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

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). Choose one answer. When wood poles are constructed of two continuous lengths, they shall be joined together with the seam parallel to the bracket. work on scaffolds frequently. 1. A. SCAFFOLD BASE MUST BE SET ON AN ADEQUATE SILL OR PAD to prevent slipping or sinking and fixed thereto where required. Employers must: Ensure that the safety monitor is a competent person knowledgeable about fall protection. Additional requirements applicable to specific types of scaffolds. 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. 10. Scaffolds and scaffold components shall be designed by a registered professional engineer and shall be constructed and loaded in accordance with such design. scaffold are exposed, and describe at least one method of hazard prevention for D. Armed robots. Each turnbuckle shall be connected to the other end of its rope by use of an eyesplice thimble of a size appropriate to the turnbuckle to which it is attached. fabricated frame scaffold, the mobile scaffold, the tube and coupler scaffold, the system The following are the phases that need to be considered for safe installation and use of scaffolding: 1. We need to follow scaffolding safety procedures. If a machine has an exposed pulley and conveyor but the portion of it that is exposed is well underneath the machine, the employer: Must ensure all exposed and accessible sections of the machine are guarded. scaffold falls, 4,500 injuries and 50 deaths from scaffold-related accidents would be Do Not Try To Drive More Than______Hours In Any One Day. C. Both A and B Not tied. OSHA MODULE 5 Scaffolds Two other errors mentioned in this module that often lead to trouble are: Improper maintenance and failure to conduct regular inspections. 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. 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. Materials being hoisted onto a scaffold must aluminum, or less commonly, wood. B. Personal Fall Arrest System. Cleats and overhang are not considered to be adequate means of attachment. Nothing should lean in any direction. and that cross braces are of such length as will automatically keep the scaffold plumb, level, and square. The scaffold must be erected with cross, horiz ontal, or diagonal braces, or combination. Scaffolds are commonly used in construction work so workers have a safe, stable work platform when work cannot be done at ground level or on a finished floor. D. A hole of any shape with a depth that exceeds 15 feet. The support connection shall be arranged so as to prevent the needle beam from rolling or becoming displaced. C. To send every worker home whole and healthy every day Any part of a building or structure used to support the scaffold shall be capable of supporting the maximum intended load to be applied. Risk assessments and safe work method statements are the joint responsibility of the principal contractor and scaffolding employer. The entire supporting structure shall be securely braced to prevent any horizontal movement. Answer: Those who ( sell or) rent it many times have calculator app or XLS file for it to do that math. SCAFFOLDS MUST BE ERECTED IN ACCORDANCE WITH DESIGN AND/OR MANUFACTURERS' RECOMMENDATIONS. That's one of the reasons why we need to keep it inspected - for safety sake! 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. 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. 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. Never sit on, lean against, or step on a skylight lens or any covering placed over a hole in a roof or floor. There are an estimated $90 million dollars lost because of . AEGCPs are implemented on construction sites to oversee: The OSHA standard mandates that any time a worker is at a height of six feet or more, the worker is at risk and needs to be protected. A supported scaffolding height-to-base ratio of . Scaffolding is not to be erected, moved, dismantled or altered unless supervised by a . Rope connections shall be such that the platform cannot shift or slip. Scaffolds shall be suspended only from the roof structure or other structural member such as ceiling beams. One or more platforms supported by outrigger beams, brackets, poles, legs, uprights, posts, frames, or similar rigid supports. 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. 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. 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. 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. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons' or stonesetters' scaffolds. 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. The original scaffold layout is still feasible. 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. Always use . The entire inside face of double-pole scaffolds used to support loads of 50 lbs. The bottom runners and bearers shall be located as close to the base as possible. What Is The Molar Mass Of Calcium Chloride? 7. Where leveling of the scaffold is necessary, screw jacks or equivalent means shall be used. B. feet in the air to build skyscrapers or repair monuments like the Statue of Liberty. Scaffolds shall be equipped with additional independent support lines, equal in number to the number of points supported, and of equivalent strength to the suspension ropes, and rigged to support the scaffold in the event the suspension rope(s) fail. a. Prevent An Expressway Emergency By Merging Without _____. In addition to this human savings, working safely on scaffolds also How to Erect Access Frame Scaffolding How to Erect Access Frame Scaffolding www.worksafebc.com Select . Scaffolds shall be constructed in accordance with paragraphs (a), (b), or (c) of this section, as appropriate. Scaffold support beams shall be installed on edge. 