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Plumbing - OSHA Flashcards Part 3
This deck covers key OSHA regulations and safety requirements for scaffolding and aerial lifts in plumbing. It includes definitions, safety practices, and compliance standards.
What is scaffold-grade lumber?
It is wood scaffold-grade plank stamped with a special mark.
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Key Terms
Term
Definition
What is scaffold-grade lumber?
It is wood scaffold-grade plank stamped with a special mark.
What means that planks shall be in good repair?
Replace planks with reduced width, length, thickness, or strength. Never apply an opaque coating to wood planks.
What are ladder jack scaffolds?
The platform rest on brackets attached to ladders. Job-build ladders cannot be used. Use a separate ladder for access. Ladder jack scaffolds must be a...
What are horse scaffolds?
It consists of a platform supported by construction sawhorses.
How are horse scaffolds also known?
As sawhorse scaffolds. | 2. Constructed of metal are sometimes known as trestle scaffolds.
How are horse scaffolds arranged in tiers?
They can not be constructed or arranged more than 10' in height or two tiers whichever is less. Place each horse directly over the horse on the tier b...
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| Term | Definition |
|---|---|
What is scaffold-grade lumber? | It is wood scaffold-grade plank stamped with a special mark. |
What means that planks shall be in good repair? | Replace planks with reduced width, length, thickness, or strength. Never apply an opaque coating to wood planks. |
What are ladder jack scaffolds? | The platform rest on brackets attached to ladders. Job-build ladders cannot be used. Use a separate ladder for access. Ladder jack scaffolds must be at least 12" wide. The ladders supporting the ladder jacks have to be placed, fastened, or equipped with devices to prevent slipping. Scaffold platforms cannot be bridged to one another. You can not use ladder jack scaffolds at a height above 20'. |
What are horse scaffolds? | It consists of a platform supported by construction sawhorses. |
How are horse scaffolds also known? | As sawhorse scaffolds. | 2. Constructed of metal are sometimes known as trestle scaffolds. |
How are horse scaffolds arranged in tiers? | They can not be constructed or arranged more than 10' in height or two tiers whichever is less. Place each horse directly over the horse on the tier below. Nail down the legs of each horse or otherwise secure it to prevent displacement. Cross-brace each tier. |
What are window jack scaffolds? | It is a platform resting on a bracket or jack projecting through a window opening. |
How can a window jack scaffold be used? | Only for working in that window opening. | 2. You can not use window jacks to support planks between one window jack and another. |
What are trestle ladder scaffolds? | It is a platform resting directly on the rungs of step or trestle ladders. |
How is trestle ladder scaffold also known? | As a step or platform scaffold. |
How are trestle ladder scaffolds built? | The platforms on a trestle ladder scaffold can not be placed higher than the next-to-last rung or step. They can not be bridged together. All ladders used must meet requirements of Subpart X - stairways and Ladders. Job-built ladders can not be used in a trestle ladder scaffold. Ladders used to support trestle ladder scaffolds must be prevented from slipping. |
What are aerial lifts? | Vehicle-mounted elevating and rotating work platforms. |
Where is the OSHA regulation for cranes, derricks, hoists, elevators, and conveyors? | Subpart N. |
What do aerial lifts include? | Extensible boom platforms. Aerial ladders. Articulating boom platforms. Vertical towers. Any combination of these. |
What are the OSHA requirements for personnel of aerial lifts? | Users cannot exceed the manufacturer's boom and basket load limits which appear on the equipment. Only authorized persons can operate the lift. Workers must stand firmly on the floor of the lift basket. Workers cannot sit or climb on the edge of the basket or use planks, ladders, or other devices for a work position. Workers must wear a body harness and a lanyard attached to the boom or basket. Belting off to an adjacent pole, structure, or equipment when working from an aerial lift is not permitted. |
What are requirements for aerial lift controls? | A competent person must test the lift controls each day prior to use to assure they are in safe working condition. When lifts are primarily personnel carriers, they must have both platform (upper) controls and lower controls. The upper controls must be within easy reach. The lower controls must be able to override the upper controls in an emergency. |
What are requirements for aerial lifts structure? | When in use, the brakes must be set and any outriggers must be on pads or a solid surface. Before using the lift on an incline, install wheel chocks. All aerial lifts must be secured in the travel position before they are moved for travel. |
How much can a scaffold support? | They must be capable of supporting - without failure - their own weight and at least 4 times the maximum intended load. |
How is a supported scaffold capacity primarily determined? | Space between the uprights. | 2. Thickness of the planks. |
What is the maximum intended load? | The heaviest load the scaffold is designed to carry. The maximum intended load is all workers, tools, and material that may be on the scaffold at one time. |
How should we distribute loads? | Distribute loads evenly on the platform. Keep loads away from the plank center. Point load over the upright supports. |
How can we protect ourselves on scaffolds? | Don't let tools, materials, debris collect on scaffold. Never throw or drop tools, materials, or equipment. Make sure all connections are in place and tight. Do not stand on ties. Do not stand on guardrails or plank extensions. Do not overreach outside of the guardrails. Stay off scaffold during loading or unloading. Replace guardrails after loading or unloading. Use 3 point climbing. Don't hang tarps without evaluation. Get off mobile scaffold before it's moved. Never leave partially dismantled scaffolds unguarded or unlabeled. Wear the right clothing and safety gear. |
What are the training requirements for scaffolds? | Your employer must train you to recognize the hazards of the scaffold you use and to understand the hazard control procedures. |
| B. supported, suspension, aerial lifts. |
The OSHA standards for scaffolding are found in: | A. Subpart L. |
Most scaffolds use what kind of construction? | D. Beam and post. |