I85PREP
⌘ K
AHERA Asbestos Supervisor study materials
AHERA Asbestos Supervisor study resources

AHERA Asbestos Supervisor practice questions

One question at a time. Build your AHERA Asbestos Supervisor understanding.

First 50 of 200 questions. Each one lists the choices, the correct answer, and an explanation. The checker at the top of this page saves progress in this browser when it is available.

Continue in the practice tool above to load more questions, 50 at a time.

Question 1Physical Characteristics of Asbestos and Health Effects

Which mineral group accounts for the great majority of asbestos used commercially in the United States?

  1. Serpentine Correct answer.
  2. Mica
  3. Amphibole
  4. Pyroxene

Explanation

Chrysotile, a serpentine mineral, has historically made up the overwhelming share of commercial asbestos use. The amphibole group includes several regulated asbestos minerals but in far smaller commercial volumes.

Question 2Physical Characteristics of Asbestos and Health Effects

Chrysotile belongs to which mineral class?

  1. Amphibole
  2. Serpentine Correct answer.
  3. Zeolite
  4. Carbonate

Explanation

Chrysotile is the fibrous form of serpentine. Its curved, sheet-like crystal structure distinguishes it from the straight-chain amphibole asbestos minerals.

Question 3Physical Characteristics of Asbestos and Health Effects

Which regulated asbestos mineral is known commercially as "blue asbestos"?

  1. Anthophyllite
  2. Crocidolite Correct answer.
  3. Amosite
  4. Chrysotile

Explanation

Crocidolite is a sodium iron amphibole that occurs as straight, needle-like fibers and is known as blue asbestos. Amosite is called brown asbestos and chrysotile is called white asbestos.

Question 4Physical Characteristics of Asbestos and Health Effects

Which of the following minerals is classified as an amphibole asbestos mineral?

  1. Chrysotile
  2. Actinolite Correct answer.
  3. Vermiculite
  4. Talc

Explanation

Actinolite is one of the six regulated asbestos minerals and belongs to the amphibole group. Chrysotile is serpentine, while talc and vermiculite are unrelated minerals that can sometimes be contaminated with asbestos.

Question 5Physical Characteristics of Asbestos and Health Effects

Which of the following is a regulated amphibole asbestos mineral?

  1. Halloysite
  2. Chrysotile
  3. Amosite Correct answer.
  4. Sepiolite

Explanation

Amosite is a regulated amphibole asbestos mineral, along with crocidolite, anthophyllite, tremolite, and actinolite. The other choices are either serpentine asbestos or non-asbestos clay minerals.

Question 6Physical Characteristics of Asbestos and Health Effects

Which physical property describes how easily asbestos fibers can be separated and suspended in air?

  1. Thermal conductivity
  2. Specific gravity
  3. Alkalinity
  4. Friability Correct answer.

Explanation

Friability refers to whether a material can be crumbled, pulverized, or reduced to powder by hand pressure, which strongly influences fiber release. Thermal conductivity, specific gravity, and alkalinity describe other physical or chemical properties.

Question 7Physical Characteristics of Asbestos and Health Effects

Which of the following materials is considered a non-friable asbestos-containing material?

  1. Loose-fill attic insulation
  2. Sprayed-on fireproofing
  3. Vinyl floor tile Correct answer.
  4. Pipe insulation wrapping

Explanation

Non-friable materials such as vinyl floor tile and asbestos cement products cannot be crumbled by hand pressure and therefore release fewer fibers unless disturbed by mechanical means. Sprayed fireproofing, loose-fill insulation, and pipe wrapping are friable.

Question 8Physical Characteristics of Asbestos and Health Effects

Which physical characteristic most explains why asbestos fibers remain suspended in air for long periods?

  1. Magnetic attraction
  2. Small diameter with high aspect ratio Correct answer.
  3. High moisture absorption
  4. High density

Explanation

Asbestos fibers are extremely thin relative to their length, giving them a high aspect ratio and low settling velocity. This allows them to remain airborne and be inhaled. Density, magnetism, and moisture absorption do not explain long suspension times.

Question 9Physical Characteristics of Asbestos and Health Effects

Which term describes a fiber whose length is at least three times its width and that meets regulated size criteria?

  1. Respirable fiber Correct answer.
  2. Aggregate
  3. Fibril
  4. Bundle

Explanation

A respirable fiber is generally defined by a length-to-width ratio of at least 3:1 and dimensions that allow it to reach the deep lung. Fibrils and bundles describe fiber structures rather than a size-based respirability definition.

