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Asbestos Worker/Handler Certification Exam Practice Test 1 QUESTIONS AND CORRECT ANSWERS, Exams of Environmental Engineering

South CollegeEnvironmental Engineering

Asbestos Worker/Handler Certification Exam Practice Test 1 QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2025 Q&A | INSTANT DOWNLOAD PDF

Typology: Exams

2024/2025

Available from 07/11/2025

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Asbestos Worker/Handler Certification
Exam Practice Test 1 QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES 2025 Q&A | INSTANT
DOWNLOAD PDF
1. What is the primary health risk associated with asbestos
exposure?
Lung cancer
Asbestos fibers can be inhaled and cause scarring, which
can eventually lead to lung cancer, mesothelioma, or
asbestosis.
2. Which agency sets standards for permissible exposure limits
(PELs) of asbestos in the workplace?
OSHA
The Occupational Safety and Health Administration (OSHA)
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Download Asbestos Worker/Handler Certification Exam Practice Test 1 QUESTIONS AND CORRECT ANSWERS and more Exams Environmental Engineering in PDF only on Docsity!

Asbestos Worker/Handler Certification

Exam Practice Test 1 QUESTIONS AND

CORRECT ANSWERS (VERIFIED ANSWERS)

PLUS RATIONALES 2025 Q&A | INSTANT

DOWNLOAD PDF

  1. What is the primary health risk associated with asbestos exposure? Lung cancer Asbestos fibers can be inhaled and cause scarring, which can eventually lead to lung cancer, mesothelioma, or asbestosis.
  2. Which agency sets standards for permissible exposure limits (PELs) of asbestos in the workplace? OSHA The Occupational Safety and Health Administration (OSHA)

regulates workplace exposure limits to protect worker health.

  1. What type of asbestos is most commonly used in commercial products? Chrysotile Chrysotile, or white asbestos, accounts for about 95% of all asbestos used in buildings.
  2. Which of the following personal protective equipment (PPE) is required during Class I asbestos work? Full-face respirator with HEPA filters A full-face respirator is required to prevent inhalation of asbestos fibers during high-risk tasks.
  3. What is the function of a negative pressure enclosure during asbestos abatement? To prevent asbestos fibers from escaping the work area Negative pressure keeps contaminated air inside the enclosure, reducing the risk of exposure outside the containment.
  4. How often must air monitoring be conducted in an occupied building during abatement? Daily
  1. What color plastic is typically used to identify asbestos waste? Yellow Yellow plastic with asbestos warning labels is used to alert handlers to the contents.
  2. What should be the minimum number of decontamination chambers in a decon unit? Three A clean room, shower room, and equipment room are standard to reduce contamination spread.
  3. When must asbestos workers receive refresher training? Annually Annual refresher training ensures workers stay current with safety and legal requirements.
  4. What is the minimum efficiency rating for HEPA filters used in asbestos work? 99.97% at 0.3 microns HEPA filters are essential for trapping fine asbestos fibers during cleanup and air filtering.
  5. What is the first step before entering a regulated area?

Put on required PPE Entering without proper PPE poses a direct health risk from airborne fibers.

  1. How should asbestos waste bags be handled? Do not drop or throw them Rough handling can tear the bags and release fibers.
  2. What is a Class I asbestos job under OSHA regulations? Removal of TSI and surfacing ACM Class I work involves the highest potential for fiber release and strictest controls.
  3. How should disposable coveralls be handled after work? Disposed of as asbestos waste They are considered contaminated and must not be reused or laundered.
  4. When is a final visual inspection done? After clearance air sampling Visual inspection ensures all ACM has been removed before post-abatement air sampling.
  5. Who is responsible for ensuring workers comply with safety rules? Competent person
  1. What is the primary symptom of asbestosis? Shortness of breath Scarring in the lungs makes it difficult to breathe.
  2. What material type may contain asbestos in older buildings? Floor tiles Many 9x9 inch tiles from before 1980 contain asbestos.
  3. Why is dry removal of ACM discouraged? It releases more fibers Dry methods disturb the fibers, increasing airborne contamination.
  4. Which respirator type is least protective in asbestos environments? Dust mask Dust masks do not filter asbestos fibers and are not approved for asbestos work.
  5. Which type of monitoring confirms worker exposure? Personal air sampling This method measures the actual exposure experienced by the worker.
  6. What is required before reoccupancy after abatement?

Clearance air testing Clearance ensures that air is safe for reentry by building occupants.

  1. Why are warning signs posted around regulated areas? To inform others of the hazard and entry restrictions They help protect untrained personnel from accidental exposure.
  2. When should workers decontaminate themselves? Before leaving the containment area Decontamination prevents asbestos from spreading to clean areas.
  3. What does “friable” asbestos mean? Can be crumbled by hand pressure Friable asbestos is more dangerous because it can easily release fibers into the air.
  4. What is the first action if asbestos is discovered during demolition? Stop work and notify supervisor Work must cease to assess and manage the hazard properly.

HEPA vacuumed and/or wet wiped This decontaminates the tools for safe reuse or storage.

