Lead Inspector Questions And Answers Verified 100% Correct

Lead Inspector Questions And Answers Verified 100% Correct What is the easiest way for lead to get into the house from soil? - ANSWER Person tracks lead in from walking on leaded soil What is acid digestion? - ANSWER Used to analyze samples for lead in lab How does lead affect fertility? - ANSWER Both males and females What certification do respirators need to have? - ANSWER NIOSH (National Institute for Occupational Safety & Health) What causes leeching into pipes? - ANSWER Hot - soft water Which laboratories are recognized by EPA? - ANSWER NLLAP (National Lead Laboratory Accreditation Program) Clearance dust wipe sampling requires what? - ANSWER 2 pass method Spot testing? - ANSWER Sodium sulfide changes color EPA Regulations in lead dust? - ANSWER Floors - 10 µg/ft² Sills - 100 µg/ft² Troughs - 400 µg/ft² What is a room equivalent? - ANSWER An identifiable part of a residence How many layers should paint-chip samples include? - ANSWER All layers What is a sufficient quantity of paint for laboratory analysis? - ANSWER 4 square inches If property is lead free, must the owner disclose lead results to prospective renters? - ANSWER NO HUD/EPA standard for lead-based paint? - ANSWER 1.0 mg/cm² or 0.5% by weight Statistical confidence in multi-family housing? - ANSWER Pre-1960 - less than 5 percent or fewer than 50 - less than 10 percent or fewer than 50 What does a performance characteristic sheet for an XRF not determine? - ANSWER Amount of lead What is a blank sample? - ANSWER An unexposed sample of the medium being used Advantages of using the XRF include the following except? - ANSWER Low cost What does a dosimetry badge and rings refer to? - ANSWER Inspector wears them during inspection Why does the EPA/HUD recommend XRF instead of paint chip samples? - ANSWER Quickest results What are the classifications of substrate correction? - ANSWER Positive or negative What are the types of ionizing radiation? - ANSWER Alpha, beta and gamma (XRF emits) Why is substrate correction used? - ANSWER Due to interference from the substrate material beneath paint Open shutter time? - ANSWER The longer the shutter time the older the radioactive material in the XRF. (open shutter time = 2(age/half-life) x nominal time) Where do tenants go when inspector uses the XRF? - ANSWER 10 feet behind the inspector Why is a notice sent before the inspector goes out for inspection? - ANSWER So the tenants aren't present When does the radioactive core material need to be replaced in an XRF? - ANSWER Per the manufacturer's instructions How much Styrofoam is needed for calibration test? - ANSWER 12 inches of Styrofoam on solid non-plywood wooden board What certification is needed for an XRF? - ANSWER NIST (National Institute of Standards and Technology) Who regulates the radioactive source used in XRF's? - ANSWER NRC (Nuclear Regulatory Commission) How often must an XRF be checked for leaks? - ANSWER 6 months Substrate correction factors? - ANSWER Average of 6 readings (3 readings collected from 2 components), sampled components must be bare What are the 2 questions a lead inspection report must answer? - ANSWER Is there lead and where is it. How long, according to the EPA, should lead inspection records be kept? - ANSWER 3 years In the body, what area does lead impact the most? - ANSWER Bones Heat guns must be rated below 1,100*F? True or false? - ANSWER True When is tap water lead levels the highest? - ANSWER When water sits overnight What is a testing combination? - ANSWER Room equivalent + building component + substrate What is the procedure for clean up of lead dust after abatement or renovation? - ANSWER HEPA vacuum, wet clean, HEPA vacuum again What are interim controls? - ANSWER Measures designed to temporarily reduce human exposure (up to 20 years) What are the advantages of composite sampling? - ANSWER Lower cost per surface sampled What is OSHA's action level for lead? - ANSWER 30 µg/m³ What is OSHA's PEL for lead? - ANSWER 50 µg/m³ Which is not an example of a substrate? - ANSWER Plastic What is not an example of lead poisoning health effects? - ANSWER Hyperglycemia What is NOT a route of exposure? - ANSWER Convection