Question 10Physical Characteristics of Asbestos and Health Effects

Which asbestos mineral is known for having the greatest resistance to acids and is therefore used in chemical-resistant products?

  1. Crocidolite Correct answer.
  2. Chrysotile
  3. Amosite
  4. Tremolite

Explanation

Crocidolite is highly resistant to acids and was historically used in acid-resistant products. Chrysotile and amosite are less acid-resistant, and tremolite is not known for superior acid resistance.

Question 11Physical Characteristics of Asbestos and Health Effects

Which of the following best describes the crystal habit of amphibole asbestos minerals?

  1. Spherical granules
  2. Flat hexagonal plates
  3. Curled, scroll-like sheets
  4. Straight, needle-like fibers Correct answer.

Explanation

Amphibole asbestos minerals crystallize as straight, chain-like fibers. Chrysotile, by contrast, forms curled, scroll-like sheets. Spherical granules and flat plates do not describe asbestos habits.

Question 12Physical Characteristics of Asbestos and Health Effects

Why are amphibole asbestos fibers generally considered more hazardous than chrysotile for causing mesothelioma?

  1. They are larger in diameter
  2. They are stiffer and persist longer in lung tissue Correct answer.
  3. They dissolve faster in lung fluid
  4. They contain more calcium

Explanation

Amphibole fibers are straighter, more rigid, and more biopersistent in lung tissue, which is associated with a higher mesothelioma potency. Faster dissolution would reduce hazard, and diameter and calcium content are not the key factors.

Question 13Physical Characteristics of Asbestos and Health Effects

The primary route of occupational exposure to asbestos is which of the following?

  1. Inhalation Correct answer.
  2. Ingestion
  3. Eye contact
  4. Dermal absorption

Explanation

Inhalation of airborne fibers is the dominant route of occupational exposure and the route linked to asbestos-related lung disease. Ingestion, skin contact, and eye contact are not the principal occupational exposure pathways.

Question 14Physical Characteristics of Asbestos and Health Effects

Which disease is a progressive scarring of lung tissue caused by inhaling asbestos fibers?

  1. Lung cancer
  2. Pleural plaque
  3. Mesothelioma
  4. Asbestosis Correct answer.

Explanation

Asbestosis is diffuse interstitial fibrosis of the lung caused by retained asbestos fibers. Pleural plaque is a localized pleural thickening, while lung cancer and mesothelioma are malignancies rather than fibrotic scarring.

Question 15Physical Characteristics of Asbestos and Health Effects

A worker with heavy long-term asbestos exposure develops a cancer of the pleural lining. Which disease is most consistent with this presentation?

  1. Mesothelioma Correct answer.
  2. Asbestosis
  3. Byssinosis
  4. Silicosis

Explanation

Mesothelioma is a malignancy arising from the mesothelial lining of the pleura or peritoneum and is strongly associated with asbestos exposure. Asbestosis is fibrosis, and silicosis and byssinosis are caused by other exposures.

Question 16Physical Characteristics of Asbestos and Health Effects

Which factor most strongly increases the risk of asbestos-related disease among exposed workers?

  1. Use of personal protective equipment
  2. Indoor humidity
  3. Cumulative dose of inhaled fibers Correct answer.
  4. Worker's blood type

Explanation

Risk of asbestos-related disease rises with cumulative inhaled dose, which combines fiber concentration and duration of exposure. PPE reduces exposure, and blood type and humidity are not established risk determinants.

Question 17Physical Characteristics of Asbestos and Health Effects

Which of the following best explains the synergistic effect of smoking and asbestos exposure on lung cancer risk?

  1. The combined risk is far greater than either factor alone Correct answer.
  2. Asbestos neutralizes tobacco carcinogens
  3. Smoking removes fibers from the lung
  4. Smoking prevents fiber inhalation

Explanation

Epidemiologic evidence shows that smokers exposed to asbestos have lung cancer risks far exceeding the sum of the individual risks. Smoking does not remove fibers, prevent inhalation, or neutralize carcinogens.

Question 18Physical Characteristics of Asbestos and Health Effects

How long after first exposure does asbestos-related lung cancer typically appear?

  1. A few months
  2. Within one year
  3. Several decades Correct answer.
  4. A few weeks

Explanation

Asbestos-related cancers typically have a long latency, commonly on the order of 15 to 40 years or more after first exposure. Short intervals of weeks, months, or one year are inconsistent with the known latency period.

