Provide guards on power tools and other equipment with moving parts. You should have head protection if which of the following apply to your job? Do Not Try To Drive More Than______Hours In Any One Day. 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. 10. The platform shall be securely fastened to hangers (stirrups) by U-bolts or by other means which satisfy the requirements of 1926.451(a). . The scaffold must be erected and used in accordance with OSHA regulations. Engineering and Administrative Controls. Scaffolds must be erected, dismantled, or moved only by properly trained workers. Note: Except where . Prevent An Expressway Emergency By Merging Without _____. Tube and coupler scaffolds over 125 feet in height shall be designed by a registered professional engineer, and shall be constructed and loaded in accordance with such design. This scaffold is simply a rope attached to a harness with an assembly like a boatswains chair for the worker to sit in. Place the planks. The posts shall not be spaced more than 2.0 Mtrs. Crawling boards shall be secured to the roof by ridge hooks or by means that meet equivalent criteria (e.g., strength and durability). Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor 5% b. Yet, because of the nature of where and how it is used, scaffolding can present many potential hazards. All brace connections must be secured. The bottom runners and bearers shall be located as close to the base as possible. 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. The circuit becomes part of the conductor Each bracket, except those for wooden bracket-form scaffolds, shall be attached to the supporting formwork or structure by means of one or more of the following: nails; a metal stud attachment device; welding; hooking over a secured structural supporting member, with the form wales either bolted to the form or secured by snap ties or tie bolts extending through the form and securely anchored; or, for carpenters' bracket scaffolds only, by a bolt extending through to the opposite side of the structure's wall. 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. Any scaffold that is more than 125 feet in height above the base must be designed by a registered professional engineer. B. Bamboo scaffolds To enforce the federal regulations that ensure that business is conducted in an ethical manner Cyber Awareness Challenge 2022 Answers And Notes. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor. Move the personnel platform slowly and cautiously and have a rotation-resistant rope with a safety factor of 10 [3] Lift the planks through the scaffold bars and into place. Scaffold is not level because it was erected without base plates on an uneven surface. . Wire ropes shall be continuous and without splices between anchors. C. Suspended scaffolds The scaffold must be plumb, level and squared wi th all brace connections securely fastened. c. The Law of Conservation of Matter must be followed. Your IP: 143.244.138.144, Requested URL: www.concreteconstruction.net/_view-object?id=00000154-24cb-db06-a1fe-77cb16a60000, User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36. Prior to starting all demolition operations, OSHA 1926.850 (a) requires that: One of the most important elements of the pre-job planning is: Proper equipment for prompt transportation of an injured worker, as well as a communication system to contact any necessary ambulance service, must be available: A structural material with tensioned steel strands embedded inside, which compress the concrete and give it extra strength. common. 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. 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. Bearers must extend a minimum of 3 inches over the outside edge of runners. In 1996, when OSHA issued the revised Scaffold Standard 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. e) must be made of pipe E WCB Regulations state: Tubular and similar type section scaffolding shall be erected plumb and _____. disadvantages. Every degree that the scaffold is off leveled will be magnified as the scaffold is raised in height. U-bolt wire rope clips shall not be used on any wire rope used to secure brackets or to serve as an anchor for personal fall arrest systems. When only a part of the width of the metal scaffold frame conforms to ladder spacing, then these frames must be erected in a manner that makes a continuous ladder bottom to top, with ladder sides of the frames in a vertical line. The frames must be plumb and level and spaced to adequately support the loads. Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. Forklifts, trucks, similar motor vehicles or add-on motors shall not be used to propel scaffolds unless the scaffold is designed for such propulsion systems. No handhold available. 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. Electric shock occurs when: A. Not tied. When horses are arranged in tiers, each horse shall be placed directly over the horse in the tier below. B. Scaffolding is used for renovations, construction, maintenance, installations, and much more. 1926.454 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 . When an employee is using stilts on a large area scaffold where a guardrail system is used to provide fall protection, the guardrail system shall be increased in height by an amount equal to the height of the stilts being used by the employee. Which of the following is an element of a hearing conservation program? fold must be erected "plumb, square, and level," starting with the first bay because every degree that the scaffold is off level at the lower level is magnified as it is raised in height. Other common components are scaffold boards and edge protection. Which of these is required if the workers body, hands or clothing may come into contact with moving parts? Why? 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. Just a few example you can find fast on the interwebs, NFI . Safety footwear has to meet minimum compression and impact performance standards, set by: Gloves that are chemically resistant are usually made from: True or False: Full-body protection is sometimes made from materials such as duck, paper-like fiber, or rubberized fabrics, depending upon the hazard. The fulcrum point of outrigger beams shall rest on secure bearings at least 6 inches (15.2 cm) in each horizontal dimension. We need to follow scaffolding safety procedures. Move the scaffold into your desired position, and make sure it is level and secure. 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. The footing of scaffolding must be sound and rigid, capable of supporting the weight. C. Explosives When platforms are being moved to the next level, the existing platform shall be left undisturbed until the new bearers have been set in place and braced prior to receiving the new platforms. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. 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. Approximately 75 percent of struck-by fatalities involve: It is preferable not to drive a vehicle in reverse if you have an obstructed rear view, but if you do, make sure: Workers are most at risk from falling objects when standing or working: To prevent injury from flying debris, use safety glasses, goggles, face shields, etc., where machines or tools may cause flying particles; and always inspect tools, such as saws and lathes, to ensure that: The protective guards are in good condition and firmly attached. Plan the scaffolding setup a few weeks before the start of the project to make sure the scaffold fits the site. Materials being hoisted onto a scaffold must Folding type metal brackets, when extended for use, shall be either bolted or secured with a locking-type pin. Poles shall be secured to the structure by rigid triangular bracing or equivalent at the bottom, top, and other points as necessary. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system It appears that you have an ad-blocker running. 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 _____. 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. Scaffolds are commonly used in construction work so that workers have a safe, stable platform on which to work when work cannot be done at ground level or on a finished floor. 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