Asbestos Project Monitor Questions and Answers 2024 100% Accurate

Asbestos Project Monitor Questions and Answers 2024 100% Accurate Name the two classifications of asbestos fibers Serpentine and Amphibole Of the six types of asbestos fibers, which are the two most common? Chrysotile and Amosite Which type of asbestos is the most difficult to keep wet? Amosite What is asbestosis? Scarring of the lung tissue and alveoli What is mesothelioma? Abnormal, uncontrolled growth (pleural and peritoneal membranes). What is lung cancer? Abnormal, uncontrolled cell growth of the lungs. What are pleural plaques? Smooth, white raised irregular areas of fibrous collagen tissue that develop on the pleura and become calcified. Not considered pre-malignant. Hyaline material. What is a latency period? Time between exposure and onset of symptoms. Acute, intermediate, chronic. Asbestos latency is usually 10-20+ years. What is the relationship between smoking and asbestos exposure? Synergistic. It is 50-90x increased risk factor. What does NESHAP stand for? National Emission Standard for Hazardous Air Pollutants. What is the purpose of the NESHAP regulation? No visible emissions Which regulatory agency enforces NESHAP? EPA What does AHERA stand for? Asbestos Hazard Emergency Response What is the purpose of the AHERA regulation? Regulate asbestos in school buildings (public and private non-profit K-12 schools) Which regulatory agency enforces AHERA? EPA What does OSHA stand for? Occupational Safety and Health Administration What is OSHA's purpose? To protect the employee/worker. What is the PEL (acronym)? Permissible Exposure Limit What number is associated with the excursion limit (EL)? 1.0 f/cc What is the 8-hour TWA for PEL? 0.1 f/cc What is the standard for asbestos clearance? 0.01 f/cc Does OSHA have a clearance limit requirement for containments? No, AHERA and individual states do. Name the five asbestos control techniques. Removal, encapsulation, enclosure, repair, and O&M Explain the removal technique. Taking away the hazardous material Explain the encapsulation technique. Covering with a liquid barrier that hardens. What are the two types of encapsulation techniques? Bridging and Penetration Explain the enclosure technique. sealing it behind a solid barrier (6-sided) Explain the repair technique. returning something to an intact or undamaged position (must repair prior to enclosure or encapsulation) Explain the operations and maintenance technique? (O&M) system of practices and procedures designed to keep asbestos in an intact position. How far should the poly overlap on the floors and walls? 12 inches What is the order of the decon from the work area out? Equipment room (dirty room), air lock, shower room, air lock, clean room Massachusetts allows exceptions to poly covering if: Glovebags are used, for surfaces that are being abated, and surfaces that are impervious. Walls should have at least ___layer(s) of ____ mil poly on them. 1 layer of 4 mil poly Floors should have ____ layer(s) of ____ mil poly on them. 2 layers of 6 mil poly Ceilings should have ____ layer(s) of ____mil poly on them. 2 layers of 4 mil poly HVAC systems should have ___ layer(s) of ___mil poly on them. 2 layers of 6 mil poly AND be shut off. If glovebags are used, what covering does the floor need to have? 1 layer of 6 mil poly. How often should air be changed inside containment? 4 times per hour or every 15 minutes What are the advantages of using a Negative Air Pressure Enclosure? 1. Contains fibers 2. Lowers concentration 3. Improve final cleanup 4. Increase worker comfort by moving air and decreasing humidity How do you determine the number of negative air machines needed? (L x W x H)/ (15 x MC) Where do you put the negative air machines? Furthest from the decon unit What are the reasons we use pre-filters? To protect the more expensive HEPA filter. What are two advantages of wet removal? 1. keeps fibers down 2. aids in cleaning What is the most used method of ceiling removal? Wet, scrape, clean What are two ways to remove pipe insulation? 1. Glove bag 2. Full containment What are the four types of respirators? 1. Air purifying 2. Powered Air Purifying 3. Supplied Air 4. Self-Contained breathing apparatus What are the two types of fit testing? Qualitative (QLFT) and Quantitative (QNFT) What are the four types of challenge agents used for qualitative fit tests? 1. Isoamyl acetate (IAA, smells like bananas) 2. Saccharin 3. Bitrex 4. Irritant smoke What is the most important aspect of the respirator? How well it fits you What is the minimum level of oxygen required for breathing? 19.5%