Question 19Physical Characteristics of Asbestos and Health Effects

Which statement best describes the current scientific consensus on a safe threshold for asbestos exposure?

  1. A clear safe threshold is well established
  2. Only chrysotile has a safe threshold
  3. Only amphiboles have a safe threshold
  4. No safe threshold has been established Correct answer.

Explanation

Regulatory and scientific bodies generally treat asbestos as having no established safe exposure threshold, so exposure should be minimized and controlled. Claims of a safe threshold for particular fiber types are not supported.

Question 20Physical Characteristics of Asbestos and Health Effects

Which fiber characteristic is most closely associated with the ability to reach the alveolar region of the lung?

  1. High surface charge
  2. High fiber density
  3. Long length and large diameter
  4. Small aerodynamic diameter Correct answer.

Explanation

Particles with small aerodynamic diameters can penetrate to the alveolar region, while larger fibers are more likely to deposit in the upper airways. Length, density, and surface charge alone do not determine alveolar penetration.

Question 21Physical Characteristics of Asbestos and Health Effects

A material that can be crumbled, pulverized, or reduced to powder by hand pressure is best described as which of the following?

  1. Regulated
  2. Non-friable
  3. Encapsulated
  4. Friable Correct answer.

Explanation

Friability is defined by the ability of a material to be crumbled or reduced to powder by hand pressure. Non-friable materials resist such breakdown, and encapsulated and regulated describe other statuses.

Question 22Physical Characteristics of Asbestos and Health Effects

Which of the following is a recognized health effect associated with asbestos exposure?

  1. Pleural plaques Correct answer.
  2. Hearing loss
  3. Cataracts
  4. Dermatitis

Explanation

Pleural plaques are localized areas of pleural thickening and are a common marker of asbestos exposure. Cataracts, hearing loss, and dermatitis are not established asbestos-related health effects.

Question 23Physical Characteristics of Asbestos and Health Effects

Which of the following best describes the mechanism by which asbestos fibers may cause cellular damage?

  1. Release of reactive oxygen species and inflammatory responses Correct answer.
  2. Neutralization of stomach acid
  3. Direct bacterial infection of lung tissue
  4. Blockage of blood vessels by fibers

Explanation

Retained fibers can generate reactive oxygen species and provoke chronic inflammation, contributing to fibrosis and carcinogenesis. Asbestos does not cause bacterial infection, vessel blockage, or acid neutralization.

Question 24Physical Characteristics of Asbestos and Health Effects

Which of the following best explains why amphibole asbestos fibers are more biopersistent in lung tissue than chrysotile?

  1. They are more soluble in water
  2. They have a more chemically durable structure Correct answer.
  3. They dissolve more readily in lung fluid
  4. They contain more organic matter

Explanation

Amphibole fibers have a more chemically durable crystal structure that resists dissolution in lung fluid, increasing biopersistence. Greater solubility would shorten persistence, and organic content is not the basis for the difference.

Question 25Federal, State, and Local Asbestos Regulations

Under the federal AHERA rule, which entity is responsible for ensuring that a local education agency's asbestos management plan is properly implemented at the school building level?

  1. The asbestos abatement contractor
  2. The designated person for each school building Correct answer.
  3. The state health department inspector
  4. The EPA regional administrator

Explanation

AHERA requires each local education agency to designate a person to ensure that the asbestos management plan is implemented and that required activities are carried out. This designated person coordinates inspections, plan updates, and notification duties at the building level.

Question 26Federal, State, and Local Asbestos Regulations

A public school building constructed in 1985 undergoes a renovation that will disturb asbestos-containing material. Under AHERA, when must the local education agency conduct a reinspection of the affected area?

  1. Every six months regardless of project activity
  2. Only if a parent files a written complaint
  3. Whenever the management plan is updated following the project Correct answer.
  4. Only after the renovation is fully complete

Explanation

AHERA requires the management plan to be updated and reinspections performed when changes occur, such as a major renovation or abatement that alters the condition of asbestos-containing materials. The reinspection is tied to the plan update rather than a fixed calendar interval.

Question 27Federal, State, and Local Asbestos Regulations

What is the primary purpose of the Asbestos Hazard Emergency Response Act (AHERA) as enacted in 1986?

