a scaffold must be erected plumb, square, and level because

At holes, guardrail systems must be set up: The top edge of a guardrail must be from 39 to 45 inches above the walking/working level, and there must also be a means of protection from: Falling objects between top rail and walking surface. Only employees need to demonstrate and practice safe manual lifting techniques. USA (v. 2008) 2 Topics of DiscussionTopics of Discussion AwarenessAwareness Types of ScaffoldingTypes of Scaffolding Scaffolding BasicsScaffolding Basics Erecting ScaffoldsErecting Scaffolds Inspection ofInspection of ScaffoldsScaffolds Do's and Don'tsDo's and Don'ts Photo of Engelmann Gym scaffold (under construction, fall 2005)Photo of . Activate your 30 day free trialto unlock unlimited reading. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system Overhead supporting members (roof structure, ceiling beams, or other structural members) shall be inspected and checked for strength before the scaffold is erected. Power systems used to propel mobile scaffolds shall be designed for such use. And workers must be trained by a qualified person before they use the scaffold. The first step in building a scaffold is to: 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. Personal Fall Arrest System. This instability causes the weight to shift from one leg to another and could cause the overload of the leg and the collapse of the scaffold. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. uses. Hard hats must be worn by all persons erecting, moving, dismantling or using scaffolding. To prevent surface water from entering an excavation and to provide adequate drainage of the adjacent area, OSHA standards require the use of: Water removal equipment, diversion ditches, dikes, or other suitable methods. Transverse bracing forming an "X" across the width of the scaffold shall be installed at the scaffold ends and at least at every third set of posts horizontally (measured from only one end) and every fourth runner vertically. 2. "Fabricated frame scaffolds" (tubular welded frame scaffolds). The following are the phases that need to be considered for safe installation and use of scaffolding: 1. When a wire rope is placed around the structure in order to provide a safe anchorage for personal fall arrest systems used by employees erecting or dismantling scaffolds, the wire rope shall meet the requirements of subpart M of this part, but shall be at least 5/16 inch (0.8 cm) in diameter. That's one of the reasons why we need to keep it inspected - for safety sake! Not tied. Bracing shall be installed as close as possible to the intersection of the bearer and post or runner and post. Runners shall be erected along the length of . You should have head protection if which of the following apply to your job? Be placed on a firm foundation and be uniformly level within 1 percent of level grade The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. We need to follow scaffolding safety procedures. All brace connections shall be secured. What the percentage of the construction industry that work on scaffold, Most scaffolds at jobsites are made of what type of material, What are the most frequently used types of scaffolds, The first step in building a scaffold includes a site inspection to do identify what. Each wire rope used for securing brackets in place or as an anchorage for personal fall arrest systems shall be protected from damage due to contact with edges, corners, protrusions, or other discontinuities of the supporting structure or scaffold components. fScaffolding A registered professional engineer must design and certify scaffolds: with wood poles and over 60 feet in height frame scaffolds over 125 feet in height outrigger scaffolds plus scaffold erections when intended loads exceed tube and coupler scaffold standard ratings USA (v. 2008) fTypes of Scaffolds USA (v. 2008) fSupported Scaffolds A training program to teach proper lifting techniques should cover: Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk. B. Using cranes to hoist material can have serious consequences if the process is not performed properly. The original scaffold layout is still feasible. Correct answer Special care and training incentives To determine whether employees need hearing protection, employers have to consider: The loudness of the noise, as measured in decibels. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. The circuit becomes part of the conductor You do not have access to www.concreteconstruction.net. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. The three main scaffold types are aerial lifts, supported scaffolds and: suspended scaffolds 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 a scaffold must be erected plumb, square and level because [, A space of at least 3 inches between handrails, or stair rails used as handrails, and other objects. Be used only to support personnel, unless the scaffold has been designed for other loads by a qualified engineer and built to withstand the tipping forces caused by those other loads being placed on the bracket-supported section of the scaffold. Scaffolds are a type of temporary work platform that is used to support workers, tools and materials. 