CA State Lead Supervisor Exam 2022 with complete solution The Consumer Product Safety Commission restricts the amount of lead in coatings to what? Answer- 90ppm .009% As of 2012 The Consumer Product Safety Commussion restricts the amount of lead in coatings on what surfaces? Answer- Residential Structures Publicly accessed commercial buildings Recreational areas Toys Play-ground equipment Which homes have a 86% chance of containing lead based paint according to EPA?Answer- Homes built before 1940 Which homes have an 66% chance of containing lead based paint according to EPA?Answer- Homes built between 1940 & 1959 Which homes have a 25% chance of containing lead based paint according to EPA?Answer- Homes built between 1960 & 1978 1g is equal to what? Answer- 1,000 mg 1,000,000ug What percentage is 6,000ppm? Answer- 0.6% 10ppm is equal to what percent? Answer- 0.001 What is the CDC level of concern for children? Answer- 5ug/dl How much lead do pregnant women & children absorb versus adults? Answer- Preg women & children 50% Adults 10-15% Where is most the lead absorbed by the body stored? Answer- In the bones Childrens reaction to lead at 100 ug/dl Answer- Seizures, brain swelling, death 1 / 2
Childrens reaction to lead at 10 ug/dl Answer- Slight IQ loss, hearing & growth problems According to Title 17, who can write abatement plans for lead? Answer- Supervisor, project designer, project monitor According to Title 17, who can perform clearance inspections for lead? Answer- Project monitor Inspector/assessor According to Title 17, who can perform risk assessments for lead? Answer- Inspector/assessor Lead standard requirements at the exposure limit of 30 ug/m3 (air) Cal/OSHA Answer- Medical surveillance Training Hand washing facilities Lead standard requirements at the exposure limit of 50 ug/m3 (air) Cal/OSHA Answer- Respirators Showers PPE Hand washing facilities Warning signs Change areas Eating facilities How do you calculate the PEL for employees working longer than 8 hours in a day?Answer- 400 divided by # of hours worked = PEL What activities are included in Class 1 trigger task? Answer- Manual demo Manual scraping Manual sanding Heat gun use Power took cleaning w/dust collection systems Spray painting w/lead paint What is the minimum protection required in Trigger task class 1? Answer- 1/2 face respirator What activities are included in Class 2 trigger task? Answer- Using Lead mortar Lead burning Rivet busting Power tool cleaning without dust collection system Abrasive blasting enclosure movement and removal
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