  1. To ban all uses of asbestos in commercial products
  2. To regulate asbestos in public and private schools Correct answer.
  3. To fund asbestos removal in federal buildings
  4. To set worker training standards for construction trades

Explanation

AHERA directed EPA to regulate asbestos-containing materials in public and private elementary and secondary schools, including inspection, management planning, and response actions. It is a school-focused statute rather than a general product ban or federal building program.

Question 28Federal, State, and Local Asbestos Regulations

Under the OSHA asbestos standard, an employer must establish a regulated area around an asbestos abatement operation when employee exposure may exceed which threshold?

  1. The action level for a 30-day period
  2. The excursion limit only
  3. The permissible exposure limit Correct answer.
  4. Any detectable airborne fiber concentration

Explanation

The OSHA asbestos standard requires regulated areas where airborne fiber concentrations may exceed the permissible exposure limit. Signage and access controls must restrict entry to authorized personnel.

Question 29Federal, State, and Local Asbestos Regulations

A supervisor is planning a project governed by the EPA asbestos NESHAP. Which activity requires notification to the appropriate regulatory agency before demolition or renovation begins?

  1. Renovation disturbing twenty square feet of regulated asbestos-containing material Correct answer.
  2. Removal of five square feet of asbestos-containing floor tile
  3. Removal of ten linear feet of asbestos-containing pipe insulation
  4. Routine maintenance on a single asbestos-containing gasket

Explanation

NESHAP requires advance notification for demolitions and for renovations that will disturb threshold quantities of regulated asbestos-containing material, which is 160 square feet, 260 linear feet, or 35 cubic feet. Small removals below these thresholds generally do not trigger the notification requirement.

Question 30Federal, State, and Local Asbestos Regulations

Which federal agency administers the Model Accreditation Plan that sets training and certification requirements for asbestos abatement workers and supervisors?

  1. The Department of Housing and Urban Development
  2. The Occupational Safety and Health Administration
  3. The National Institute for Occupational Safety and Health
  4. The Environmental Protection Agency Correct answer.

Explanation

The EPA administers the Model Accreditation Plan under AHERA, which establishes minimum training and accreditation requirements for persons performing asbestos-related work in schools and certain public buildings. States may adopt their own accreditation programs consistent with the MAP.

Question 31Federal, State, and Local Asbestos Regulations

A supervisor is working in a state that has been granted delegation to enforce the federal asbestos NESHAP. What does this delegation mean for the project?

  1. The contractor may choose which set of rules to follow
  2. Only federal inspectors may issue violations
  3. Federal requirements no longer apply to the project
  4. The state program must be at least as stringent as the federal rule Correct answer.

Explanation

When EPA delegates NESHAP enforcement to a state, the state program must be no less stringent than the federal requirements. Both federal and delegated state requirements continue to apply, and the more protective provisions govern.

Question 32Federal, State, and Local Asbestos Regulations

Under AHERA, how often must a local education agency conduct a reinspection of asbestos-containing building materials in its schools?

  1. Every three years Correct answer.
  2. Every five years
  3. Every year
  4. Every ten years

Explanation

AHERA requires reinspections of asbestos-containing building materials at least once every three years, or more often if changes in condition warrant. The reinspection supports updating the management plan.

Question 33Federal, State, and Local Asbestos Regulations

A supervisor discovers that a school's asbestos management plan is not available at the school building. Under AHERA, what is the requirement regarding plan availability?

  1. The plan must be available at the school for inspection Correct answer.
  2. The plan is confidential and available only to staff
  3. The plan must be posted publicly on the internet
  4. The plan may be kept only at the district office

Explanation

AHERA requires that a copy of the management plan be available at each school building for inspection by parents, teachers, and others. The local education agency must also provide notice of plan availability.

Question 34Federal, State, and Local Asbestos Regulations

Which action is required of a local education agency under AHERA regarding annual notification to parents, teachers, and employee organizations?

  1. Providing annual notice of the availability of the management plan Correct answer.
  2. Posting abatement schedules in the local newspaper
  3. Distributing a copy of the full management plan to each parent
  4. Reporting fiber counts to the state each year

Explanation

AHERA requires the local education agency to provide annual notification to parents, teachers, and employee organizations about the availability of the management plan and any asbestos-related activities. It does not require distributing the full plan to every parent.

Question 35Federal, State, and Local Asbestos Regulations

A supervisor is reviewing the OSHA asbestos standard's requirements for medical surveillance. Which employees must be included in a medical surveillance program?

