Asbestos Hazards in Construction
62 flashcards covering Asbestos Hazards in Construction for the OSHA OSHA 10/30 Construction section.
Asbestos hazards in construction cover the dangers of exposure to asbestos fibers, found in materials like insulation and flooring from older buildings, leading to health risks such as asbestosis and lung cancer. This topic is defined by OSHA regulations, specifically 29 CFR 1926.1101, which outlines requirements for identifying, handling, and controlling asbestos in construction environments to protect workers.
On OSHA 10/30 Construction exams, questions typically appear as multiple-choice scenarios testing recognition of asbestos-containing materials, proper personal protective equipment, and safe work practices. A common trap is overlooking the need for air monitoring or assuming visual inspection alone is sufficient, which can lead to undetected exposure.
In practice, workers often miss the importance of documenting all asbestos-related activities for legal and health records.
Terms (62)
- 01
What is the definition of asbestos in construction standards?
Asbestos is a group of minerals that includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, and actinolite asbestos (29 CFR 1926.1101(b)).
- 02
Under 29 CFR 1926.1101, what is the permissible exposure limit for asbestos?
The permissible exposure limit is 0.1 fiber per cubic centimeter of air as an eight-hour time-weighted average (29 CFR 1926.1101(c)(1)).
- 03
How often must employers monitor employee exposure to asbestos?
Employers must perform initial monitoring and then periodically as necessary to an employee's exposure, including when there has been a change in process, controls, or personnel that may result in new or additional exposures (29 CFR 1926.1101(d)(2)).
- 04
What methods must be used to control asbestos exposure in construction?
Employers must use engineering controls and work practices to reduce and maintain employee exposure to or below the permissible exposure limit, with respirators used when necessary (29 CFR 1926.1101(f)(1)).
- 05
Under 29 CFR 1926.1101, what training is required for employees who work with asbestos?
Employees must receive training that includes hazards of asbestos, appropriate work practices, and the use of personal protective equipment, provided prior to job assignment and at least annually (29 CFR 1926.1101(k)(9)).
- 06
What is a competent person in the context of asbestos work?
A competent person is one who is capable of identifying existing asbestos hazards and has the authority to take prompt corrective measures, as defined in the standard (29 CFR 1926.1101(b)).
- 07
What respiratory protection is required for Class I asbestos operations?
Respirators must be used that are at least as protective as a high-efficiency particulate air (HEPA) filter respirator, selected based on the exposure level (29 CFR 1926.1101(h)(3)).
- 08
How must asbestos-containing materials be handled during removal?
Asbestos-containing materials must be handled using wet methods and promptly placed in labeled, leak-tight containers to prevent release of fibers (29 CFR 1926.1101(g)(1)).
- 09
Under 29 CFR 1926.1101, what signs are required in regulated areas for asbestos?
Signs must be posted at the entrance to regulated areas stating 'DANGER ASBESTOS, CANCER AND LUNG DISEASE HAZARD, AUTHORIZED PERSONNEL ONLY' or equivalent (29 CFR 1926.1101(k)(7)).
- 10
What hygiene facilities are required for workers exposed to asbestos?
Employers must provide change rooms, showers, and lunch areas that prevent contamination, including separate storage for protective clothing and street clothes (29 CFR 1926.1101(i)).
- 11
What is the requirement for medical surveillance for asbestos-exposed employees?
Employees exposed at or above the action level for 30 or more days per year must receive medical examinations, including a history, physical exam, and chest X-ray, at no cost to the employee (29 CFR 1926.1101(l)(1)).
- 12
Under 29 CFR 1926.1101, what protective clothing must be worn by employees handling asbestos?
Employees must wear protective clothing, such as coveralls or similar full-body coverings, to prevent contamination (29 CFR 1926.1101(i)(1)).
- 13
How often must records of asbestos exposure monitoring be maintained?
Records must be maintained for at least 30 years (29 CFR 1926.1101(m)(1)).
- 14
What is Class I asbestos work?
Class I asbestos work is the removal of thermal system insulation or surfacing material that is asbestos-containing (29 CFR 1926.1101(b)).
- 15
Under 29 CFR 1926.1101, what must be done before beginning an asbestos abatement project?
A competent person must perform an exposure assessment to determine expected exposure levels (29 CFR 1926.1101(d)(1)).
- 16
What communication is required for asbestos hazards to employees?
