Looks like youve clipped this slide to already. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. Scaffolding means a convenient platform for persons to work at height. There are many other scaffolds in use as well, each with advantages and Suspension scaffold rigging must at least 6 times the intended load. Make sure the scaffold is stable. Bearers shall extend beyond the posts and runners, and shall provide full contact with the coupler. C. Suspended scaffolds 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. Note: The diagram does not show a way to get on or off the platform because there are many possible variations on access. Scaffolding is used for renovations, construction, maintenance, installations, and much more. 1. 6, 1979, as amended at 55 FR 47687, Nov. 14, 1990; 61 FR 46025, Aug. 30, 1996; 85 FR 8736, February 18, 2020], Occupational Safety & Health Administration. Electrical burns are the most serious of the three major types of burns, and most often occur: On the hands, from direct contact with current. Move the scaffold into your desired position, and make sure it is level and secure. Scaffolding must not be placed on unstable objects, such as bricks or blocks. Crawling boards shall extend from the roof peak to the eaves when used in connection with roof construction, repair, or maintenance. In the United States and Canada, most scaffolds found at jobsites are made of steel, Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. In addition to the applicable requirements of 1926.451, the following requirements apply to the specific types of scaffolds indicated. 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. Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. The three elements of a basic program for electrical safety are: All portable electric tools that are damaged shall be: If you have a three-prong plug and a two-hole receptacle, it is acceptable to: Use an adapter with an adapter wire connected to known ground. Knowing Correct answer Special care and training incentives Because there is always the chance that the wheel wasnt sound and could disintegrate or explode. 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. 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. Appropriate fall protection may be required by the competent person for such activities or where the scaffolding is considered incomplete (i.e. 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 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. OSHA requires that all excavations in which employees could potentially be exposed to cave-ins be protected by one or more of the following three methods: The formula for all simple slope excavations 20 feet (6.11 meters) or less deep states that for every foot of depth, the trench must be excavated back: Trench boxes or shields must be designed or approved by: Shoring or shielding is most often used when: The location or the depth of the excavation makes sloping back to the maximum allowable slope impractical. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. c. The Law of Conservation of Matter must be followed. Outrigger beams shall be secured in place against movement, and shall be securely braced at the fulcrum point against tipping. 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. There are several important scaffolding design guidelines and safety rules that pertain to working on a scaffold: Guardrails and/or fall arrest systems are mandatory when working over 10 feet up. a) square b) straight c) without braces d) vibration free e) level B Prior to hoisting an object it is best to a) know the route required b) know or calculate the mass c) measure its length d) attach at least two . Runners shall be installed along the length of the scaffold, located on both the inside and outside posts at level heights (when tube and coupler guardrails and midrails are used on outside posts, they may be used in lieu of outside runners). When poles are made of wood, the pole lumber shall be straight-grained, free of shakes, large loose or dead knots, and other defects which might impair strength. The bottom runners and bearers shall be located as close to the base as possible. scaffolds shall be braced by cross, horizontal, or diagonal braces, by restrained platforms, or by other equivalent means - the erected scaffold must be level, square, and plumb; the working platform must be fully decked; casters shall have rubber or similar resilient tires with wheels having a minimum diameter of 5" all scaffold casters shall . ", "Step, platform, and trestle ladder scaffolds. "Bricklayers' square scaffolds (squares). ERECTED SCAFFOLDS SHOULD BE CONTINUALLY INSPECTED by users to be sure that they are maintained in safe condition. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. Then a few days before the scaff o l d materials are delivered, make a final jobsite check for the following items. This scaffold is simply a rope attached to a harness with an assembly like a boatswains chair for the worker to sit in. When the bearers are coupled to the runners, the couplers shall be as close to the posts as possible. Scaffolds shall be stabilized to prevent tipping during movement. 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. what to do and when to do it can save lives. Runners shall extend over a minimum of two poles, and shall be supported by bearing blocks securely attached to the poles. Cloudflare is currently unable to resolve your requested domain. (Hold the cups up to your cheeks to tell.) Platform units shall be securely attached to the needle beams by bolts or equivalent means. Mechanical demolition refers to demolition using equipment like: A. Wrecking balls or jackhammers Using cranes to hoist material can have serious consequences if the process is not performed properly. The footing of scaffolding must be sound and rigid, capable of supporting the weight. In general, head protection should do which of the following? DO NOT ABUSE OR MISUSE THE SCAFFOLD EQUIPMENT. Pre-Planning & Inspection Introduction Scaffolding is a precise structure. 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. Cleats and overhang are not considered to be adequate means of attachment. Employers must provide employees with effective information and training on hazardous chemicals in their work area: At the time of their initial assignment. least three examples of incorporating each of the elements. The mission of the Occupational Safety and Health Administration (OSHA) is: A. 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 mission of the Occupational Safety and Health Administration (OSHA) is: To send every worker home whole and healthy every day. common. 4. Many precautions must be taken before scaffolding work can commence. Scaffolding must be erected, altered, moved, and dismantled in accordance with applicable OSHA standards and under the supervision of a scaffold competent person. Two-point scaffolds shall not be bridged or otherwise connected one to another during raising and lowering operations unless the bridge connections are articulated (attached), and the hoists properly sized. Add lukewarm water to two plastic cups. The poles, legs, or uprights of scaffolds must be plumb, and securely and rigidly braced to prevent swaying and displacement. Add several tablespoons of table salt to one cup and stir. All planking must be Scaffold Grades, or equivalent, as recognized by approved grading rules for the species of wood used. Scaffold platforms shall not be placed any higher than the second highest rung or step of the ladder supporting the platform. Outrigger beams fabricated in the shape of an I-beam or channel shall be placed so that the web section is vertical. Platforms shall not be more than 36 inches (0.9 m) wide unless designed by a qualified person to prevent unstable conditions. 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