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The characteristic of an insulating material that makes it easy to crumble into fibers and become airborne? correct answers Friability A protective sheet metal covering? correct answers Lagging A material that maintains its strength at high temperatures? correct answers Refractory The process of using braces to ensure the integrity of a confined space, usually an excavation? correct answers Shoring A work area large enough for a person to work, but arranged in such a way that an employee must physically enter the space to perform work. Has a limited or restricted means of entry and exit. It is not designed for continuous work. correct answers Confined space The chemicals in a plant that are used can ___? correct answers Vary from one process to another. _____ and _____ insulation do not present an immediate hazard unless the cloth lagging wrapped around the outside of the insulation is damaged so that the ______ insulation is exposed to air. correct answers Asbestos pipe and boiler Asbestos For long-term work involving non-asbestos insulation, wear: _____? Why? correct answers Wear: Disposable overalls, Gloves, Shoe covers, and Head coverings. To prevent fibers from being carried away from job site. Advanced steam boilers can operate at temperatures as high as _____ degrees. correct answers 1,150 Supercritical boilers can operate at pressures as high as ______ psi. correct answers 4,500 Cutting metals inside a boiler presents an added hazard due to ____? correct answers Combustion residue fumes The weight of an object to lifted should not exceed the ______ of the lifting equipment. correct answers Safe working load The tern that means asbestos insulation is easily crumbled into fibers that become airborne is _____? correct answers Friability Grinding operations inside a boiler present an explosion hazard due to ____? correct answers Combustion gases One of the places on a boiler where asbestos may be found is ______? correct answers Door seals