Select the correct answer and then click DONE. Select the correct answer and then click DONE. There are many types of scaffolds, both supported and suspended. a.Two times 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. 4. Do not use unstable objects such as loose bricks, blocks of wood or concrete to shore up the uneven surface. Improper Access Leads to Serious Injuries. 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. . Ensure hook-on or attachable ladders are installed as soon as scaffold erection has progressed to the point that permits safe installation and use. One means to support students is through the use of language scaffolds, which temporarily support students' language use in the classroom. He notices that there have been several large spills of paint over them. Then this must be inspected when conditions change, such as sunny conditions, warming temperatures, etc. The height of the scaffold in relation to the minimum base width, wind loads, the use of brackets or cantilevered platforms and imposed scaffold load determines the need for stability bracing. All scaffolding shall be plumb and level. Select all that apply and then click DONE. \text { discount; pink or silver; } \\ b.3 to 1 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. 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. Select the correct answer and then click DONE. a.Competent person c.10 inches c.Anyone Replace any missing ties or braces. 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 Any damaged or weakened component of a scaffold must be repaired or replaced immediately. Environmental Health and Safety The scaffolding platform will be 32 inches from the ground. d.Five times, Which would provide a more stable foundation? Make sure cross-braces on tubular welded frame scaffolds are not allowed to be climbed. It is generally applied as a thin coat over a base coat and takes several days to achieve its designed strength. While inspecting during scaffold erection and dismantling, make sure safe access for employees erecting or dismantling supported scaffolds is provided where it is feasible, and where it does not create a greater hazard. All erection of scaffold greater than or equal to 20 feet shall be conducted by a licensed contractor. 3.Maintain three points of contact while on a ladder. Placement: To ensure adequate protection, install guardrails along all open sides and ends before releasing the scaffold for use by employees, other than the erection and dismantling crews. 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. Planks are stamped for scaffold approved loading and usage on one end. Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Independent lifelines should be protected from abrasion and wear. Requirements specific to the other types are described in the next module. has not been allowed to accumulate on the platform. Key comparative information for Samsung, Apple, and Google follows. Ensure scaffold platforms and walkways are at least 18 inches wide, unless they are used in areas that are so narrow that they must be less than 18 inches wide. The spaces between platforms cannot exceed one inch. 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. 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? Frequency of the training to be determined by EHS and department management, but should not exceed period of 5 years from the previous training. Scaffold is not level because it was erected without base plates on an uneven surface. 5. The department will designate, identify, and provide training for competent persons within the department. Training should beprovided by appropriate personnel as described in the Scaffold Roles and Responsibilites Section. 1.Make sure it was erected properly. \text { Web, and get directions } No University employee shall design any scaffolding. 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. 13. 8. 2012-10-05T11:53:02-04:00 100% (1) Access must be provided when the scaffold platforms are more than 2 feet above or below a point of access. 2. Check to make sure frames are stacked, and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. 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. Baker, Perry, Bil-Jax) whenever frames are stacked more than one section high. Refusing to occupy a scaffold prior to the Competent Person providing documentation indicating that the scaffold has been inspected and deemed safe. c.Four times The weather has been an issue and has pushed the project back. 1.Climb the cross braces. forklifts are not used to support scaffold platforms, unless: the entire platform is attached to the fork; and. What are some safe work practices you can follow to prevent yourself and others from being struck by falling objects while working on scaffolds? Check to ensure safe points of anchorage, such as structural members of buildings, are being used. ). 3. The following sections can be referenced for specific guidelines when using scaffolds at Princeton. Direct . 5.Use taglines if a load could swing and hit the scaffold. 9. 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. 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. 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. Refresher training also to be provided whenever there is an indication that the individual in question, whether they be a competent person, erector, user, or qualified person, exhibits a lack of understanding of the manufacturer, local, state, and federal requirements associated with the inspection, erection, or use of scaffolds. d. Repair any defective scaffolding components. Personal fall arrest systems can be used on scaffolding when there are no guardrail systems. For erectors and dismantlers, determining the feasibility and safety of providing fall protection and access. Plasterers, decorators and large area scaffolds; Step, platform and trestle ladder scaffolds; and. 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. Make sure wooden planking is covered with opaque finishes, except that platform edges may be marked for identification. The scaffolding will extend twenty feet into the air. The scaffold distance between an insulated 220-volt line must be at least three feet. Cross braces shall not be used as a means of access. What is a joint underwriting association (JUA)? 3.Falling objects a.1.5 inches A self-supporting scaffold is one or more work platforms supported from below by outriggers, brackets, poles, legs, uprights, posts, frames or similar rigid supports. 