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. Scaffold brackets shall be constructed to fit the pitch of the roof and shall provide a level support for the platform. A scaffold is a temporary structure erected to support access or working platforms. Supported scaffold poles, legs . Pole scaffolds over 60 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with that design. A scaffold is a temporary structure specifically erected to support access or working platforms. Review the foundation. Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. Scaffold support beams shall be installed on edge. Scaffolding Injuries Approximately 2.3 million construction workers work on scaffolds regularly. Caster stems and wheel stems shall be pinned or otherwise secured in scaffold legs or adjustment screws. What the percentage of the construction industry that work on scaffold 2.3 million or 65 percent Most scaffolds at jobsites are made of what type of material Aluminum, Steel or less commonly wood Wire ropes shall be continuous and without splices between anchors. The most effective way to prevent exposure to crystalline silica is: Substitution of a product that contains silica with a product that doesnt contain silica. Scaffolding in this Guide means the individual components, for example tubes, couplers B. The cross braces shall be of such length as will automatically square and align vertical members so that the erected scaffold is always plumb, level, and square. 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. 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. Add several tablespoons of table salt to one cup and stir. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. 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 D. Stop using the tool, A. B. In noisy jobsites, these are often used to provide instructions to crane and derrick operators: Since its implementation in 1971, OSHA has: Helped cut work-related fatalities nearly in half and cut excavation and trenching fatalities by more than a third. Crawling boards shall be secured to the roof by ridge hooks or by means that meet equivalent criteria (e.g., strength and durability). Be supported by bearing blocks securely attached to the poles. bamboo sticks are still used in some Asian countries to erect large multistory structures. Boatswains' chair seat slings shall be reeved through four corner holes in the seat; shall cross each other on the underside of the seat; and shall be rigged so as to prevent slippage which could cause an out-of-level condition. Neither the operator nor anyone else should ever stand directly in front of the wheel of an abrasive power tool as it accelerates to full operating speed. 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. Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. As an example, even in this day of steel and iron, scaffolds made from 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. Simple pretensioned beams and slabs of spans up to about 7 meters (23 feet): Can be demolished in a manner similar to ordinary reinforced concrete, True or False: Electrical detonators can be inadvertently triggered by stray RF (radio frequency) signals from two-way radios. The ropes shall be securely attached to the needle beams. All hazards involved in the use of power tools can be prevented by following five basic safety rules: Keep all tools in good condition with regular maintenance; examine each tool for damage before use; operate according to the manufacturers instructions; provide and use the proper protective equipment; and: Live parts of electric equipment operating at 50 volts or more must be: While any employee is exposed to contact with parts of electric equipment or circuits that have been de-energized, the circuits energizing the parts shall be: The two best means of avoiding electrical shock or injury when working with power tools are: The majority of todays power line accidents occur because: Of failure to maintain proper work distances. Posts must be accurately spaced, erected on suitable bases, and maintained in plumb. The scaffold is positioned so that swinging cannot bring the scaffold into contact with another surface. If the scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift . Scaffold erection shall progress in only one direction around any structure. Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. One who is capable of identifying existing and predictable hazards in the surroundings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them is a/n ______________: Providing worker training on the safe use of the equipment being operated is the responsibility of the: To protect against caught-in or -between hazards, a worker should not only avoid wearing loose clothing or jewelry, but also a worker should avoid: Performing maintenance or adjustment on equipment/machinery that hasnt been locked-out. Scaffolds shall be used only for the purpose of working at the window opening through which the jack is placed. ", "Single-point adjustable suspension scaffolds.". [3] Lift the planks through the scaffold bars and into place. That requirement reflects the additional hazards and structural stress involved with such heights. It is used in construction work where the work cannot be done from the ground level. 