  1. Employees exposed above the permissible exposure limit for 30 or more days per year Correct answer.
  2. Only employees who handle friable material
  3. Employees who request it in writing regardless of exposure
  4. All employees who enter the building

Explanation

The OSHA asbestos standard requires medical surveillance for employees who are or will be exposed above the permissible exposure limit for 30 or more days per year, or above the excursion limit for 30 or more days per year. Exposure monitoring determines who is covered.

Question 36Federal, State, and Local Asbestos Regulations

Under the EPA Worker Protection Rule, which workers are covered by requirements modeled on the OSHA asbestos standard?

  1. Volunteers at nonprofit organizations
  2. Federal employees working in federal buildings
  3. State and local government employees not covered by OSHA Correct answer.
  4. Employees of private abatement contractors

Explanation

The EPA Worker Protection Rule extends worker protection requirements to state and local government employees who are not covered by OSHA because OSHA does not have jurisdiction over those public employees. Private-sector workers are covered directly by OSHA.

Question 37Federal, State, and Local Asbestos Regulations

A supervisor must post warning signs at the entrance to a regulated area. Which element is required on the signage under the OSHA asbestos standard?

  1. A statement that the area contains asbestos and that breathing asbestos fibers may cause cancer Correct answer.
  2. The date the building was constructed
  3. The name of the building owner
  4. The contractor's license number

Explanation

The OSHA asbestos standard requires warning signs at regulated areas that identify the hazard and warn that breathing asbestos fibers may cause cancer, along with instructions such as prohibiting eating and drinking. The sign communicates the hazard to those who might enter.

Question 38Federal, State, and Local Asbestos Regulations

A local education agency plans to abate asbestos-containing material in a school. Which statement best describes the AHERA requirement for using accredited personnel?

  1. All persons performing the abatement must be accredited Correct answer.
  2. Only the supervisor must be accredited
  3. Accreditation is optional if the work is small
  4. Only the inspector must be accredited

Explanation

AHERA requires that abatement work in schools be performed by accredited persons, including workers, supervisors, project designers, and inspectors as applicable. Accreditation follows completion of approved training.

Question 39Federal, State, and Local Asbestos Regulations

A supervisor is determining whether a renovation is subject to NESHAP. The project will strip and remove asbestos-containing roofing material. How should the material be classified for threshold purposes?

  1. As a regulated material because it is being stripped or removed in a way that may render it friable Correct answer.
  2. As a category I nonfriable material that is never regulated
  3. As a non-asbestos material if it is painted
  4. As a category II material exempt from all notification

Explanation

NESHAP treats category I and II nonfriable materials as regulated asbestos-containing material when they are subjected to sanding, grinding, cutting, or abrading, or when they are stripped or removed in a way that may render them friable. Such handling brings the material within the notification and work practice requirements.

Question 40Federal, State, and Local Asbestos Regulations

Under AHERA, which response action category involves removing asbestos-containing material?

  1. Removal Correct answer.
  2. Enclosure
  3. Repair
  4. Encapsulation

Explanation

AHERA recognizes response actions including repair, enclosure, encapsulation, and removal. Removal is the response action that physically takes the asbestos-containing material out of the building.

Question 41Federal, State, and Local Asbestos Regulations

A supervisor is reviewing a school's management plan and finds that the plan lacks a description of the location and condition of asbestos-containing building materials. Which AHERA requirement is unmet?

  1. The plan must include employee medical records
  2. The plan must include the results of the inspection and assessment Correct answer.
  3. The plan must include a budget for future abatement
  4. The plan must list contractor names

Explanation

AHERA management plans must document inspection results, including the location, condition, and assessment of asbestos-containing building materials, along with response actions and schedules. Missing location and condition information means the inspection documentation requirement is unmet.

Question 42Federal, State, and Local Asbestos Regulations

Which federal regulation addresses asbestos in schools specifically through inspection and management planning requirements?

  1. The OSHA asbestos standard, 29 CFR 1926.1101
  2. AHERA, 40 CFR Part 763 Correct answer.
  3. The Clean Air Act Title I
  4. NESHAP, 40 CFR Part 61

Explanation

AHERA requirements are codified in 40 CFR Part 763, Subpart E, which covers school inspections and management plans. NESHAP addresses emissions, and the OSHA standard addresses worker protection.

Question 43Federal, State, and Local Asbestos Regulations

A supervisor is told that a state has its own asbestos accreditation program. What is the general relationship between state accreditation programs and the EPA Model Accreditation Plan?

