CSST Final Exam Guide: Sample Questions, Topics, and Format

age 1 of 40




CSST FINAL EXAM STUDY GUIDE 2025/2026

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Why was asbestos added to construction materials ?

.....Answer.......It provided: insulation properties, strength and

durability from weathering, made spray on products easier to

apply, and does not conduct electricity.


What are the three types of asbestos and their associated

species? .....Answer.......Chrysotile : Serpentine , Amosite and

Crocidolites : amphiboles.


What is the predominant color and structure of Chrysotile

asbestos ? .....Answer.......white , long , curly , hollow

,age 2 of 40




What is the predominant color and structure of Amosite asbestos

? .....Answer.......brown / tan ; long and straight


What is the predominant color and structure of Crocidolite ?

.....Answer.......blue ; long and straight


What is the definition of a Surfacing material ? .....Answer.......is

a sprayed on troweled on or otherwise applied to structural

surfaces EX: acoustic / decorative ceilings, fire proofing,

textured paints and plasters.


what is the definition of Thermal Systems Insulation?

.....Answer.......applied to pipes, fittings, tanks, other structural,

components etc. , to prevent heat loss or gain. EX: pipe

insulation, elbow mud, block insulation, air cell, asbestos paper

wrap, preformed halves, magnesium silica, etc

,age 3 of 40




what is the definition of Miscellaneous products:

.....Answer.......material that is not TSI or surfacing but applied to

structural components.


Define Friable vs non friable. .....Answer.......Friable asbestos will

crumble , pulverize or otherwise release dust by applying hand

pressure.


What agency does not use the term friable ? why?

.....Answer.......OSHA - because tools that are used by workers

can easily make non friable materials friable.


Primary type of asbestos used in the U.S ?

.....Answer.......Chrysotile.


List three building materials / locations where ACM is likely to

be found .....Answer.......fire doors, fume hoods, felt under roofs

or siding, amosite sheeting, kiln bricks and cement, lab

, age 4 of 40




equipment, fire safety and equipment, auditorium curtains,

gaskets, vibration joints, etc.


What are the 3 major illnesses related to asbestos exposures ?

.....Answer.......Asbestosis, Lung Cancer, Mesothelioma.


What is a latency period ? What is the latency period for

asbestos related illnesses ? .....Answer.......the time between

exposure and symptoms / sign of illness. 10-40 years.


Why does cigarette smoking increase chances of getting an

asbestos related illness ? .....Answer.......Paralyzes Cillia in lung.


What asbestos related disease normally appears only after

long, large, occupational exposure to asbestos ?

.....Answer.......Asbestosis