c.Four times Select the correct answer and then click DONE. a.18 inches \text { Students-back } \\ What are integral (built-in) access frames specifically designed for? Scaffolding is widely used during construction and renovation activities. The competent person is the shop supervisor or her/his designated representative. 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? 4 feet 3.Install a wind screen on the scaffold. has not been allowed to accumulate on the platform. HV[o6~8%9N(Km -QTI*CJe'{tC^nAieAi?Ypqvi;y5P( s!u d.Five times, Which would provide a more stable foundation? Scaffolding must not be placed on unstable objects, such as bricks or blocks. 1.Wear personal fall arrest systems (PFAS). Select all that apply and then click DONE. Two feet What should you do before dismantling a scaffold? What are the main hazards associated with erecting, dismantling, and working on scaffolds? Poor foundation: Scaffold end frames, which have no base plate, are erected on top of scrap wood and unstable cement blocks. 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? Manila or synthetic rope used for midrails must be inspected to ensure that the rope meets the strength requirement. 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. Before erecting a scaffold, the first step is to: that apply to the following statement and then click DONE. 2. 4.Use cinder blocks to level the uneven ground. 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. Wood decking - This may lend itself for use as a foundation. Select all that apply and then click DONE. Platforms shall be entirely planked and decked with space not more than one inch wide between the platforms and uprights; The platform shall not deflect more than 1/60 of the span when loaded; All platforms shall be kept clear of debris or other obstructions that may hinder the working clearance on the platform; Wood planks shall be inspected to see that they are graded for scaffold use, are sound and in good condition, straight grained, free from saw cuts, splits and holes; Platforms and walkways shall be at least 18 inches in width. Ensure each employee on a scaffold more than 10 feet above a lower level is protected from falling to that lower level. 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. Select the correct answer and then click DONE. 1926.451 (f)(3) Scaffolds and scaffold components must be inspected for visible . Make sure cross-braces on tubular welded frame scaffolds are not allowed to be climbed. b.2 inches The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. Included here are general requirements for all scaffolds. 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. Select all that apply and then click the DONE button. b.Three times The use of shore scaffolds and lean-to-scaffolds is strictly prohibited. For the current year, is Samsungs cash flow on total assets ratio better or worse than (a) Apples and a that apply to the following statement 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. Supported scaffolds consist of one or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid support. Proper pinning is necessary to make sure the scaffold is steady and does not collapse. answers again. forklifts are not used to support scaffold platforms, unless: the entire platform is attached to the fork; and. 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 described in their applicable sections. Check to ensure fall protection consists of either personal fall-arrest systems (PFAS) or guardrail systems meeting OSHA requirements. 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). 7. Guardrails shall be installed along the open sides and ends before releasing the scaffold for use by the employees, other than erection or dismantling crews. 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. 4.Jump from one platform to another. 1926.451(e)(9) & (g) Is the change in Samsungs cash flow on total assets ratio favorable or unfavorable? He suffered 5. 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. scaffold and scaffold components for visible defects. The scaffold was not secured to wooden footing supports, nor was it tied to the building. d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People b.Dismantle the scaffolding. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. 8. Please answer all of the questions before checking your quiz answers. 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. 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. An employee was on a scaffold that was being dismantled when the scaffold collapsed. \text { Market } Additional non-compliant actions associated with scaffolds will also warrant retraining and if necessary, disciplinary actions by their department. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). or strike the scaffold with tools, materials, etc. 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. 8 To avoid injury while moving from one platform to another, you should: Erecting scaffolds in accordance with local, state, and federal. 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. Horizontal members are erected in a manner that creates a usable ladder and provides good hand hold and foot space. c.10 feet How can the components of this jury-rigged scaffold possess sufficient structural integrity? Any damaged or weakened component of a scaffold must be repaired or replaced immediately. Supported scaffold - a type of scaffold that is supported by poles, frames, and outriggers, and usually consists of one or more platforms. 1. Included here are general requirements for all scaffolds. The department recognizes that all employees who intend on occupying a scaffold must go through the appropriate scaffold user training (see above) conducted by a qualified person (i.e. a. Dismantle the scaffolding. Scaffolding in this Guide means the individual components, for example tubes, couplers c.Three feet At a minimum, daily inspection and documentation of the condition of the scaffold and its ability to be occupied safely. Contacting EHS if there is a concern regarding the erection of the scaffold. 904-01 This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. a 1 b 2 c 3 d 4 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. Select the correct answer and then click DONE. Any damaged or weakened component of a scaffold must be repaired or replaced immediately. c.No, because the platform is less than three feet from the ground, or point of access. The spaces between platforms cannot exceed one inch. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. 2.Rubber Cross braces shall not be used as a means of access. Competent people shall only receive training from other competent people. b. 3.Use mudsills to provide a firm foundation. d.Add additional poles to support the scaffolding. b.Once a week Select the correct answer and then click DONE. 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. Note: A level should be used during assembly to make sure new structural components remain in line. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. 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. Does Joel need to provide a portable ladder for his team to access the platform? Scaffold planks shall extend over their end support at least six (6) inches but no more than twelve (12) inches. Maintaining fall protection requirements while erecting / dismantling scaffolds. b.18 inches A single tieback must be installed perpendicular to the face of the building or structure. 8 inches 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. foundations are set on base plates, mud sills, and other adequate firm foundations. c.30 feet a. 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.). Utilizing scaffolds in accordance with all local, state, federal, manufacturer, and institutional rules and regulations. The most frequent fall-from-elevation accident is a fall off ladders. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. Select the correct answer and then click DONE. application/pdf Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. 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. Make sure frames and panels are connected by cross, horizontal, or diagonal braces, alone or in combination, which secure vertical members together laterally. Counterweights shall be secured by mechanical means to the outrigger beams. Training of other scaffold users if needed. \text { discount; pink or silver; } \\ 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. 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