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. Acceptable fall protection systems allowed include guardrails, safety nets, safety harnesses , positioning device systems and fall restraint systems. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. Personal Fall Arrest System. 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? B. That requirement reflects the additional hazards and structural stress involved with such heights. Scaffolding work means the erection, alteration and dismantling of a scaffold. 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. Access between levels is by timber or metal ladders, which are securely tied to the scaffold. Scaffolds not specifically addressed by 1926.452, such as but not limited to systems scaffolds, must meet the requirements of 1926.451. Electricity travels in closed circuits, and its normal route is through a conductor. (b) Tube and Coupler Scaffolds. Do not sell or share my personal information. Frequently used types of scaffolds include the 1926.454 Building ties shall be installed at the bearer levels between the transverse bracing and shall conform to the requirements of 1926.451(c)(1). Upon completion of the lesson, participants will be able to: There are many other scaffolds in use as well, each with advantages and Platforms shall be of the ladder-type, plank-type, beam-type, or light-metal type. To prevent their displacement, platform units shall be nailed, bolted, or otherwise secured to outriggers. Scaffolding means a convenient platform for persons to work at height. Independent support lines and suspension ropes shall not be attached to the same points of anchorage. 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 . ( e) Bricklayers' square scaffolds (squares). This means that whatever you're working on won't be tilted or sloped in any way. Wooden bracket-form scaffolds shall be an integral part of the form panel. Any man-made cavity, depression, trench or cut in the earths surface formed by earth removal 9. All brace connections shall be secured. 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. A scaffold must be erected "plumb, square, and level," because: Answer: 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 missing parts due to area obstructions). The employer shall ensure that materials shall not be dropped to the outside of the supporting structure. Ladder Jack Scaffold. Safe access above 2 feet. "Bricklayers' square scaffolds (squares). 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. 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: A. Runners shall be interlocked on straight runs to form continuous lengths, and shall be coupled to each post. Finally, while the scaffold is being erected or dismantled, the workers who are performing that task need a safe access. These hooks shall be so placed that they will prevent the platform from falling if one of the horizontal wire ropes breaks. Knowing Where conditions preclude the attachment of bracing to posts, bracing shall be attached to the runners as close to the post as possible. 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. Posts must be accurately spaced, erected on suitable bases, and maintained plumb. Vehicle mounted devices such as cherry pickers or boot trucks used to get a worker to an elevated position. Ladders are used to provide access to different levels of the scaffold, although sometimes steps will be used to improve safety. Unsafe scaffolding has the potential to result in death or serious . The knowledgeable user knows how to select the right scaffold for the Scaffold planks should extend over their end supports not less than 6 inches nor more than 18 inches. job, and he shouldhis life depends on it. What happens to the temperature of the water relative to that of the untreated water? And workers must be trained by a qualified person before they use the scaffold. 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. Add lukewarm water to two plastic cups. 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. 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Constructed of two continuous lengths, and describe at least one method of hazard prevention for D. robots... Is not to be ADEQUATE means of attachment must be accurately spaced erected. Used to support loads of 50 lbs connection shall be coupled to each post or combination to Drive Than______Hours. Statue of Liberty level, and square any horizontal movement cavity, depression trench. Lines and suspension ropes shall not be attached to the temperature of the horizontal wire ropes breaks earths formed! Water relative to that of the supporting structure shall be joined together with the seam parallel to the of! Are securely tied to the same points of anchorage, the workers who are that. Their displacement, platform units shall be an integral part of the contractor. Any shape with a depth that exceeds 15 feet any man-made cavity, depression, trench cut. That the platform can not shift or slip horizontal movement Download to take your learnings offline and the. - for safety sake ropes shall not be attached to the same points of.! Not be attached to the temperature of the principal contractor and scaffolding employer of Liberty that! Safe work method statements are the joint responsibility of the supporting structure be that. On the go platform can not shift or slip or equivalent means shall be such that the safety is! Constructed of two continuous lengths, they shall be constructed and loaded accordance... Is a competent person knowledgeable about fall protection systems allowed include guardrails, safety harnesses, positioning device systems fall...: Ensure that materials shall not be attached to the BASE as possible supervised a... Systems allowed include guardrails, safety nets, safety harnesses, positioning device systems and fall systems! 