  1. State programs may be less stringent if approved
  2. State programs must be identical word for word
  3. State programs must be at least as stringent as the MAP Correct answer.
  4. State programs replace federal requirements entirely

Explanation

States may seek approval to administer their own accreditation programs, but those programs must meet or exceed the requirements of the EPA Model Accreditation Plan. Less stringent programs do not qualify.

Question 44Federal, State, and Local Asbestos Regulations

Under the OSHA asbestos standard, what is the permissible exposure limit as an 8-hour time-weighted average?

  1. 0.01 fiber per cubic centimeter
  2. 1.0 fiber per cubic centimeter
  3. 0.1 fiber per cubic centimeter Correct answer.
  4. 5.0 fibers per cubic centimeter

Explanation

The OSHA asbestos standard sets the permissible exposure limit at 0.1 fiber per cubic centimeter as an 8-hour time-weighted average, with an excursion limit of 1.0 fiber per cubic centimeter over 30 minutes.

Question 45Federal, State, and Local Asbestos Regulations

A supervisor is preparing a project in a school and must determine whether the work triggers AHERA's major-abatement notification or other requirements. Which factor most directly determines the applicable regulatory obligations?

  1. The number of workers on site
  2. The quantity and nature of material to be disturbed Correct answer.
  3. The age of the building
  4. The color of the asbestos-containing material

Explanation

Regulatory obligations under AHERA and NESHAP depend on the quantity and nature of the asbestos-containing material to be disturbed, such as whether it is friable or exceeds threshold amounts. These factors determine notification, work practice, and response action requirements.

Question 46Federal, State, and Local Asbestos Regulations

What must a local education agency do with the management plan before the plan is implemented?

  1. Submit it to the EPA for pre-approval
  2. Have it notarized by a state official
  3. Publish it in a trade journal
  4. Make it available for public review and comment Correct answer.

Explanation

AHERA requires the local education agency to make the management plan available for public inspection and to provide an opportunity for public comment before implementation. The plan is not submitted to EPA for pre-approval.

Question 47Federal, State, and Local Asbestos Regulations

A supervisor notes that the OSHA asbestos standard requires exposure monitoring. When must initial monitoring be performed?

  1. When employees are reasonably expected to be exposed above the action level Correct answer.
  2. Only after an employee reports symptoms
  3. Once every five years regardless of exposure
  4. Only when the building is demolished

Explanation

The OSHA asbestos standard requires initial exposure monitoring when employees are or may reasonably be expected to be exposed above the action level. Monitoring results then drive periodic monitoring, medical surveillance, and other requirements.

Question 48Federal, State, and Local Asbestos Regulations

Which statement accurately describes the relationship between AHERA and the OSHA asbestos standard for school abatement projects?

  1. AHERA governs worker protection while OSHA governs school management plans
  2. Only OSHA applies because schools are workplaces
  3. Both apply, with AHERA addressing school management and OSHA addressing worker safety Correct answer.
  4. Only AHERA applies because the work is in a school

Explanation

AHERA and the OSHA asbestos standard operate in different but overlapping areas: AHERA focuses on school building management and accreditation, while OSHA protects workers during abatement. Both sets of requirements apply to school abatement projects.

Question 49Employee Personal Protective Equipment

Under AHERA, which type of respirator must a supervisor select for asbestos work above the assigned protection factor of a half-mask air-purifying respirator?

  1. A disposable dust mask rated N95
  2. A single-use surgical mask
  3. A full-facepiece powered air-purifying respirator Correct answer.
  4. A half-mask with nuisance-dust cartridges

Explanation

When exposures exceed the protection afforded by a half-mask APR, a higher-protection respirator such as a full-facepiece PAPR is required. Nuisance-dust and surgical masks are never acceptable for asbestos. Selection must match the measured or anticipated exposure level.

Question 50Employee Personal Protective Equipment

What is the primary purpose of fit testing a tight-fitting respirator before asbestos abatement work?

  1. To measure the airborne fiber concentration in the work area
  2. To confirm the respirator forms an adequate seal on the wearer's face Correct answer.
  3. To document that the worker completed annual training
  4. To verify the cartridge has not passed its expiration date

Explanation

Fit testing evaluates whether a specific make, model, and size of tight-fitting respirator seals against the individual wearer's face. It is separate from exposure monitoring, cartridge inspection, and training documentation. A poor seal allows fibers to leak past the facepiece.