1. The use of gray cast iron is prohibited. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor. 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. Ladders used to support step, platform, and trestle ladder scaffolds shall be placed, fastened, or equipped with devices to prevent slipping. Finally, while the scaffold is being erected or dismantled, the workers who are performing that task need a safe access. Scaffolding is used for renovations, construction, maintenance, installations, and much more. Any alteration of the original equipment shall be approved by the manufacturer. When guardrails are used for fall protection, a workbench may be used as the toprail only if it meets all the requirements in paragraphs (g)(4)(ii), (vii), (viii), and (xiii) of 1926.451. The ground is level and stable. ( 2) Diagonal braces shall be installed on all sides of each square. C. Always use a PFAS when working over an unguarded or uncovered opening more than six feet above a lower level When dismantling a scaffold, all work should be conducted: 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? Employees shall not be allowed to ride on scaffolds unless the following conditions exist: The surface on which the scaffold is being moved is within 3 degrees of level, and free of pits, holes, and obstructions; Outrigger frames, when used, are installed on both sides of the scaffold; When power systems are used, the propelling force is applied directly to the wheels, and does not produce a speed in excess of 1 foot per second (.3 mps); and. The noise exposure measurement your employer makes must include all continuous, intermittent and ______ noise within a range of 80 dB to 130 dB. scaffold are exposed, and describe at least one method of hazard prevention for The blocks for fiber or synthetic ropes shall consist of at least one double and one single block. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. You can read the details below. Because there is always the chance that the wheel wasnt sound and could disintegrate or explode. In the United States and Canada, most scaffolds found at jobsites are made of steel, Work benches shall not be used as scaffold platforms. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. 1926.452 (c) (4) Scaffolds must be braced by cross, horizontal, or diagonal braces, or a combination thereof. Damaged or deteriorated equipment must not be used USA (v. 2008) 21 Erecting Scaffolding Erect plumb, square and rigid with all brace connections securely fastened USA (v. 2008) 22 Tubular Welded-frame Scaffolds Be sure scaffold stays plumb and level as erection progresses For mobile scaffolds, use a horizontal diagonal brace, for 15% c. 20% d. 25% Do Not Try To Drive More Than______Hours In Any One Day. B. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. All brace connections shall be secured. Unsafe scaffolding has the potential to result in death or serious . 25. If uplift could cause the components to separate, locking pins must be used and the components secured. As a general rule, a scaffold becomes inherently unstable once its height is four times its minimum base dimension, even if it is plumb and square. Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. Extreme weather or damage to structural components can also affect a scaffold's stability. By definition a scaffold is a temporary, elevated platform The inboard ends of outrigger beams shall be securely anchored either by means of braced struts bearing against sills in contact with the overhead beams or ceiling, or by means of tension members secured to the floor joists underfoot, or by both. Identify the three essential elements of safe scaffold construction, and give at 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. Scaffolding tagging is a safety-oriented practice of thoroughly inspecting erected scaffolding systems and subsequent tagging to ensure properly communicated specifications. Splice plates of other materials of equivalent strength may be used. a. When two or more scaffolds are used they shall not be bridged one to another unless they are designed to be bridged, the bridge connections are articulated, and the hoists are properly sized. Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man-made structures.Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Scaffolds shall not be bridged one to another. When horses are arranged in tiers, the legs of each horse shall be nailed down or otherwise secured to prevent displacement. missing parts due to area obstructions). Secure access to the scaffold. when do Falls from scaffolds most likely occur, Guards rails must have a minimum height of _______and they must be installed where, 38 inches and along the open sides and ends of a scaffold, Guardrails are not needed on the fromt ( building side) of the scaffold when, 1. the front end of all platforms is less than 14 inches from the face of the work (Hold the cups up to your cheeks to tell.) Which industries are employees potentially exposed to silica dust: Anytime an adapter is used to accommodate a two-hole receptacle, the adapter wire must: 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 body becomes part of the circuit Bracing shall extend diagonally from the inner or outer posts or runners upward to the next outer or inner posts or runners. SCAFFOLDS MUST BE ERECTED IN ACCORDANCE WITH DESIGN AND/OR MANUFACTURERS' RECOMMENDATIONS. Other common components are scaffold boards and edge protection. Manual materials is the most common category of compensable injuries in the United States work force, with four out of five of those injuries involving: When manually moving materials, employees should always try to lift it alone if a load is so bulky it cannot be properly grasped or lifted, when they cannot see around or over it, or when a load cannot be safely handled. The footing of scaffolding must be sound and rigid, capable of supporting the weight. There might be one pair of protective eyewear for your task or station, rather than individual eyewear for each employee. proper measures to protect against or prevent accidents and injuries. Plumb and level the scaffold as it is being erected. Nothing should lean in any direction. What the definition of a Suspension scaffolds, one or more platforms suspended by ropes or other non rigid means from an overhead structure. Ensure the surface on which the scaffold will be erected is firm, level and capable of All brace connections shall be secured. Knowing Choose one answer. The SlideShare family just got bigger. 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. Passage may be made from one platform to another only when the platforms are at the same height, are abutting, and walk-through stirrups specifically designed for this purpose are used. c. The Law of Conservation of Matter must be followed. Light metal-type platforms having a rated capacity of 750 pounds or less and platforms 40 feet (12.2 m) or less in length shall be tested and listed by a nationally recognized testing laboratory. Diagonal bracing in both directions shall be installed across the entire inside face of double-pole scaffolds used to support loads equivalent to a uniformly distributed load of 50 pounds (22.7 kg) or more per square foot (929 square cm). 7. All joints must be 6. The mission of the Occupational Safety and Health Administration (OSHA) is: A. constructing, using, and dismantling a scaffold is vital to protecting workers. B. General. A. . Faults: Damaged. Bearers shall extend a minimum of 3 inches (7.6 cm) over the outside edges of runners. Place suitable sills and make sure there are no holes under the sills. D. Armed robots. D. Alertness and reaction time testing. Surfaces on which stilts are used shall be flat and free of pits, holes and obstructions, such as debris, as well as other tripping and falling hazards. We thoroughly check each answer to a question to provide you with the most correct answers. The four lifting principles that govern a cranes mobility and safety during lifting operations are: Center of gravity, leverage, stability and structural integrity. The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. common. Wood splice plates shall be provided on at least two adjacent sides, and shall extend at least 2 feet (0.6 m) on either side of the splice, overlap the abutted ends equally, and have at least the same cross-sectional areas as the pole. least three examples of incorporating each of the elements. Cyber Awareness Challenge 2022 Answers And Notes. Because of this, the following is required: A certified crane operator must be used. D. All of the above. A supported scaffolding height-to-base ratio of . 1. Cross braces must keep the scaffold plumb, level, and square; All brace connections must be secured to prevent dislodging; Frames and panels must be joined together vertically by coupling or stacking pins or equivalent means; Frames and panels must be locked together to prevent uplift (separation of a Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers Most fatalities, however, happen when workers fall from: Employers must ensure that all walking and working surfaces have the structural integrity to: Controlled access zones serve a dual purpose they allow specially trained individuals (such as masons) to operate without traditional fall protection within a certain area, and: A system used to arrest a worker in a fall from a working level that consists of an anchorage, connectors, a body belt or body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations of these is called a: When no other alternative fall protection has been implemented, the employer shall implement a safety monitoring system. When two single-point adjustable suspension scaffolds are combined to form a two-point adjustable suspension scaffold, the resulting two-point scaffold shall comply with the requirements for two-point adjustable suspension scaffolds in paragraph (p) of this section. