When two by fours are spliced to make a pole, mending plates shall be installed at all splices to develop the full strength of the member. Save my name, email, and website in this browser for the next time I comment. Correct scaffold erection is one of the key factors that ensure scaffold safety. Learning Objectives 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. Do Not Try To Drive More Than______Hours In Any One Day. Ray ID: 7a19bde4e8771d14 The body becomes part of the circuit that construction workers use for working safely at elevations. What happens to the temperature of the water relative to that of the untreated water? 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. Couplers shall be of a structural metal, such as drop-forged steel, malleable iron, or structural grade aluminum. Non-mandatory Appendix A to this subpart contains examples of criteria that will enable an employer to comply with design and loading requirements for tube and coupler scaffolds under 125 feet in height. 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. Supported scaffolds with a height more than four times that minimum base width (4:1) must be what, According to manufacturer's recommendation's but at a minimum the scaffold must be tied closet to the 4:1 height and them repeated every 20 feet vertically to a scaffold 3 feet wide, How should the guys ties or braces be placed. Prior to starting all demolition operations, OSHA 1926.850 (a) requires that an engineering survey of the structure be conducted by a competent person. We thoroughly check each answer to a question to provide you with the most correct answers. Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. On scaffolds whose length is greater than their height, such bracing shall be repeated beginning at least at every fifth post. Scaffold erection shall progress in only one direction around any structure. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). Each bearer shall be securely fastened to the platform. a. Subscripts in the reactants must be conserved in the products. The original scaffold layout is still feasible. C. Wear goggles or safety spectacles 3. Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. This poses a risk of electrocution not just to the worker holding the tool, but to everyone who contacts the scaffold. Identify the three essential elements of safe scaffold construction, and give at 5% b. 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. Smith, Michael Abbott, Fundamentals of Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer. has financial rewards, with an estimated annual savings of $90 million for American 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. Keep Vehicles and Heavy Equipment Clear. ERECTED SCAFFOLDS SHOULD BE CONTINUALLY INSPECTED by users to be sure that they are maintained in safe condition. A narrow excavation made below the surface of the ground in which the depth is greater than the width with the width not to exceed 15 feet Ensure the scaffold has not been compromised by snow or ice conditions. 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. Uplift might be caused by the action of wind on a secured deck or by the leverage action of a cantilever side bracket on the scaffold. 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. "Bricklayers' square scaffolds (squares). 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. Vehicle mounted devices such as cherry pickers or boot trucks used to get a worker to an elevated position. You can read the details below. Move the scaffold into your desired position, and make sure it is level and secure. It provides a safe and stable platform for workers. The type of fall protection required will depend upon: The four main causes of crane accidents are contact with power lines, overturns, falls and mechanical failure. Make sure the scaffold is stable. 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 We've updated our privacy policy. Screw jacks must be used to level scaffolding on uneven surfaces with a maximum extension for a screw jack of 12 inches. Before a scaffold is moved, each employee on the scaffold shall be made aware of the move. 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. 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. When a heat-producing process such as gas or arc welding is being conducted, boatswains' chair seat slings shall be a minimum of three-eight (3/8) inch (1.0 cm) wire rope. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. Brackets (including those provided with pointed metal projections) shall be anchored in place by nails unless it is impractical to use nails. Brackets shall be secured in place by at least one wire rope at least 1/2 inch (1.27 cm) in diameter. 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). ", "Step, platform, and trestle ladder scaffolds. 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. Click here to review the details. common. Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. 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. A training program to teach proper lifting techniques should cover: A. Personal Fall Arrest System. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? When only two ropes are used with each float: They shall be arranged so as to provide four ends which are securely fastened to overhead supports. OSHA MODULE 5 Scaffolds ( 2) Diagonal braces shall be installed on all sides of each square. 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. Choose one answer. By the user only b. Plumb c. By a contractor d. Plumb and level e. Level c Safe rigging practice dictates that weight estimates of objects to be lifted, when the objects are relatively lightweight, should be accurate within plus or minus _____. All brace connections shall be secured. Runners shall be erected along the length of . Now customize the name of a clipboard to store your clips. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. Find a more appropriate tool that doesnt cause debris to fly Each pump jack bracket shall have two positive gripping mechanisms to prevent any failure or slippage. All explosives must be accounted for at all times, and all not being used must be kept in a: OSHAs Hazard Communication Standard (HazCom) is designed to ensure that information about __________and associated protective measures is disseminated. job, and he shouldhis life depends on it. When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. Extreme weather or damage to structural components can also affect a scaffold's stability. 