Ladders used to support step, platform, and trestle ladder scaffolds shall be placed, fastened, or equipped with devices to prevent slipping. Frequently used types of scaffolds include the The body becomes part of the circuit Additional requirements applicable to specific types of scaffolds. D. Alertness and reaction time testing. The fulcrum point of outrigger beams shall rest on secure bearings at least 6 inches (15.2 cm) in each horizontal dimension. Employees are plastering an lathing 18 inches or less from the front of the edge, What type of scaffolds you should not use, What is another don't that you should remember, Not to load scaffolds or scaffold components in excess of their maximum intended loads or rated capacities, which ever is less, OSHA 1926.454 (c) states: when an employer gas reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall, Retrain each such employee so that the requisite proficiency is regained, Tube and coupler scaffolds over 125 feet high must be designed by, What type of scaffold other than the tube and coupler scaffold- is ideal for use around complex structures, This scaffold is simply a rope attached to a harness with an assembly like a boatswain's chair for the worker to sit in, If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and or personal fall arrest systems(PFAS).The type of fall protection required will depend upon, Final Exam OSHA 10 hour construction program, Introduction to Chemical Engineering Thermodynamics, Hendrick Van Ness, J.M. B. Keep Vehicles and Heavy Equipment Clear. uses. Rated load capacities, recommended operating speeds, and special hazard warnings or instructions must be: Conspicuously posted on the crane, where the crane operator can see them while he is at his control station. Make sure the scaffold is stable. Employers must provide employees with effective information and training on hazardous chemicals in their work area: At the time of their initial assignment. All other connections of the scaffold are tight and secure; c. All components of the scaffold, including planks, are securely fastened. AEGCPs are implemented on construction sites to oversee: The OSHA standard mandates that any time a worker is at a height of six feet or more, the worker is at risk and needs to be protected. 2. Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. According to OSHA standard 1926.451 (g) (1), anyone working on a scaffold more than 10 feet above a lower level must be protected from falling to that lower level. To prevent their displacement, platform units shall be nailed, bolted, or otherwise secured to outriggers. Just a few example you can find fast on the interwebs, NFI . Prevent An Expressway Emergency By Merging Without _____. of first grade manila rope. The scaffold must be plumb, level and squared wi th all brace connections securely fastened. When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced prior to receiving the new platforms. Your IP: 143.244.138.144, Requested URL: www.concreteconstruction.net/_view-object?id=00000154-24cb-db06-a1fe-77cb16a60000, User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36. Each supporting rope shall be hitched around one end of the bearer and pass under the platform to the other end of the bearer where it is hitched again, leaving sufficient rope at each end for the supporting ties. If bridges are not used, passage may be made from one platform to another only when the platforms are at the same height and are abutting. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. The checks above are common scaffolding faults to look out for that show you the scaffold structure is unsafe. The ladder jack shall be so designed and constructed that it will bear on the side rails and ladder rungs or on the ladder rungs alone. Before a scaffold is moved, each employee on the scaffold shall be made aware of the move. Clipping is a handy way to collect important slides you want to go back to later. For example, if lumber is used, it must be construction grade or Number 1 Grade spruce. The entire inside face of double-pole scaffolds used to support loads of 50 lbs. The use of safe lifting postures and timing Frames and panels shall be braced by cross, horizontal, or diagonal braces, or combination thereof, which secure vertical members together laterally. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Scaffolds must be erected in accordance with design and/or manufacturers' recommendations. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). Scaffolds and scaffold components shall be designed by a registered professional engineer and shall be constructed and loaded in accordance with such design. Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? proper measures to protect against or prevent accidents and injuries. Each has Hot wires, ungrounded wires that can cause a shock if you touch them, are usually: More than 50 percent of electrocutions are caused by a worker coming in direct contact with: The OSHA standard requires flexible cords to be rated for: What is the most frequent violation of OSHA electrical standards? We've updated our privacy policy. On scaffolds whose length is less than their height, such bracing shall be installed from the base of the end posts upward to the opposite end posts, and then in alternating directions until reaching the top of the scaffold. Hardware should be included to fasten the planks into place. Scaffold casters and wheels shall be locked with positive wheel and/or wheel and swivel locks, or equivalent means, to prevent movement of the scaffold while the scaffold is used in a stationary manner. A supported scaffolding height-to-base ratio of . The mission of the Occupational Safety and Health Administration (OSHA) is: A. Place suitable sills and make sure there are no holes under the sills. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. ", "Step, platform, and trestle ladder scaffolds. (Do not use insulating Styrofoam cups.) (Hold the cups up to your cheeks to tell.) Fixed Scaffolding Erection Scaffold must be erected, moved, or disassembled only by and under the supervision of qualied persons. 1. Secure access to the scaffold. Each bracket shall be attached to the securing wire rope (or ropes) by a positive locking device capable of preventing the unintentional detachment of the bracket from the rope, or by equivalent means. Vehicle mounted devices such as cherry pickers or boot trucks used to get a worker to an elevated position. Horizontally at each end and at 30 feet intervals measured from one end only. These rules were combined under the umbrella of OSHA. ERECTED SCAFFOLDS SHOULD BE CONTINUALLY INSPECTED by users to be sure that they are maintained in safe condition. improper grounding of circuitry and equipment. C. Have all brakes and locking devices set when the occupied personnel platform is in stationary position To ensure scaffolding safety, the scaffold must be built under the supervision of a competent person; someone who has been thoroughly trained on safe work practices when working on scaffoldings. The platform shall be supported by a minimum of two bearers, each of which shall project a minimum of 6 inches (15.2 cm) beyond the platform on both sides. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the direct supervision of a scaffold competent person. When the pump jack has to pass bracing already installed, an additional brace shall be installed approximately 4 feet (1.2 m) above the brace to be passed, and shall be left in place until the pump jack has been moved and the original brace reinstalled. Save my name, email, and website in this browser for the next time I comment. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . An estimated 2.3 million construction workers, or 65 percent of the construction industry, Scaffolding in this Guide means the individual components, for example tubes, couplers Remote detonators to implode a structure Scaffolds constructed of tube and coupler components shall also comply with the requirements of paragraph (b) of this section; Scaffolds constructed of fabricated frame components shall also comply with the requirements of paragraph (c) of this section. "Bricklayers' square scaffolds (squares). "Plasterers', decorators', and large area scaffolds." Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and: Under the new HAZCOM/GHS requirements for Safety Data Sheets (SDSs) they must now have 16 total Sections. Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. The ground is level and stable. It is used in construction work where the work cannot be done from the ground level. Symptoms of silicosis ____________ , so workers should have a chest x-ray to see if there is lung damage. Where leveling of the scaffold is necessary, screw jacks or equivalent means shall be used. Scaffolds must be constructed of suitable structural materials. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for pole scaffolds under 60 feet in height. All joints must be 1. Platforms supported by wire ropes shall have hook-shaped stops on each end of the platforms to prevent them from slipping off the wire ropes. Frames and panels shall be joined together vertically by coupling or stacking pins or equivalent means. D. All of the above. Fasten all couplers and/or connections securely before assembling the next level . When wood poles are constructed of two continuous lengths, they shall be joined together with the seam parallel to the bracket. Electricity travels in closed circuits, and its normal route is through a conductor. each of the hazards. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. OSHA 10-Hour Construction Course: Module 5 Scaffolds Page 1 of 22 5% b. While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. This means that whatever you're working on won't be tilted or sloped in any way. Scaffolding is used for renovations, construction, maintenance, installations, and much more. B. The bottom runners and bearers shall be located as close to the base as possible. 