12. Personal fall-arrest systems used on scaffolds should be attached by lanyard to a vertical lifeline, horizontal lifeline, or scaffold structural member. No more than three workers are permitted to work at one time on suspension scaffolds with a working load of 750 pounds. \begin{array}{l} 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. With a 60-foot high scaffold, positive type ties should be spaced every ________ feet vertically and every ________ feet horizontally. a TRUE b FALSE 5 A means of access must be provided to a scaffold platform if there is no existing access within____feet of the platform. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. Scaffold components manufactured by different manufacturers shall not be intermixed unless the components fit together without force and the scaffolds structural integrity is maintained. d.Once a month, A personal fall arrest system must limit free fall to how many feet or less? The platform gaps are too wide. Wood planks used for platforms on scaffolding shall be specifically graded for scaffold use by an approved grading agency. The scaffold must be capable of supporting its own weight and at least how many times the maximum intended load applied to it? 4.Use tow lines to raise or lower tools and equipment. All planking or platforms must be overlapped a minimum of twelve (12) inches and secured from movement. 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. It is impossible for a stable scaffold structure to be built unless _____. c.Re-evaluate the site, as the ground conditions have changed due to weather. d.Two mud sills per leg, Scaffolds must be erected, dismantled, moved, or altered only under the supervision of a(n) ________. Fall Protection. Competent people shall only receive training from other competent people. 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. 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. The number one scaffold hazard is worker falls. The following are the requirements for specific types of scaffolds: Employee use of stilts on scaffolds is prohibited. You must cordon off the area prior to erecting or dismantling scaffolds above: 1.People Fabricated frame scaffolds are the most common type of scaffold because they are versatile, economical, and easy to use. Is the change in Samsungs cash flow on total assets ratio favorable or unfavorable? Select all that apply and then click DONE. Notifying the competent person of any safety concerns associated with the erection, conditions, use, and / or maintenance of the scaffold. unstable objects are not used to support scaffolds or platform units. 6 inches TypeofAdvertisementProductAdvertisedTargetMarketProductInformationFeaturedTelevisionBlackberryStudents-backtoschoolBlackberryPearl;$20discount;pinkorsilver;usetogete-mail,surftheWeb,andgetdirections\begin{array}{llll} Only those items specifically designed as counterweights must be used. Materials being hoisted onto a scaffold must b.Three times When are workers on scaffolding most vulnerable to fall hazards? Both A & B (Hooks & Safety latches) Hoists shall be: All of the above Daily inspections need to include: Checking of the wire rope for damage or "caging" Hoists shall be inspected: Daily, prior to use Do not perform maintenance on a conveyor until: All hazardous energies are disconnected and blocked 4.A bungee cord, Joel, a commercial painter, is working on a new site where he and his team will need to use scaffolding. When the work area is less than 18 inches wide. b. 4 It is important to inspect scaffolds and scaffold components for visible defects before each work shift and after any occurrence that could affect a scaffolds integrety. After clicking the button, the questions you missed will be listed below. Select the correct answer and then click DONE. d. 14 feet, What must be worn at all times while working from scaffolding? 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. Training employees working on the scaffolds to recognize the associated hazards and understand procedures to control or minimize those hazards; and. What are the main hazards associated with erecting, dismantling, and working on scaffolds? What is the widest gap permitted between adjacent planks or deck units, or between the platform and the uprights of a scaffold? A scaffold is a temporary structure erected to support access or working platforms. Access must be provided when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. d.12. 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. 8 inches 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. Single-point adjustable suspension scaffolds. Select the correct answer and then click DONE. All equipment shall be inspected to ensure that it is in good condition and is serviceable. Employee is Pulled off Scaffold, Suffers Injuries-Guardrails May Have Saved Him. 2.Toss tools and other items from the scaffold. c.Long sleeve shirts The footing of scaffolding must be sound and rigid, capable of supporting the weight. b.18 inches d.15, 17, Ramps and walkways _______ feet or more above lower levels must have guardrail systems. 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. c.10 feet Ensure each employer working at any level over dangerous equipment while on a scaffold is protected from falling into the equipment. Select the correct answer and then click DONE. answers again. 904-01 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). Make sure standpipes, vents, electrical conduit, etc., which may give way under the force of a fall, are not being used as anchorage points. Have cross-cleats securely nailed at regular intervals not exceeding 500 millimetres. 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. This scaffold has no guardrails and is not fully planked. Erectors and dismantlers face additional access problems due to the incomplete condition of the scaffolding. \end{array} \text { use to get e-mail, surf the } \\ Designing platforms on two-point adjustable suspension types that are less than 36 inches wide to prevent instability; Making swaged attachments and spliced eyes on wire suspension ropes; and. (b) Googles? chubby The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. Manila or synthetic rope used for midrails must be inspected to ensure that the rope meets the strength requirement. 2.Work at a lower level than they usually do. \hline \text { Television } & \text { Blackberry } & \begin{array}{l} What must ramps and walkways 6 feet or more above lower levels be equipped with? Cross-braces of the proper length must be used to ensure that the scaffold will remain plumb and rigid. The riser height must be uniform, and the stair angle must be between 40 and 60 degrees from the horizontal. Specific requirements are described below. Barbara and her team erected scaffolding outside of a building earlier this week. Select the correct answer and then click DONE. Base plates or screw jacks shall be in firm contact with both the sills and the legs of the scaffolding. d.28 inchesa, When ladders are used on a supported scaffold that is taller than 35 feet, then rest platforms must be available at intervals no greater than: 2. b. Additionally, there is no material cohesion; during a storm the material can wash away under the scaffold base plates. Please answer all of the questions before checking your quiz answers. Supported scaffold poles, frames, uprights, etc. Ensure scaffolds are altered only under the supervision and direction of a competent person. 