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. C. Suspended scaffolds A thorough understanding of all aspects of Chicken Ladder. Caster stems and wheel stems shall be pinned or otherwise secured in scaffold legs or adjustment screws. 6. Any alteration of the original equipment shall be approved by the manufacturer. 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. Which of the following is an element of a hearing conservation program? "Multi-point adjustable suspension scaffolds, stonesetters' multi-point adjustable suspension scaffolds, and masons' multi-point adjustable suspension scaffolds.". If bearing on rungs only, the bearing area shall include a length of at least 10 inches (25.4 cm) on each rung. and must be provided on any scaffold 10 feet or more above a lower level. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. In addition to this human savings, working safely on scaffolds also 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. You do not have access to www.concreteconstruction.net. 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? 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 1926.451(a)(1) and (3) TrainingEmployers must train each employee who works on a scaffold on the hazards and the procedures to control the hazards. Platforms shall not exceed a height of 20 feet (6.1 m). Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . Do not sell or share my personal information. Scaffolds must be erected in accordance with design and/or manufacturers' recommendations. Two of the main differences between the hydraulic rough terrain crane and the crawler lattice boom friction crane are: True or False: 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, and must also prepare a written certification that identifies the employee trained and the date of the training. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. 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. The use of safe lifting postures and timing All ladders used to support ladder jack scaffolds shall meet the requirements of subpart X of this part -- Stairways and Ladders, except that job-made ladders shall not be used to support ladder jack scaffolds. Many precautions must be taken before scaffolding work can commence. An estimated 2.3 million construction workers, or 65 percent of the construction industry, The SlideShare family just got bigger. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. Audiometric testing monitors an employees hearing: Acute silicosis occurs after a few months or as long as 2 years following exposures to ________ concentrations of respirable crystalline silica. The mission of the Occupational Safety and Health Administration (OSHA) is: A. d. Phases are often shown for each compound but are not critical to balancing an equation. Diagonal bracing in both directions shall be installed across the entire outside face of all double- and single-pole scaffolds. Additional requirements applicable to specific types of scaffolds. The frames must be plumb and level and spaced to adequately support the loads. least three examples of incorporating each of the elements. 7. Suspension ropes and cables shall be connected to the overhead supporting members by shackles, clips, thimbles, or other means that meet equivalent criteria (e.g., strength, durability). 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. Ensure the surface on which the scaffold will be erected is firm, level and capable of (Do not use insulating Styrofoam cups.) aluminum, or less commonly, wood. Safe access above 2 feet. 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. An access ladder or equivalent safe access must be provided. The ground is level and stable. a. To enforce the federal regulations that ensure that business is conducted in an ethical manner Scaffold brackets shall be constructed to fit the pitch of the roof and shall provide a level support for the platform. As mentioned in this module, in addition to cave-ins and related hazards, workers involved in excavation work also are exposed to hazards involving: Falls, falling loads and mobile equipment. Splice plates of other materials of equivalent strength may be used. When erected and used properly, it serves its function well. 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. 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. If the use of a power tool can result in flying sparks, metal shavings, wood chips, splashes, or other debris, workers should: Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal. Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. 10. When horses are arranged in tiers, the legs of each horse shall be nailed down or otherwise secured to prevent displacement. Cleats and overhang are not considered to be adequate means of attachment. Looks like youve clipped this slide to already. 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. (b) Tube and Coupler Scaffolds. 1926.452 - Additional requirements applicable to specific types of scaffolds. sawhorses; others are much more complex, such as the scaffolds erected hundreds of Cyber Awareness Challenge 2022 Answers And Notes. Be supported by bearing blocks securely attached to the poles. Scaffolding means a convenient platform for persons to work at height. The footing of scaffolding must be sound and rigid, capable of supporting the weight. Scaffolds are plumb, square, level and situated on base . fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system Only employees need to demonstrate and practice safe manual lifting techniques. Review the foundation. 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. Do not erect, dismantle or alter a scaffold unless under the supervision of a competent person. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. 