1. Stilts, when used, shall be used in accordance with the following requirements: [44 FR 8577, Feb. 9, 1979; 44 FR 20940. Work benches shall not be used as scaffold platforms. A scaffold is a temporary structure erected to support access or working platforms. Which of the following is an element of a hearing conservation program? A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. a. Subscripts in the reactants must be conserved in the products. On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. Scaffolds over 125 feet (38.0 m) in height above their base plates shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. A training program to teach proper lifting techniques should cover: A. Employers must provide a training program that teaches employees who might be exposed to fall hazards: How to recognize such hazards and how to minimize them. Tensioning of each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be by means of a turnbuckle at least 1 inch (2.54 cm) in diameter, or by equivalent means. Safety footwear has to meet minimum compression and impact performance standards, set by: Gloves that are chemically resistant are usually made from: True or False: Full-body protection is sometimes made from materials such as duck, paper-like fiber, or rubberized fabrics, depending upon the hazard. A scaffold must be erected "plumb, square, and level," because: If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold. The following examp le is based on building a scaffold that is 2.1 x 1.5 m (7 x 5 ft.) x 1 frame high. Boatswains' chair tackle shall consist of correct size ball bearings or bushed blocks containing safety hooks and properly "eye-spliced" minimum five-eighth (5/8) inch (1.6 cm) diameter first-grade manila rope, or other rope which will satisfy the criteria (e.g., strength and durability) of manila rope. "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". Cloudflare is currently unable to resolve your requested domain. A thorough understanding of all aspects of Operators must complete three separate aspects of powered industrial truck training: formal training, practice training, and: To adhere to fire safety precautions, flammable and combustible materials must be stored according to: General safety principles that can help reduce workplace accidents include: Material handling tasks should be designed to minimize _________ of the given activity. d. Phases are often shown for each compound but are not critical to balancing an equation. The purpose of this survey is: determine the condition of the structure so that measures can be taken, if necessary, to prevent the premature collapse of any portion of the structure. least three examples of incorporating each of the elements. Window jacks shall not be used to support planks placed between one window jack and another, or for other elements of scaffolding. Scaffolding must not be placed on unstable objects, such as bricks or blocks. The two steps for avoiding hazards that are always taken before the need for PPE is considered are: The three main scaffold types are aerial lifts, supported scaffolds and: Because using cranes or derricks to hoist personnel poses a serious risk to the employees being lifted, any cranes and derricks that hoist personnel must: Be placed on a firm foundation and be uniformly level within 1 percent of level grade. Erecting Scaffolding Safely. Diagonal braces shall be installed on all sides of each square. Choose one answer. 6. OSHA 1926.454(c) states: When an employer has reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall: Retrain each such employee so that the requisite proficiency is regained. which of the following statements is false? Do not force frames or . Brackets used to support cantilevered loads shall: Be seated with side-brackets parallel to the frames and end-brackets at 90 degrees to the frames; Not be bent or twisted from these positions; and. Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. Access between levels is by timber or metal ladders, which are securely tied to the scaffold. B. Bamboo scaffolds missing parts due to area obstructions). scaffold are exposed, and describe at least one method of hazard prevention for Platform units shall be securely attached to the needle beams by bolts or equivalent means. The height to base width ratio of the scaffold during movement is two to one or less, unless the scaffold is designed and constructed to meet or exceed nationally recognized stability test requirements such as those listed in paragraph 2. The maximum permissible span for 2 X 10 inch or wider planks is shown below in "Material." . Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal Cyber Awareness Challenge 2022 Answers And Notes. They must obtain information from the scaffold manufacturer, supplier, site management, and consult with the workers who undertake the erecting, altering or dismantling of the scaffolds. 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Shall be constructed and loaded in accordance with such design injuries Approximately million... Be placed directly over the horse in the earths surface formed by earth removal Awareness! Platform units shall be joined together with the seam parallel to the scaffold shall be made aware the... Stacking pins or equivalent means of 50 lbs greater than their height, such bracing shall be placed! Is a temporary structure erected to support loads of 50 lbs the reactants must be construction or... Holes under the umbrella of OSHA be used as scaffold platforms each dimension...
a scaffold must be erected plumb, square, and level because