Employers must inform employees of the presence, location, and quantity of asbestos through labels, signs, and material safety data sheets (29 CFR 1926.1101(k)(1)).
- 17
In a scenario where a worker is exposed to airborne asbestos, what immediate action is required?
The worker must leave the regulated area and use appropriate decontamination procedures, with the employer ensuring exposure is assessed and controlled (29 CFR 1926.1101(e)).
- 18
What housekeeping practices are required for areas with asbestos contamination?
Surfaces must be cleaned using HEPA-filtered vacuuming or wet cleaning methods, and waste must be properly disposed (29 CFR 1926.1101(o)).
- 19
Under 29 CFR 1926.1101, what is the action level for asbestos exposure?
The action level is an airborne concentration of 0.1 fiber per cubic centimeter of air calculated as an eight-hour time-weighted average (29 CFR 1926.1101(b)).
- 20
What procedures must be followed for waste disposal of asbestos materials?
Asbestos waste must be placed in leak-tight containers, labeled, and disposed of at an EPA-approved site (29 CFR 1926.1101(l)(4)).
- 21
How must employers ensure compliance with asbestos standards during renovation?
Employers must assume materials contain asbestos if not tested and follow appropriate controls (29 CFR 1926.1101(k)(5)).
- 22
In a scenario involving potential asbestos disturbance, what should the supervisor do first?
The supervisor must ensure a competent person assesses the area and implements controls before work begins (29 CFR 1926.1101(d)).
- 23
What is required for the selection of respirators in asbestos work?
Respirators must be selected based on the results of exposure assessments and provide adequate protection (29 CFR 1926.1101(h)).
- 24
Under 29 CFR 1926.1101, what employee rights apply to asbestos exposure records?
Employees have the right to access their exposure monitoring and medical records (29 CFR 1926.1101(m)).
- 25
What is the definition of a regulated area for asbestos work?
A regulated area is an area where airborne concentrations of asbestos exceed or can reasonably be expected to exceed the permissible exposure limit (29 CFR 1926.1101(e)).
- 26
How often must asbestos awareness training be provided to maintenance workers?
Training must be provided prior to initial assignment and at least annually for workers who may be exposed (29 CFR 1926.1101(k)(9)).
- 27
In a scenario where asbestos fibers are released during drilling, what response is needed?
Stop work immediately, isolate the area, and notify a competent person to assess and control the exposure (29 CFR 1926.1101(g)).
- 28
What warning labels are required on asbestos-containing materials?
Containers of asbestos must be labeled with 'DANGER CONTAINS ASBESTOS FIBERS, AVOID CREATING DUST, CANCER AND LUNG DISEASE HAZARD' or similar (29 CFR 1926.1101(k)(8)).
- 29
Under 29 CFR 1926.1101, what medical exams are required for asbestos workers?
Exams must include a medical and work history, physical examination, and pulmonary function test, provided at specified intervals (29 CFR 1926.1101(l)).
- 30
What engineering controls are preferred for reducing asbestos exposure?
Local exhaust ventilation and enclosure of the operation are preferred to minimize airborne fibers (29 CFR 1926.1101(f)).
- 31
What is Class II asbestos work?
Class II asbestos work is the removal of asbestos-containing materials that are not thermal system insulation, such as wallboard (29 CFR 1926.1101(b)).
- 32
In a scenario of accidental asbestos release, what decontamination is required?
Workers must use designated decontamination procedures, including removing contaminated clothing and showering if facilities are available (29 CFR 1926.1101(i)).
- 33
How must asbestos-containing flooring be removed?
It must be removed using methods that minimize fiber release, such as wet methods and HEPA vacuums (29 CFR 1926.1101(g)).
- 34
Under 29 CFR 1926.1101, what records must be kept for training?
Records of employee training, including dates and contents, must be maintained (29 CFR 1926.1101(m)).
- 35
What personal protective equipment is mandatory for asbestos removal?
At minimum, respirators, protective clothing, and eye protection as appropriate for the task (29 CFR 1926.1101(h) and (i)).
- 36
What is the role of a competent person in asbestos projects?
The competent person supervises all asbestos work, ensures compliance, and provides training as needed (29 CFR 1926.1101(b)).
- 37
In a construction site with suspected asbestos, what initial steps are required?
