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). 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. 15% c. 20% d. 25% 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 . Landings for the stair access are assembled within the 1.27m square bays at each end of the stair stringer bays using cuplock 1.27m . Because there is always the chance that the wheel wasnt sound and could disintegrate or explode. True or False: Only personnel instructed in the requirements of the standard and the task to be performed along with their tools, equipment and materials needed for the job are allowed on the 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. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. 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. Cleats and overhang are not considered to be adequate means of attachment. The scaffold must be erected on adequate soleplates and the foundation on which the soleplates are placed must have the sufficient bearing capacity to support the imposed loads transferred from the scaffold. Where uplift can occur which would displace scaffold end frames or panels, the frames or panels shall be locked together vertically by pins or equivalent means. Manual force used to move the scaffold shall be applied as close to the base as practicable, but not more than 5 feet (1.5 m) above the supporting surface. All diagonal . The mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. 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. . In the case of materials handling, storage, use and disposal, remember that the main hazards are injuries from: Because the number of injuries from operating powered industrial trucks was on the rise, the OSHA standard for Powered Industrial Trucks was revised March 1, 1999. The SlideShare family just got bigger. 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. which of the following statements is false? Cyber Awareness Challenge 2022 Answers And Notes. The ladder must extend 1 m (3 ft.) above the landing. Wooden bracket-form scaffolds shall be an integral part of the form panel. Engineering and Administrative Controls. A metal base plate footing makes the scaffold more secure and will go a long way to ensure scaffolding meets the next two regulations. Each pump jack bracket shall have two positive gripping mechanisms to prevent any failure or slippage. Platforms shall be secured to the brackets in a manner that will prevent the separation of the platforms from the brackets and the movement of the platforms or the brackets on a completed scaffold. 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. Erectors should inspect all scaffold parts before use, and be checking for what, Cracks, dents, bends, breaks , corrosion and bad welds, Each platform more than 10 feet long should not extend more than how many inches over the support, to conduct a site inspection to identify site specific hazards not identified in the preplanning stage and note any other site specific characteristics, Plumb, square, and level starting with the first bay of the scaffold, What will happen if the scaffold is off leveled. Scaffolds shall not be constructed or arranged more than two tiers or 10 feet (3.0 m) in height, whichever is less. We need to follow scaffolding safety procedures. "Bricklayers' square scaffolds (squares). Scaffolds shall be braced by cross, horizontal, or diagonal braces, or combination thereof, to prevent racking or collapse of the scaffold and to secure vertical members together laterally so as to automatically square and align the vertical members. Why do we characterize the heat conduction ability of insulators in terms of their apparent thermal conductivity instead of the ordinary thermal conductivity? Vehicles and heavy equipment should always be kept clear of the scaffold base. Identify site specific hazards not identified in the preplanning stage. Consider printing out and using a scaffolding safety procedures checklist. 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. Cloudflare is currently unable to resolve your requested domain. Scaffolds must be constructed of suitable structural materials. The scaffold assembly must be designed to comply with Local, State and Federal safety requirements. You've requested a page on a website (cloudflarepreview.com) that is on the Cloudflare network. 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. Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. Platforms shall not exceed a height of 20 feet (6.1 m). Click here to review the details. Your lines should be perfectly vertical (plumb) and horizontal (level), and your corners should be exactly 90 degrees (square). Select the equipment you need and place it near the work area. scaffold falls, 4,500 injuries and 50 deaths from scaffold-related accidents would be The ground is level and stable. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. 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. Many precautions must be taken before scaffolding work can commence. 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. 2. A good time to perform these inspections is at the start of the workday to ensure the area is clear for that day's shift. Identify the three essential elements of safe scaffold construction, and give at Scaffolding is a temporary structure that provides support for workers, plants, and materials used in building, construction, maintenance, repair, and demolition work. Name the three types of scaffolds and describe their main characteristics OSHA promulgated the Final Rule for Powered Industrial Truck Operator Training [29 CFR 1910.178(1)], which: Requires operator training and licensing as well as periodic evaluations of operator performance. 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. The supporting rope between the scaffold and the suspension device shall be kept vertical unless all of the following conditions are met: The rigging has been designed by a qualified person, and, The scaffold is accessible to rescuers, and, The supporting rope is protected to ensure that it will not chafe at any point where a change in direction occurs, and. Do not sell or share my personal information. 25. 3. Hardware should be included to fasten the planks into place. that construction workers use for working safely at elevations. 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. Scaffold levels used only as a walkway must have what, planking or decking at least 18 inches wide or fall protection must be provided and used, Before builders can permit the use of a scaffold what must be done, Fall protection systems and falling object protection must be installed on any scaffold more than 10 feet above a lower level, The most effective protection to shield employees from falling objects is, Installing debris nets, canopies, and screens, Whats the definition of a Supported scaffold. Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . All brace connections shall be secured. Be supported by bearing blocks securely attached to the poles. Not tied. Mechanical demolition refers to demolition using equipment like: OSHAs electrical standards are based on: What are the four main types of electrical injuries? uses. ( 1) Scaffolds made of wood shall be reinforced with gussets on both sides of each corner. 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