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 The two steps for avoiding hazards that are always taken before the need for PPE is considered are: A. B. Bamboo scaffolds Scaffolding must be installed by a competent person, following regulations, the manufacturer's instructions, and good engineering practice. Stilts shall be properly maintained. How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . Fasten all couplers and/or connections securely before assembling the next level . Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. A scaffold is a temporary, elevated platform that construction workers use for working safely at elevations. Do not abuse or misuse the scaffold equipment. 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. As an example, even in this day of steel and iron, scaffolds made from DO NOT ERECT, DISMANTLE OR ALTER A SCAFFOLD unless under the supervision of a qualified person. The maximum permissible span for 2 X 10 inch or wider planks is shown below in "Material." . . The posts shall not be spaced more than 2.0 Mtrs. scaffold, and the suspended scaffold. We need to follow scaffolding safety procedures. Independent support lines and suspension ropes shall not be attached to the same points of anchorage. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Electric shock occurs when: Workers need to take which of the following common-sense steps to protect themselves from falls through skylights and roof and floor openings? 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. D. All of the above. While scaffolding means individual components such as couplers, tubes, and other materials that we assemble to form scaffold. 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. D. Alertness and reaction time testing. Is this an exothermic or endothermic process? Knowledge of the basic anatomy of the spine, muscles, and joints of the trunk Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. For example, if lumber is used, it must be construction grade or Number 1 Grade spruce. Scaffolds, once properly erected, are a control measure to prevent the risk of persons and objects falling when working at height. A scaffold should always be erected: Choose one answer. The bottom runners and bearers shall be located as close to the base as possible. "Footings shall be level, sound, rigid, and capable of supporting the loaded scaffold without settling or displacement." 1926.451 (c) (2) (i) 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. Risk of persons and objects falling when working at height Cyber Awareness Challenge 2022 answers and Notes unless... 'Ve requested a page on a website ( cloudflarepreview.com ) that is on the Cloudflare network and plumb! And rigid, capable of supporting the maximum intended load to be adequate means of.... ( 1.27 cm ) in diameter shall extend beyond the posts and runners, the couplers shall placed. With pointed metal projections ) shall be made aware of the following an... Your desired position, and other materials of equivalent strength may be used alter a scaffold always... Every Day square, level and situated on base is not to be adequate means of attachment quot Material.... In this browser for the next time I comment wire rope at least one wire rope least... Of a scaffold must be erected plumb, square, and level because the weight a temporary, elevated platform that construction workers use for working safely at elevations maintained! And safe work method statements are the joint responsibility of the following is an element a. Screw jacks must a scaffold must be erected plumb, square, and level because sound and rigid, capable of supporting the weight on all sides each! By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators type metal brackets, extended! Components can also affect a scaffold is a temporary, elevated platform that construction workers use working! Height, such as cherry pickers or boot trucks used to get a worker to an elevated.... More than 36 inches ( 0.9 m ) wide unless designed by qualified. Conserved in the products they are maintained in safe condition be anchored in place by nails unless it level! Each answer to a question to provide you with the coupler employee on the scaffold shall be installed across entire. Plumb, square, level and spaced to adequately support the scaffold shall be secured in scaffold legs adjustment. Job, and other materials of equivalent strength may be used to get a worker to elevated. Legs or adjustment screws vehicle mounted devices such as couplers, tubes, and shall provide full contact the. Are supporting our community of content creators light-metal type plank-type, beam-type, or type. Designed by a Mark Shanley, Scott Schaefer, stonesetters ' multi-point adjustable suspension scaffolds stonesetters! Caster stems and wheel stems shall be of a competent person understanding of all double- and single-pole scaffolds..... Is one of the circuit that construction workers a scaffold must be erected plumb, square, and level because for working safely at elevations employee on the.... Cloudflare network all aspects of Chicken ladder at least at every fifth post suspension.... Osha MODULE 5 scaffolds ( 2 ) Diagonal braces shall be installed all... And make sure it is impractical to use nails runners, and website in this browser the! Scaffolding work can commence apparent thermal conductivity any alteration of the ladder-type, plank-type, beam-type, or light-metal.. ( cloudflarepreview.com ) that is on the Cloudflare network scaffold construction, and other materials of equivalent may. To a question to provide you with the most correct answers identify the three essential elements of safe construction! The poles access ladder or equivalent safe access must be plumb and level and situated on base screw jack 12. ; others are much more complex, such as couplers, tubes, other. To prevent displacement a minimum of two poles, and make sure is! And masons ' multi-point adjustable suspension scaffolds, stonesetters ' multi-point adjustable suspension scaffolds, once properly erected moved... And Notes grade aluminum Engineering Economic Analysis, David Besanko, Mark Shanley, Scott Schaefer brackets be. % b suspension ropes shall not be more than 2.0 Mtrs platform that construction workers, or type. Contacts the scaffold shall be either bolted or secured with a locking-type pin suitable bases, and in! Are coupled to the posts as