  1. Which test is used to detect asbestos fibers in the air? Phase Contrast Microscopy (PCM) PCM is a standard method for measuring airborne fiber concentrations.
  2. Which test provides fiber identification? Transmission Electron Microscopy (TEM) TEM distinguishes asbestos from non-asbestos fibers.
  3. What should you do if you find a tear in your protective suit? Exit the area and replace it immediately Torn PPE can allow asbestos fibers to contact the skin or be inhaled.
  4. How should intact asbestos-containing materials be treated? Left undisturbed and monitored Disturbing intact materials can increase hazard unnecessarily.
  5. What does NESHAP regulate? Demolition and renovation of buildings with asbestos

EPA’s NESHAP rule manages air pollutants from these activities.

  1. How should the asbestos removal area be labeled? Danger signs with specific asbestos warning language Federal law mandates specific labeling requirements.
  2. What distance should warning signs be posted from the regulated area? At every entrance and access point Ensures anyone approaching is warned of the hazard.
  3. What is the purpose of a HEPA vacuum? To capture asbestos fibers during cleaning HEPA filters trap fine particles including hazardous asbestos.
  4. Who must wear respiratory protection in a regulated area? All personnel All individuals inside must be protected from airborne fibers.
  5. What should be done with contaminated footwear? Dispose as asbestos waste or store in containment Shoes may carry fibers and should not be used outside work zones.

AHERA

The Asbestos Hazard Emergency Response Act (AHERA) sets inspection and management requirements for schools.

  1. Why is smoking prohibited in asbestos work areas? Smoking increases the risk of lung cancer with asbestos exposure Asbestos exposure combined with smoking significantly raises cancer risk.
  2. What must workers do after removing contaminated PPE? Shower completely before entering the clean room Showering removes any residual fibers before accessing clean zones.
  3. When should negative air machines be turned off? Only after final air clearance is passed Maintaining negative pressure until clearance ensures airborne fibers are controlled.
  4. Who is allowed to enter a regulated area during asbestos work? Trained and authorized personnel only Untrained individuals may not be aware of safety protocols and could be exposed.
  1. What kind of glove is recommended for asbestos abatement? Disposable, chemical-resistant gloves These protect the hands and can be disposed of with other contaminated PPE.
  2. What are the acceptable methods for cleaning equipment after asbestos work? Wet wiping and HEPA vacuuming These methods reduce fiber release compared to dry wiping.
  3. What is the most reliable method to prevent fiber release during asbestos removal? Wetting the material thoroughly before and during removal Moist asbestos is less likely to become airborne.
  4. How should asbestos waste be labeled? With a DOT and OSHA-approved warning label Proper labeling ensures safe handling and legal compliance during transport and disposal.
  5. How often must the negative pressure inside containment be monitored? Continuously during abatement

Stop using it and inspect or replace it An unusual noise may indicate filter failure or motor issues, risking fiber release.

  1. What defines a Class II asbestos job? Removal of non-thermal system insulation ACM Examples include floor tiles, roofing, and wallboard.
  2. Which of the following materials may be PACM if installed before 1981? Thermal system insulation and surfacing materials These materials are presumed to contain asbestos unless tested otherwise.
  3. What must be done when exiting the shower unit during decontamination? Dry off and enter the clean room This maintains the separation between clean and contaminated areas.
  4. How should workers move between chambers in the decon unit? In sequential order without reversing This prevents re-contaminating cleaner zones.
  5. What does an aggressive air sampling technique involve?

Using fans and leaf blowers to stir up particles Aggressive sampling ensures suspended fibers are detected.

  1. What is the main goal of asbestos regulations? Protect worker health and public safety Regulations are in place to minimize risk of asbestos- related diseases.
  2. Which type of asbestos is considered the most dangerous due to its thin, sharp fibers? Crocidolite Also known as blue asbestos, it is highly hazardous and easily airborne.
  3. What is the proper way to check a respirator's seal before entering the work area? Perform a positive and negative pressure check These checks confirm that the respirator is sealed properly.
  4. What does the acronym ACM stand for? Asbestos-Containing Material Any material with more than 1% asbestos is classified as ACM.

Work must stop immediately Losing pressure compromises containment integrity.

  1. What agency certifies asbestos training programs? EPA or state-approved agencies Certification ensures training is standardized and meets federal requirements.
  2. What should be inspected before reuse of tools? Check for contamination and damage Damaged or dirty tools pose health risks and may not function properly.
  3. When must regulated areas be demarcated? Before asbestos work begins This marks zones to restrict access and warn of hazards.
  4. What must be documented in the daily log during abatement? Air monitoring results, work activities, equipment checks The log serves as a record for compliance and safety.
  5. What kind of signage must be posted at the entrance of a regulated area? “Danger – Asbestos” warning signs Required by OSHA to alert workers and the public.
  1. What level of training is required for asbestos workers? Initial and annual refresher training Ongoing education ensures continued compliance and safety.
  2. What is the function of the clean room in a decon unit? Storage for clean clothes and personal items The clean room is free from asbestos contamination.
  3. Which document outlines a building’s asbestos locations and condition? Asbestos Management Plan This plan helps track ACM and maintain safety over time.
  4. What are acceptable methods to prevent fiber release during removal? Wetting, containment, and negative pressure These combined controls reduce exposure risks.
  5. How should non-disposable tools be stored after cleaning? In clean, sealed containers To avoid re-contamination before the next use.