Exam (elaborations)
Lead IA Exam Practice
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- Lead Supervisor Exa
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- Lead Supervisor Exa
Lead IA Exam Practice
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Lead IA Exam Practicewhich federal agencies are actively involved in developing lead regulations and
policies? - ANS-EPA, OSHA, HUD
what role does OSHA play in the prevention of lead poisoning? - ANS-inspects job sites
for worker safety and sets standards for worker protection
Three are REQUIRED by OSHA for exposures over the lead PEL - ANS--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? - ANS-DHS
T/F, the only requirement for DHS certification is that you pass the exam at the end of
the DHS-approved training course - ANS-False
Which is the primary agency regulating lead-contaminated waster disposal? - ANS-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 - ANS--
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 - ANS-medical examination by a physician
Under OSHA, who must be in lead medical surveillance programs? - ANS-persons
exposed >30 days above 30 ug/m3
the XRF analyzer was selected by HUD for lead based paint testing primarily because -
ANS-it may be the most cost effective technique
paint samples that test "inconclusive" by XRF should have confirmatory samples redone
by - ANS-atomic absorption analysis
, submissions of small amounts of substrate materials with paint samples for laboratory
analysis will - ANS-over and underestimate the lead concentration if results are in
percent by weight
to collect water samples for laboratory analysis for lead - ANS-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 - ANS-rough concrete and carpets
atomic absorption sample results for lead in paint are reported as - ANS-percent lead by
weight
lab methods for the analysis of lead include - ANS-- inductively coupled plasma
- flame atomic absorption
- graphite furnace atomic absorption
what is used to detect lead in paint - ANS-x-ray fluorescence analyzer (XRF)
HUD wipe sampling procedure requires - ANS-- 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 - ANS-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? - ANS-lab=0.5% by weight; XRF=1.0
mg/cm2
why are field test kits such as sodium sulfide and rhodizonate controversial? - ANS-they
produce false +/- and require color distinctions
put lead dust wipe samples into - ANS-hard shelled container such as a centrifuge tube
put lead paint chip samples into - ANS-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 - ANS-- measure sample area exactly
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