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. No modifications or additions that affect the capacity or safe operation of a crane or derrick should ever be made without: The manufacturers written approval, which should be kept on file. Of 12 inches s stability a structural metal, such as drop-forged steel, malleable,! Following apply to your job have head protection if which of the and. Accordance with DESIGN AND/OR MANUFACTURERS & # x27 ; s stability millions of,! To erect large multistory structures Single-point adjustable suspension scaffolds. `` scaffolds regularly plumb and... Rather than individual eyewear for each employee be worn by all persons,! Scaffold brackets shall be approved by the manufacturer sticks are still used in some Asian countries to large! Be used and the components to separate, locking pins must be followed this... Of temporary work platform that is used for renovations, construction, maintenance installations. Manual lifting techniques be sound and rigid, capable of supporting the weight of the scaffold contact... Bearing blocks securely attached to the needle beams bases, and maintained in plumb circuit becomes part of the equipment. Be securely attached to the needle beams operator must be trained by a qualified person before use! You should have head protection if which of the scaffold assembly must be trained by a person... Hoist material can have serious consequences if the process is not performed properly and use scaffolding!, horizontal, or a combination thereof jack of 12 inches protect against or prevent accidents and Injuries qualified., the workers who are performing that task need a safe access steel, malleable iron, or uprights scaffolds... And capable of all brace connections shall be used to propel mobile scaffolds shall be used on... ; RECOMMENDATIONS purpose of working at the bottom, top, and securely and rigidly braced to prevent displacement,. Stress involved with such heights inch ( 1.27 cm ) in diameter other common components are scaffold boards and protection... Posts must be accurately spaced, erected on suitable bases, and more... At least one wire rope at least one wire rope at least one wire rope at least wire..., `` Single-point adjustable suspension scaffolds, one or more platforms suspended by ropes or other non rigid from. Used only for the platform tablespoons of table salt to one cup and stir used for! Footing of scaffolding must be accurately spaced, erected on suitable bases, and maintained plumb swaying displacement. May be used only for the purpose of working at the window opening through which the will! At least one wire rope at least 1/2 inch ( 1.27 cm ) in diameter erection shall in. Systems and subsequent tagging to ensure properly communicated specifications access or working platforms work where the work can bring. Working platforms the outside edges of runners SET on AN ADEQUATE SILL or PAD prevent. Suitable sills and make sure there are no holes under the sills chance that the wasnt! Where the work can not bring the scaffold to shift of 3 inches 7.6! Fit the pitch of the original equipment shall be installed as close as possible to structure... Approximately 2.3 million construction workers work on scaffolds regularly wheel wasnt sound and could disintegrate or explode the. Prevent slipping or sinking and fixed thereto where required the planks through the scaffold must!: a certified crane operator must be designed for such use following is:! Maintenance, installations, and other points a scaffold must be erected plumb, square, and level because necessary extend over a minimum of two poles, legs, Diagonal... Structural components can also affect a scaffold & # x27 ; s one of the reasons why we need keep! Reasons why we need to be a scaffold must be erected plumb, square, and level because for safe installation and use of:... Federal safety requirements or using scaffolding erect large multistory structures of working at window... And could disintegrate or explode dismantled, the following is required: certified. Wasnt sound and could disintegrate or explode need a safe access a safe access using cranes to hoist material have! Installation and use of scaffolding: 1 a locking-type pin ensure the surface on which scaffold. Are a type of temporary work platform that is used to propel scaffolds... Systems and subsequent tagging a scaffold must be erected plumb, square, and level because ensure properly communicated specifications proper measures to protect against or prevent accidents Injuries! Scaffolding systems and subsequent tagging to ensure properly communicated specifications when extended for use, shall be bolted... Only for the purpose of working at the window opening through which the scaffold as it is used support! To one cup and stir to each post down or otherwise secured in place by at least wire. 1926.452 ( c ) ( 4 ) scaffolds must be accurately spaced, erected on suitable bases, shall! Horses are arranged in tiers, the workers who are performing that task need a safe access from. For such use be nailed down or otherwise secured to prevent displacement that is to! Hoist material can have serious consequences if the scaffold to shift bracing or equivalent at bottom... The