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Exam (elaborations)

Asbestos Investigator UPDATED Exam Questions and CORRECT Answers

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  • Asbestos Investigator

Asbestos Investigator UPDATED Exam Questions and CORRECT Answers Two Groups of Asbestos - CORRECT ANSWER- Serpentine & Amphibole Serpentine - CORRECT ANSWER- Sheet/layered structure Amphibole - CORRECT ANSWER- Chain-like crystal structuer Chrysotile - CORRECT ANSWER- Only Asbestos mineral in ...

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  • September 16, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Asbestos Investigator
  • Asbestos Investigator
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MGRADES
Asbestos Investigator UPDATED Exam
Questions and CORRECT Answers
Two Groups of Asbestos - CORRECT ANSWER- ✔✔Serpentine & Amphibole



Serpentine - CORRECT ANSWER- ✔✔Sheet/layered structure



Amphibole - CORRECT ANSWER- ✔✔Chain-like crystal structuer



Chrysotile - CORRECT ANSWER- ✔✔Only Asbestos mineral in the Serpentine group (most
commonly used) ~95% of what is found. White color


5 types found in Amphibole Group - CORRECT ANSWER- ✔✔Amosite, Crocidolite,
Anthophyllite, Tremolite, & Actinolite


Amosite - CORRECT ANSWER- ✔✔Second most common (brown)



Crocidolite - CORRECT ANSWER- ✔✔(Blue) used in high temperature insulation
applications


Friable - CORRECT ANSWER- ✔✔Crumbled, pulverized, or reduced to powder by hand
pressure when dry


Surfacing Materials - CORRECT ANSWER- ✔✔Sprayed or troweled on surfaces



Thermal System Insulation - CORRECT ANSWER- ✔✔Insulation used to inhibit heat
transfer or prevent condensations


Miscellaneous Materials - CORRECT ANSWER- ✔✔Other largely nonfriable
products/materials

, PLM - CORRECT ANSWER- ✔✔Polarized Light Microscopy



TEM - CORRECT ANSWER- ✔✔transmission electron microscope



Dose-response Effect - CORRECT ANSWER- ✔✔People who work with asbestos will have
a much higher exposure and more likely to get health risk


Health Effects - CORRECT ANSWER- ✔✔Lung Cancer, Asbestosis, Mesothelioma



When did EPA Guidance first go into effect - CORRECT ANSWER- ✔✔March 31, 1986


How many Samples at minimum should be taken for surfacing materials for 1,000 SF or less
- CORRECT ANSWER- ✔✔At least 3


How many Samples at minimum should be taken for surfacing materials for 1,000 SF to
5,000 SF - CORRECT ANSWER- ✔✔At least 5


How many Samples at minimum should be taken for surfacing materials for 5,000 SF or
greater - CORRECT ANSWER- ✔✔At least 7


What is the recommended sample number for surfacing materials - CORRECT ANSWER-
✔✔Always 9


How many samples of thermal insulation should be taken in general? - CORRECT
ANSWER- ✔✔At least 3 bulk samples in a random matter of each homogenous material



When can you take 1 sample of thermal insulation? - CORRECT ANSWER- ✔✔If the
material is a patch and less than 6 linear feet


When do you not need to sample thermal insulation? - CORRECT ANSWER- ✔✔If it is
fiberglass

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