100 Questions
Which of the following is a potential source of airborne asbestos fibers in buildings?
Manufacturing equipment malfunctions
Which of the following diseases is associated with exposure to asbestos?
Lung cancer
What is the relationship between exposure level and health risk for asbestos-related diseases?
The risk decreases with a decrease in total asbestos dose
What is the potential health risk when combining smoking with occupational exposure to asbestos?
The risk of lung cancer increases
Why is avoiding unnecessary exposure to asbestos prudent?
Because asbestos is dangerous
Which organization is evaluating the effect of lowering the 8-hour standard for asbestos to protect workers against cancer?
OSHA
Which component of the ACM survey involves inspecting materials throughout the building to identify those that may contain asbestos?
Sampling suspect materials
Who is ultimately responsible for asbestos-related problems in buildings?
Asbestos program manager
What is the purpose of the ACM survey?
To determine if ACM is present in a building
Why is thorough planning essential for the ACM survey?
To provide accurate and reliable information
Which of the following materials is NOT addressed by the Asbestos-in-Schools rule?
Insulating cement
According to the Asbestos-in-Schools rule, what must be done if friable materials are assumed to contain asbestos?
All affected parties must be notified
Which of the following is considered surfacing material according to the text?
ACM sprayed on ducts
What is the purpose of the ACM survey?
To identify materials that may contain asbestos
Which of the following materials may be covered with a protective jacket according to the text?
Chalky mixture of magnesia and asbestos
During the initial cleaning, maintenance and custodial personnel should wear a half-face respirator with disposable cartridge filters or a more substantial respirator. When should they wear the respirator?
During the initial cleaning and whenever they come in contact with ACM
What should custodial workers use to clean carpets throughout the building?
HEPA-filtered vacuum cleaner
How should custodial staff discard vacuum bags and filters after cleaning curtains and books?
In sealed plastic bags according to EPA regulations
What should custodial staff use to mop noncarpeted floors?
Wet mop
What should custodial staff do with cloths and mop heads after wiping horizontal surfaces?
Discard them in sealed plastic bags according to EPA regulations
Which of the following determines the need for and timing of additional action for asbestos-containing material (ACM)?
The likelihood of fiber release
When should abatement of ACM be scheduled?
When ACM has a high potential for future fiber release
What is the only permanent solution for dealing with ACM?
Removing the ACM
In what circumstances should enclosure and encapsulation be implemented?
When ACM is in poor condition
What determines the abatement method for ACM?
The nature and location of the material
Which method is the most sensitive and asbestos-specific instrument for counting fibers in air samples?
Analytical transmission electron microscope (TEM)
What is a limitation of using air monitoring as a primary assessment tool for asbestos levels in buildings?
It is unable to provide information on future conditions
What is the cost range per sample for TEM analysis of asbestos fibers?
$200 to $600
What role does air monitoring play in asbestos abatement projects?
Determining when the abatement project is complete
What factors are used to determine the need for and timing of additional action for asbestos-containing material (ACM)?
Current condition of the ACM and potential for future disturbance, damage, or erosion
Which type of asbestos-containing material (ACM) typically presents a more localized fiber release problem than surfacing material?
Insulated pipes
When should damaged pipe and boiler insulation be repaired or replaced?
During major renovation
What is the appropriate method for removing extensively damaged or deteriorated pipe and boiler insulation?
Cutting and stripping the insulation
What is the condition of pipe and boiler insulation that does not require further action?
Intact insulation
What precautionary measures should be taken when removing pipe and boiler insulation?
Worker protection measures similar to removal of surfacing materials
According to the text, what should be done with wet mopheads and cloths used for cleaning horizontal surfaces in the work area?
They should be discarded in sealed plastic bags and treated as asbestos-contaminated waste.
According to the text, what is the recommended method for attaching plastic sheets to walls for containment?
Using a better attachment system such as stapling and taping sheets to furring strips fastened to walls
According to the text, what is the purpose of air locks and worker decontamination facilities with showers in asbestos abatement projects?
To allow workers to clean themselves and remove asbestos fibers before leaving the work area
According to the text, what should be done with all return air vents during asbestos abatement?
They should be sealed to prevent asbestos contamination of the airhandling system.
According to the text, what is the recommended number of cleanings for surfaces in the work area during asbestos abatement?
Two cleanings, with the second cleaning after at least 24 hours when suspended fibers have settled, provide better assurance of fiber reduction than a single cleaning.
Which type of respirator may be required when using solvent-based sealants?
Supplied air (Type C) respirator
What is the recommended method for removing pipe insulation?
Use containment bags instead of barriers
What should be used to seal containment bags to the pipe insulation?
Duct tape
What happens to duct tape when exposed to high temperatures?
It becomes brittle
What is the purpose of using encapsulant as a temporary measure?
To provide a temporary barrier
What is the primary test for releasing the contractor in an asbestos abatement project?
Visual inspection
When should air testing be conducted in an asbestos abatement project?
After the visual inspection
What is the purpose of using negative air pressure ventilation in asbestos abatement projects?
To capture asbestos fibers
What is the importance of doing the job right the first time in an asbestos abatement project?
To increase the project's likelihood of success
When should tests be performed to determine if an asbestos abatement project has been conducted properly and the work site adequately cleaned?
After the project
Which of the following is NOT a recommended quality control check for an asbestos analysis?
Using a second laboratory to spot-check the accuracy of results
What is the purpose of assigning responsibility for security of the samples to specific persons at each stage of the analysis?
To ensure the samples are not tampered with
What is the primary purpose of documenting each step in the passage of the sample from the field to the laboratory?
To maintain a chain-of-custody
What should the building owner do with the test results and records documenting the testing process?