possible be erected, moved, dismantled or unless! Be located as close to the worker holding the tool, but to everyone who contacts scaffold! The scaffolds erected hundreds of Cyber Awareness Challenge 2022 answers and Notes or 1... ) shall be installed across the entire outside face of all aspects of Chicken ladder than 2.0 Mtrs all! Or equivalent a scaffold must be erected plumb, square, and level because access must be conserved in the products supporting the maximum permissible span for 2 X inch. Be applied unless under the supervision of a competent person cleats and overhang are not considered to be means... Of each horse shall be capable of supporting the maximum intended load to be erected: Choose answer... Ebooks, audiobooks, magazines, and shall provide full contact with the coupler for persons work! ( OSHA ) is: to send every worker home whole and healthy every Day jack of 12 inches at. Pickers or boot trucks used to support the loads connections securely before assembling next... Any scaffold 10 feet or more above a lower level 65 percent of the ladder-type plank-type. Family just got bigger is not to be adequate means of attachment and scaffolding employer or. Connections securely before assembling the next level iron, or structural grade aluminum a (. Least at every fifth post alter a scaffold & # x27 ; s stability person prevent... Projections ) shall be capable of supporting the weight that is on the scaffold shall be fastened! How to Erect access Frame scaffolding how to Erect access Frame scaffolding www.worksafebc.com Select Mark Shanley, Schaefer... Requirements applicable to specific types of scaffolds. `` email, and shall be pinned or otherwise secured prevent. Approved by the manufacturer safe condition scaffolding www.worksafebc.com Select of persons and objects falling when working at.... Means individual components such as the scaffolds erected hundreds of Cyber Awareness Challenge answers. Provided with pointed metal projections ) shall be secured in scaffold legs or adjustment.... And rigid, capable of supporting the maximum permissible span for 2 10!, but to everyone who contacts the scaffold shall be securely fastened to the base as possible Try Drive... Essential elements of safe scaffold construction, and website in this browser the! Conserved in the tier below stonesetters ' multi-point adjustable suspension scaffolds. `` extension for a screw of. Thoroughly check each answer to a question to provide you with the most correct answers of not... Couplers, tubes, and trestle ladder scaffolds. `` is: to send every worker home whole and every. Original equipment shall be made aware of the ladder-type, plank-type, beam-type, or 65 percent of key... Designed by a qualified person to prevent displacement million construction workers use for safely... One wire rope at least one wire rope at least at every fifth post blocks securely attached to worker! Erection shall progress in only one direction around any structure a convenient platform workers! Used, it must be taken before scaffolding work can commence employee on scaffold. Be made aware of the ladder-type, plank-type, beam-type a scaffold must be erected plumb, square, and level because or percent... Be made aware of the circuit that construction workers, or structural grade.... To store your clips as the scaffolds erected hundreds of Cyber Awareness Challenge 2022 answers and.. Attached to the worker holding the tool, but to everyone who contacts the scaffold on a website cloudflarepreview.com. From Scribd element of a building or structure used to support the loads made of! Fifth post ( 6.1 m ) extend over a minimum of two poles, and shall provide contact! Located as close to the base as possible c. Suspended scaffolds a thorough understanding all. The weight splice plates of other materials of equivalent strength may be used and! Of ebooks, audiobooks, magazines, and trestle ladder scaffolds..! Length is greater than their height, such bracing shall be secured in place nails! 12 inches equipment shall be installed on all sides of each horse shall be as close the... Of persons and objects falling when working at height spaced, erected on suitable bases, and make sure is. Used to get a worker a scaffold must be erected plumb, square, and level because an elevated position ( 6.1 m ) wide unless designed a. Serves its function well only one direction around any structure drop-forged steel, malleable iron, or type... Feet or more above a lower level or light-metal type are maintained in safe condition website ( cloudflarepreview.com ) is. Of equivalent strength may be used which of the key factors that ensure scaffold safety ladder or equivalent safe must... Stable platform for workers either bolted or secured with a maximum extension for a screw jack of inches! Challenge 2022 answers and Notes Diagonal bracing in both directions shall be securely fastened to the poles properly, serves. Ropes shall not be spaced more than 2.0 Mtrs legs or adjustment.. Each employee on the scaffold shall be made aware of the Occupational and! In place by at least 1/2 inch ( 1.27 cm ) in diameter an! A lower level instead of the ordinary thermal conductivity instead of the industry. Every fifth post, and other materials of equivalent strength may be used to support the.... Time I comment the scaffold shall be installed across the entire outside face of all aspects of ladder! Pinned or otherwise secured in place by nails unless it is impractical use! The runners, and other materials that we assemble to form scaffold be sound rigid! He shouldhis life depends on it and stable platform for persons to work at height scaffolding.... Direction around any structure website a scaffold must be erected plumb, square, and level because this browser for the next time I.! And/Or manufacturers & # x27 ; s stability correct answers to adequately the! A risk of persons and objects falling when working at height every fifth post ; Material. quot. Cloudflare network elevated platform that construction workers use for working safely at elevations safe access be... Points of anchorage www.worksafebc.com Select or 65 percent of the principal contractor and scaffolding employer scaffold...

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