Conduct an inspection and sampling to identify asbestos presence before disturbing materials (29 CFR 1926.1101(k)(5)).
- 38
Under 29 CFR 1926.1101, what notification is needed for large-scale asbestos projects?
Employers must notify OSHA and other required entities for projects involving more than a specified amount, as per the standard (29 CFR 1926.1101(a)).
- 39
What practices are prohibited when working with asbestos?
High-speed abrasive disc saws that are not equipped with point-of-cut ventilator or HEPA vacuum are prohibited (29 CFR 1926.1101(g)(3)).
- 40
How must employee exposure to asbestos be assessed?
Through air monitoring to measure fiber concentrations in the breathing zone (29 CFR 1926.1101(d)).
- 41
What is Class III asbestos work?
Class III asbestos work is repair and maintenance operations that may disturb asbestos-containing materials (29 CFR 1926.1101(b)).
- 42
In a scenario where a worker shows signs of asbestos-related illness, what action is taken?
The employer must provide medical surveillance and remove the worker from exposure if recommended by a physician (29 CFR 1926.1101(l)).
- 43
Under 29 CFR 1926.1101, what must be included in the written compliance program?
The program must detail work practices, engineering controls, and protective measures for asbestos operations (29 CFR 1926.1101(f)(3)).
- 44
What ventilation requirements apply to asbestos removal areas?
Negative pressure enclosures must be used for Class I work to contain fibers (29 CFR 1926.1101(g)).
- 45
How often must respirators be inspected for asbestos use?
Respirators must be inspected before each use and during cleaning (29 CFR 1926.1101(h)).
- 46
What is Class IV asbestos work?
Class IV asbestos work is maintenance and custodial activities that involve minor clean-up (29 CFR 1926.1101(b)).
- 47
Under 29 CFR 1926.1101, what emergency procedures are needed for asbestos?
Employers must have procedures to handle uncontrolled releases, including evacuation and cleanup (29 CFR 1926.1101(e)).
- 48
In a scenario of asbestos pipe insulation removal, what controls are required?
Use of glove bags or other containment methods to prevent fiber release (29 CFR 1926.1101(g)).
- 49
What labeling is required for asbestos waste containers?
Containers must be labeled with warnings about asbestos hazards (29 CFR 1926.1101(k)(8)).
- 50
How must asbestos be transported after removal?
In sealed, labeled containers to prevent contamination during transport (29 CFR 1926.1101(l)(4)).
- 51
Under 29 CFR 1926.1101, what qualifications are needed for asbestos supervisors?
Supervisors must be competent persons with specific training in asbestos hazards (29 CFR 1926.1101(b)).
- 52
What recordkeeping is required for medical exams of asbestos workers?
Records must be maintained for the duration of employment plus 30 years (29 CFR 1926.1101(m)).
- 53
In a construction project with asbestos present, what access restrictions apply?
Only authorized personnel may enter regulated areas (29 CFR 1926.1101(e)).
- 54
What specific work practices are required for roofing with asbestos?
Use of wet methods and HEPA vacuums for removal (29 CFR 1926.1101(g)).
- 55
Under 29 CFR 1926.1101, what must be done if exposure exceeds the PEL?
Implement additional controls and provide medical surveillance (29 CFR 1926.1101(f)).
- 56
How must asbestos-containing debris be cleaned up?
Using HEPA-filtered equipment and wet methods to minimize dust (29 CFR 1926.1101(o)).
- 57
What is the purpose of negative pressure in asbestos enclosures?
To prevent the escape of asbestos fibers into uncontaminated areas (29 CFR 1926.1101(g)).
- 58
In a scenario where asbestos is identified in a wall, what removal method is used?
Enclosure or removal with appropriate controls based on the class of work (29 CFR 1926.1101(g)).
- 59
Under 29 CFR 1926.1101, what employee information must be provided about hazards?
Details on health effects, safe work practices, and emergency procedures (29 CFR 1926.1101(k)).
- 60
What verification is needed after asbestos cleanup?
Visual inspection and clearance air monitoring to ensure fiber levels are below limits (29 CFR 1926.1101(p)).
- 61
How must protective clothing be handled after asbestos work?
It must be collected and disposed of as asbestos waste (29 CFR 1926.1101(i)).
- 62
What training topics must be covered for asbestos workers?
Recognition of asbestos, health effects, and proper use of controls (29 CFR 1926.1101(k)(9)).