ASBESTOS ABATEMENT
WORKER PRACTICE EXAM
50 QUESTIONS
Question 1: Which description best matches asbestos?
Choices:
1) A synthetic polymer used only in roo�ng 2) A group of naturally occurring �brous silicate minerals 3) A form of �berglass made from recycled glass 4) An organic �ber produced from cellulose Correct Answer: A group of naturally occurring �brous silicate minerals Explanation: Asbestos refers to naturally occurring �brous silicate minerals. Their durable, heat-resistant �bers led to widespread use in building and industrial materials.Page 1
Question 2: Under the EPA Model Accreditation Plan, when is asbestos-containing
material considered friable?
Choices:
1) When it contains any detectable asbestos and is painted 2) When it becomes wet enough to bend without breaking 3) When it contains more than 1 percent asbestos and, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure 4) When it is installed on a pipe regardless of asbestos content Correct Answer: When it contains more than 1 percent asbestos and, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure Explanation: Friable ACM contains more than 1 percent asbestos and can be crumbled, pulverized, or reduced to powder by hand pressure when dry. Friability matters because damaged friable material can release �bers readily.Question 3: For OSHA asbestos construction requirements, which installed material is generally treated as presumed asbestos-containing material unless the presumption is rebutted?
Choices:
1) Thermal system insulation and surfacing material in buildings constructed no later than
2) Any gypsum wallboard installed after 2000 3) All wood �ooring installed before 1990 4) Any �berglass pipe insulation regardless of age Correct Answer: Thermal system insulation and surfacing material in buildings constructed no later than 1980 Page 2
Explanation: OSHA de�nes PACM as thermal system insulation and surfacing material found in buildings constructed no later than 1980, unless the employer or owner properly rebuts the presumption.Question 4: A crew is removing sprayed-on asbestos-containing �reproo�ng from structural members. How is this work classi�ed under OSHA?
Choices:
1) Class IV asbestos work 2) Class III asbestos work 3) Class II asbestos work 4) Class I asbestos work
Correct Answer: Class I asbestos work
Explanation: Class I asbestos work includes removal of thermal system insulation and surfacing ACM or PACM. Sprayed-on �reproo�ng is a surfacing material, so its removal is Class I work.Question 5: Workers are removing intact asbestos-containing �oor tile from a building. Which OSHA asbestos work class best �ts this activity?
Choices:
1) Class II 2) Class I 3) Class III 4) Class IV
Correct Answer: Class II
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