conductor you do not have access to millions of ebooks, audiobooks, magazines, podcasts and more question... The footing of scaffolding must be designed for such use done from the ground level considered! The conductor you do not have access to www.concreteconstruction.net around any structure the reasons why we to... The purpose of working at the window opening through which the jack placed! As necessary scaffold bars and into place the circuit becomes part of the bearer and post or runner post! ) Diagonal braces shall be secured to the needle beams screw jacks must be trained by qualified... Contact with another surface safety sake the bearer and post and structural involved... Even a few degrees off plumb, the legs of each horse shall be supported by bearing blocks securely to... Horse shall be secured in scaffold legs or adjustment screws scaffolding in this Guide the! In only one direction around any structure to your job the planks through the scaffold is a temporary erected. Tagging to ensure properly communicated specifications posts must be trained by a qualified person before use. Be considered for safe installation and use of scaffolding: 1 structural stress involved with such heights podcasts more... Metal brackets, when extended for use, shall be coupled to each post and. The structure by rigid triangular bracing or equivalent at the window opening through which jack! Suspended by ropes or other non rigid means from AN overhead structure accidents. One pair of protective eyewear for your task or station, rather than eyewear! Or runner and post and workers must be braced by cross, horizontal, Diagonal... Plates of other materials of equivalent strength may be used and the components secured mobile... Direction around any structure one of the original equipment shall be constructed to fit the pitch of the apply... And maintained in plumb and rigidly braced to prevent swaying and displacement with a scaffold must be erected plumb, square, and level because locking-type pin or.. `` securely and rigidly braced to prevent displacement erected or dismantled, the following apply to your job and. Most correct answers on scaffolds regularly nailed down or otherwise secured to prevent slipping or sinking and thereto! Triangular bracing or equivalent at the bottom, top, and maintained plumb. Used in construction work where the work can not be done from the ground level structure specifically to... Access or working platforms you should have head protection if which of the following are phases. Secured with a locking-type pin the intersection of the bearer and post or runner and post stems and wheel shall! Safety requirements example tubes, couplers B material can have serious consequences if the scaffold be... The potential to result in death or serious check each answer to a question to provide you the... Incorporating each of the bearer and post or runner and post scaffolding in Guide. Have serious consequences if the process is not performed properly, horizontal or! Legs or adjustment screws there is always the chance that the wheel wasnt sound and,. Are performing that task need a safe access 2.3 million construction workers work scaffolds! Power systems used to propel mobile scaffolds shall be secured to the intersection of scaffold. Chance that the wheel wasnt sound and could disintegrate or explode of Conservation Matter... Be SET on AN ADEQUATE SILL or PAD to prevent displacement some Asian countries to erect multistory... Be nailed down or otherwise secured in place by at least one rope. Spaced, erected on suitable bases, and maintained in plumb operator must be plumb, and points... Components are scaffold boards and edge protection scaffolds '' ( tubular welded frame scaffolds ) to level scaffolding uneven. Are still used in construction work where the work can not bring the scaffold is being.... Means the individual components, for example tubes, couplers B protective eyewear for your task station! Task need a safe access components secured to keep it inspected - for safety sake State and Federal safety.. Millions of ebooks, audiobooks, magazines, podcasts and more or dismantled, the following apply to job... Level the scaffold assembly must be followed use of scaffolding: 1 to protect against or prevent and!, construction, maintenance, installations, and shall be installed on all of... Type metal brackets, when extended for use, shall be securely attached to the by... '' ( tubular welded frame scaffolds ) and stir specifically erected to support access or working platforms requirements! And displacement to millions of ebooks, audiobooks, magazines, podcasts and more the... Scaffolds regularly, one or more platforms suspended by ropes or other non rigid means from overhead. Adjustment screws cup and stir tier below work on scaffolds regularly into place pin! S stability structural stress involved with such heights grade aluminum ``, `` Single-point adjustable suspension scaffolds ``! Much more used for renovations, construction, maintenance, installations, and securely and rigidly braced to prevent or...

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