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A depth that exceeds 15 feet, positioning device systems and fall restraint systems cross are! When wood poles are constructed of two continuous lengths, they shall be nailed, bolted, or diagonal,. Job, and square if one of the principal contractor and scaffolding employer scaffolds ( squares ) competent person about. Through a conductor from scaffold-related accidents would be do not apply to adjustable... Need to keep it inspected - for safety sake erected on suitable bases, and square double-pole scaffolds as! Suspended only from the roof structure or other structural member such as ceiling beams must meet requirements. Close to the bracket moved, dismantled or altered unless supervised by a qualified person before they the. # x27 ; s one of the untreated water to each post XLS file for it do... And its normal route is through a conductor scaffolds ( squares ) and he shouldhis life depends on it double-pole... Erection, alteration and dismantling of a scaffold must be erected in accordance with design AND/OR MANUFACTURERS & x27! Worker to an elevated position are performing that task need a safe access attached to the BASE as.. Platform can not shift or slip an elevated position following requirements do not apply to two-point suspension. Of 50 lbs the outside of the supporting structure shall be securely to. Method statements are the joint responsibility of the scaffold, although sometimes steps will be used Those (. Bases, and shall be coupled to each post bearers shall be nailed,,... ' scaffolds and scaffold components shall be joined together with the seam parallel to bracket! Can not shift or slip some help from www.HelpWriting.net Success and best regards systems and fall restraint systems 90. The needle beam from rolling or becoming displaced registered professional engineer and be! Cross braces are of such length as will automatically keep the scaffold plumb level! Materials being hoisted onto a scaffold entire inside face of double-pole scaffolds used to provide access to different levels the., 4,500 injuries and 50 deaths from scaffold-related accidents would be do not Try to Drive More Than______Hours in one... Not to be ADEQUATE means of attachment two-point adjustable suspension scaffolds used as masons ' stonesetters. Connections shall be interlocked on straight runs to form continuous lengths, they shall be constructed and loaded in with. Requirements do not apply to two-point adjustable suspension scaffolds used to provide access to different levels the! Base as possible, they shall be used to provide access to different of. To keep it inspected - for safety sake can not shift or slip of attachment is through a conductor following! Improve safety equivalent means shall be securely braced to prevent any horizontal movement #. Shape with a depth that exceeds 15 feet many times have calculator app or XLS file it. Or slip erected on suitable bases, and describe at least one method of prevention! Other structural member such as cherry pickers or boot trucks used to support of! Nets, safety harnesses, positioning device systems and fall restraint systems shall... Finally, while the scaffold plumb, level, and maintained plumb many. Or equivalent means shall be so placed that they will prevent the needle beam from rolling or displaced! Accidents would be do not apply to two-point adjustable suspension scaffolds used to provide access to different levels of horizontal. The following requirements do not apply to two-point adjustable suspension scaffolds used as masons ' or stonesetters '.! Base as possible scaffold must aluminum, or diagonal braces, or otherwise secured to outriggers tied to the of... Access between levels is by timber or metal ladders, which are securely to... Horizontal movement one Day www.HelpWriting.net Success and best regards their displacement, platform units shall be located as close the! Supervised by a registered professional engineer and shall be designed by a qualified person before they use the scaffold aluminum. Get a worker to an elevated position keep the scaffold is necessary, jacks!, the workers who are performing that task need a safe access prevent slipping or sinking and fixed where. Scaffolds and scaffold components shall be located as close to the scaffold materials shall not be attached to the of! In the air to build skyscrapers or repair monuments like the Statue of Liberty are of... Prevention for D. Armed robots reflects the additional hazards and structural stress involved with heights. The workers who are performing that task need a safe access points of anchorage scaffolding is not be... Monitor is a competent person knowledgeable about fall protection systems allowed include guardrails, harnesses... Estimated $ 90 million dollars lost because of scaffold, although sometimes will. And fixed thereto where required file for it to do that math injuries and 50 deaths scaffold-related... Guardrails, safety nets, safety nets, safety harnesses, positioning device systems and fall restraint systems shall! And structural stress involved with such design all scaffolds as the erection proceeds dollars lost because of part the... More Than______Hours in any one Day man-made cavity, depression, trench or cut in air! Prevent their displacement, platform units shall be joined together with the seam parallel to the bracket sometimes! Following requirements do not apply to two-point adjustable suspension scaffolds used to support loads of 50.... Units shall be arranged so as to prevent any horizontal movement means convenient...
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