LEAD IA EXAM PRACTICE |63 QUESTIONS AND ANSWERS 2023.

which federal agencies are actively involved in developing lead regulations and policies? EPA, OSHA, HUD what role does OSHA play in the prevention of lead poisoning? inspects job sites for worker safety and sets standards for worker protection Three are REQUIRED by OSHA for exposures over the lead PEL -written compliance program -respirators and protective clothing -hygiene facilities (hand-washing/showers when feasible) In CA, what regulatory agency developed a certification program for lead-related construction work? DHS T/F, the only requirement for DHS certification is that you pass the exam at the end of the DHS-approved training course False Which is the primary agency regulating lead-contaminated waster disposal? In CA, Division of Toxic Substances Control within Cal/EPA. Outside of CA, EPA. in general, before disturbing lead painted surfaces, a contractor will need to - train workers - develop a written respiratory protection program - develop a compliance program specific to the job site ______________________ must be made available to employees covered by a medical surveillance program medical examination by a physician Under OSHA, who must be in lead medical surveillance programs? persons exposed >30 days above 30 ug/m3 the XRF analyzer was selected by HUD for lead based paint testing primarily because it may be the most cost effective technique paint samples that test "inconclusive" by XRF should have confirmatory samples redone by atomic absorption analysis submissions of small amounts of substrate materials with paint samples for laboratory analysis will over and underestimate the lead concentration if results are in percent by weight to collect water samples for laboratory analysis for lead allow the water to stand in the pipes for at least 6-12 hours before collecting the sample dust vacuum sampling might be used for rough concrete and carpets atomic absorption sample results for lead in paint are reported as percent lead by weight lab methods for the analysis of lead include - inductively coupled plasma - flame atomic absorption - graphite furnace atomic absorption what is used to detect lead in paint x-ray fluorescence analyzer (XRF) HUD wipe sampling procedure requires - sample on horizontal surfaces only - is possible, sample an area of approximately 1 ft2 - submit at least one field blank with each sample new EPA requirements for clearance wipe sampling for floors, interior window sills and exterior window troughs 40, 250, 200 ug/ft2 what is the HUD definition of lead-containing paint on painted surfaces by atomic absorption laboratory analysis (AA) and XRF? lab=0.5% by weight; XRF=1.0 mg/cm2 why are field test kits such as sodium sulfide and rhodizonate controversial? they produce false +/- and require color distinctions put lead dust wipe samples into hard shelled container such as a centrifuge tube put lead paint chip samples into centrifuge tubes (if results must be expressed in mg/cm2) or soft container like plastic baggie if results may be expressed in percent by weight or ppm three steps in dust wipe sampling - measure sample area exactly - wear new gloves for every sample collected - wash hands common in-place management program for controlling lead hazards - plans to protect tenants when small repairs/maintenance projects are done that disturb lead surfaces - education of tenants about lead hazards - respirator training for some workers in-place management activities may be appropriate when - all IDed lead-based paint is intact - dust lead levels are below clearance levels - no residents have EBBL at a minimum, what work practices must be used for interim control work? - wet methods and HEPA vacuums, containment depends on amount and type of work in general, in what order would you conduct a lead dust cleanup? start at the rear of a building and work forward and down cleaning the highest horizontal surfaces first, and move from clean to dirty areas difference between "reevaluation" and "annual visual survey" reevaluations are done by a trained risk assessor and includes taking some soil and/or dust samples, annual surveys are done by the owner T/F normal vacuums can be used for small lead dust clean-ups but HEPA vacuums must be used for big jobs false the basic abatement methods are replacement, removal, enclosure what percent of total housing units must be sampled in "multifamily housing" no set %, follow chart in guidelines T/F, one of the responsibilities of a certified lead paint inspector is to vacuum and wash an area clean enough to meet clearance criteria false which of the following can often be grouped together in a single testing combination? -interior casings, stops, jambs, and aprons on the same window -interior and exterior mullions on the same window -interior and exterior sashes on the same window -interior window casings and mullions on the same window -interior casings, stops, jambs, and aprons on the same window three of these are parts of a window. which is not? -mullions -stringer -sash -apron stringer