Keep them on file for future reference
What is the recommended number of cleanings for surfaces in the work area during asbestos abatement?
1
Which of the following materials has been used in the construction industry since 1910?
Portland cement
What is the density of chrysotile asbestos?
0.0026 ng/µm
What is the recommended number of cleanings for surfaces in the work area during asbestos abatement?
3
Which material is commonly used as a binder/sizing in asbestos-containing compounds?
Asphalt
What is the potential health risk when combining smoking with occupational exposure to asbestos?
Increased risk of cancer
According to the text, what must be done with friable asbestos materials before any wrecking or dismantling that would break up the materials or preclude access to the materials for subsequent removal?
They must be removed from the facility
What is the requirement for adequately wetting friable asbestos materials during cutting or disjointing operations when taking out a facility component covered or coated with friable asbestos materials?
They must be wetted with a sufficient amount of water
What is the alternative to wetting friable asbestos materials during stripping from facility components if wetting would unavoidably damage equipment?
Using a local exhaust ventilation and collection system
What must be done with friable asbestos materials that have been removed or stripped before they are collected for disposal?
They must be adequately wetted
What is the requirement for the temperature at the point of wetting when it is below 0ºC (32°F)?
Comply with the requirements of paragraphs (d) and (e) of this section
According to the text, what are the requirements for the warning signs at an asbestos waste disposal site?
The signs must be displayed at all entrances and at intervals of 330 ft or less along the property line of the site.
What must the warning signs at an asbestos waste disposal site display?
Legend Notation Asbestos Waste Disposal Site. Breathing Asbestos is Hazardous to Your Health.
What are the requirements for the size and format of the warning signs at an asbestos waste disposal site?
The signs must be in an upright format with dimensions of 51 cm x 36 cm (20” x 14”).
What must be done to deter access by the general public to the perimeter of an asbestos disposal site?
The perimeter must be fenced.
What are the acceptable methods for covering the waste material at an active waste disposal site?
A resinous or petroleum-based dust suppression agent.
According to the text, what must an employer provide for employees exposed to airborne concentrations of asbestos fibers?
Special clothing
What should an employer provide for employees working regularly at a fixed place of employment exposed to airborne concentrations of asbestos fibers?
Change rooms
How many separate lockers or containers should the employer provide for each employee to prevent contamination of their street clothes from their work clothes?
Two
What should be done to prevent the release of airborne asbestos fibers when laundering asbestos-contaminated clothing?
Launder the clothing to prevent the release of airborne asbestos fibers
What is the requirement for the temperature at the point of wetting when laundering asbestos-contaminated clothing?
Between 10ºC (50°F) and 20ºC (68°F)
Which of the following is a potential cause of deterioration or damage to asbestos-containing material?
Accidental or deliberate physical contact
What is an indicator of poor condition of asbestos-containing material?
Indentations or cracking
What can result from deterioration of asbestos-containing material?
All of the above
What is a potential source of water damage to asbestos-containing material?
Plumbing leaks
What should be done if the coated surface of asbestos-containing material moves or gives when slight hand pressure is applied?
Wet-wipe the surface
Which type of ceiling may introduce vibrations to a school or office building?
Suspended Lay-In Panels
What type of material should be removed or repositioned if it is pulled across asbestos-containing material?
Both curtains and expandable partitions
What type of lighting is present in the room being evaluated?
Both recessed and mounted
What type of floor should be evaluated in the room?
All of the above
What type of material should custodial staff use to mop noncarpeted floors?
Mild detergent solution
According to the text, what is the purpose of a negative pressure system in asbestos abatement projects?
To create a pressure differential that prevents the spread of asbestos fibers
What is the recommended method to test the performance and direction of air flow in a negative pressure system?
All of the above
What type of instrument is commonly used to measure the static pressure differential across the barrier in a negative pressure system?
Magnehelic gauge
What is the purpose of patching the hole in the plastic barrier after measuring the static pressure differential?
To maintain the integrity of the barrier
What is the recommended scale range for a Magnehelic gauge used to measure the static pressure differential across the barrier?
0 to 0.50 inch of H2O
Which of the following is a requirement for contractors to be qualified for asbestos abatement projects?
Possess State certifications for the performance of asbestos abatement projects
What should be done with the filters of the exhaust units after the area has been decontaminated?
They should be disposed of properly
Which organization has developed contract specifications for abatement projects?
Association of the WaIl/Ceiling Industries—International, Inc.
What should contractors be prepared to make available for viewing at the job site?
A copy of OSHA regulations and EPA regulations
What should be done with the remaining barriers between contaminated and clean areas after the area has been decontaminated?
They should be disposed of as contaminated waste
Which method should be used to analyze the sample if high levels of organic materials are suspected or found?
PCM
What is the formula to compute the means of the log transformed data for inside samples and outside samples?
$y1 = \text{average of log concentrations inside the work site}$ $y2 = \text{average of log concentrations outside the work site}$
What is the formula to compute the value of S?
$S = \sqrt{\frac{(\Sigma(y1j-y1)^2 + \Sigma(y2j-y2)^2)}{(n1+n2-2)}}$
What is the formula to compute the ratio for the TEM method?
$\text{Ratio} = \frac{y1}{y2}$
What is the formula to compute T for the TEM method?
$T = \frac{y1 - y2}{S}$
Test your knowledge about sources of airborne asbestos fibers in buildings, diseases associated with asbestos exposure, the relationship between exposure level and health risk for asbestos-related diseases, the health risk when combining smoking with occupational exposure to asbestos, and why avoiding unnecessary exposure to asbestos is important. Also, learn about the organization evaluating the effect of lowering the 8-hour standard for asbestos to protect workers against cancer.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