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 d.Add additional poles to support the scaffolding. Guardrails and/or personal fall arrest systems must be used when the scaffold work area is _____. In rare instances such as this, EHS will be called in to provide guidance as to the safety of the scaffold. a.Begin to erect the scaffolding. A ladder or other safe means of access must be provided. You will receive a message if you forgot to answer one of the questions. a.One mudsill per leg Do not force members to fit. Materials: Steel or plastic banding must not be used as a toprail or a midrail. 2. safety@uchicago.edu, The University of Chicago Environmental Health and Safety, University of Chicago Accident Incident Reporting (UCAIR) System, Disabilities Self-Identification Questionnaire, Accident Incident Reporting and Investigation Program, Institutional Roles and Responsibilities for Safety Culture, Temporary Stairways, Ladders and Portable Ladders, Temporary Structures, Grandstands, or Buildings, Two-Point Adjustable Suspension Scaffolds. and must be provided on any scaffold 10 feet or more above a lower level. Cross braces shall not be used as a means of access. 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. A scaffold users responsibilities include (but are not limited to): Scaffold planning, erection, and use require different levels of training. 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. [29 CFR 1926.451 (e) (1)] 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 . The victim was climbing the end-frame of a three-tiered metal scaffold when a midrail pulled loose. 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. When the scaffold work area is less than 18 inches (46 centimeters) wide, guardrails and/or personal fall arrest systems must be used. The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. As they return to the site to continue their work, the first step they should take is to: The work area for each scaffold platform and walkway must be at least 18 inches (46 centimeters) wide. d.35 feet, The top rail of a guardrail system must be installed how many inches above the platform? b.12, 16 being laid. When hook on ladders is used, they must be provided with a rest platform every 35 feet. Any damaged or weakened scaffold part must be: Select the items that are a possible concern when inspecting wood planks. Stair treads must be of slip-resistant design. d.12 inches, If the platform is over 10 feet, it cannot exceed how many inches over the centerline support? Refresher type training will be provided on an as needed basis; the periodicity of this training to be determined by EHS and the departments management, but should not exceed a period of 5 years from the previous training. 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. Make sure the planks are not allowed. \text { Blackberry Pearl; } \$ 20 \\ 11. 1. 2012-10-05T11:53:02-04:00 Employers must ensure that: Special consideration is required when scaffolding is to be erected on fill, soft or frozen ground. Note: Except where indicated, these . Counterweights shall be secured by mechanical means to the outrigger beams. Select the correct answer and then click DONE. d.2 inches, If the platform is 10 feet or less, it cannot exceed how many inches over the centerline support? Access shall be provided when scaffold platforms are more than 24 inches above or below the point of access. The competent person must inspect the area to determine if this is a firm footing (see Answer to Question 3). 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. Movement of the scaffold must be under the direction of a competent person. 5.Oxygen deficiencies, When should a personal fall arrest system be inspected? This includes (but is not limited to): mudsills, screw jacks, frames, braces, planks, access ladders, brackets, etc. Only the base coat gives the asphalt compressive strength.1. Scaffold Roles and Responsibilites Section. Make sure all brace connections are properly secured to prevent dislodging. 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. A list of competent persons will be maintained by the department and additional refresher type training will be provided on an as needed basis. 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. 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. Ted performed a site evaluation for the purpose of erecting scaffolding. The following table provides the clearance distances between scaffolds and power lines, or any other conductive material, while being erected, used, dismantled, altered or moved. Included here are general requirements for all scaffolds. 2.Electrical Scaffolds must be erected, dismantled, or moved only by properly trained workers under the supervision of a competent person. Which of the events increase potential GDP and which decrease it? Employers must provide access when the scaffold platforms are more than 2 feet (0.6 m) above or below a point of access. 1926.451(e . The end points of the cross bracing must be no more than 48 inches (1.3 meters) apart vertically. 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. Ensure scaffold components manufactured by different manufacturers are not allowed to be modified to make them fit together, unless a competent person determines that the resulting scaffold is structurally sound. 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Unless: the entire platform is over 10 feet or more above lower levels must have guardrail.!, are being used of buildings, are being used weakened scaffold part must be inspected to ensure the! Must b.Three times when are workers on scaffolding when there are no systems! With a working load of 750 pounds or frozen ground must inspect area... Above or below a point of access or maintenance of the scaffolding platform will be maintained by the department button. Assets ratio favorable or unfavorable many times the a means of access must be provided to a scaffold intended load applied it... Apple, and provide training for competent persons will be maintained by the department and refresher! And get directions } no University employee shall design any scaffolding less, it can not exceed inch! 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Bracing must be provided on any scaffold 10 feet or more above lower levels must have systems!
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