IICRC OCT Course 2023 - Practice Questions
Study online at https://quizlet.com/_ct3xyq
1. The _______ is the technician's best instrument for detecting the presence
and intensity of an odor.: Nose
2. Odor is a gas interpreted by the ______________ ________________.: Olfactory lobe
3. The "pure" sensation of smell that is transmitted from the nose to the
olfactory lobe by way of the olfactory nerve is called ________ _______.: real odor
4. _____________________ _______________ is a term used by some to describe odors
which people believe they smell, based on experiences, suggestions and past
impressions.: Psychological odors
5. The human sense that is capable of distinguishing odors at very low concen-
trations is the _____________ ____________.: Olfactory sense
6. An important property for a substance to have a detectable odor is
______________ solubility.: water
7. ___________________ is a condition where an individual becomes accustomed
to an odor.: Aclamation
8. Odor is most apparent when ________________ and __________________ are high.-
: humidity ; temperature
9. Most deodorizations usually begin with the removal of the _____________.: -
source
10. Cleaning the source area is the __________________ principle of odor control.-
: 2nd
11. ________________________ is the third general principle in effective deodoriza-
tion.: Penetration
12. ___________________ is the fourth principle of odor control.: Sealing
13. A __________________ is a compound that "locks-in" vaporous odor mole-
cules.: sealer
14. Oxidizing agents break down organic matter by adding ________________.: -
oxygen
15. Chlorine bleach and ozone gas are ___________________.: oxidizers
16. Most deodorants used in smoke odor removal contain a combination of
________________ and ____________ agents.: masking ; pairing
17. A _____________ _____________ combines with and changes a malodorous sub-
stance to create a new odorless compound.: pairing agent
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, IICRC OCT Course 2023 - Practice Questions
Study online at https://quizlet.com/_ct3xyq
18. ________________ is a method of disguising a malodor with a stronger more
pleasant odor.: Masking
19. Oils, gels or solid materials impregnated with fragrances to mask odors
work on the ____________-__________ principle.: time-released
20. The process of enzymes breaking down an odor causing organic material
(such as milk, eggs, fish or pet odors) is called ___________________.: digestion
21. A micron is a unit of measurement used to describe ________________ or
____________________.: particle ; droplets
22. Damage to moisture-sensitive materials is a concern when using
_______________________________________________.: high volume wet foggers
23. A ULV fogger is used to cold-fog ___________________-based deodorants.: water
24. A ____________ fogger is specified primarily for use in the application of water
based formulations where small deodorant droplets are desired that range
from 8-15 microns.: ULV
25. A _____________ ________________ is a device that generates heat to produce
petroleum-based deodorant droplets ranging in size between 0.5 to 2 mi-
crons.: thermal fogger
26. The use of thermal fogging in an odor intense environment can best be
described as an odor modification or __________________ treatment.: counteraction
27. ______________ is an oxidizing gas with the chemical symbol 03.: Ozone
28. An electrically powered device used to produce an oxidizing odor-control
gas is called an ________________ ___________________.: ozone generator
29. Ozone gas is ____________________ than air.: heavier
30. Plants and natural (latex) rubber may be damaged by prolonged exposure
to _______________.: ozone gas
31. Coughing, sneezing, nose bleeding and severe eye irritation are symptoms
of exposure to excessive _____________________ gas.: ozone
32. ______________ ___________ and _______ _____________ may prove useful to evac-
uate or dilute malodors or toxic gases. An activated charcoal filter can adsorb
odors and purify the air.: Exhaust fans ; air scrubbers
33. An activated charcoal filter can _______ odors and purify the air.: adsorb
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Study online at https://quizlet.com/_ct3xyq
1. The _______ is the technician's best instrument for detecting the presence
and intensity of an odor.: Nose
2. Odor is a gas interpreted by the ______________ ________________.: Olfactory lobe
3. The "pure" sensation of smell that is transmitted from the nose to the
olfactory lobe by way of the olfactory nerve is called ________ _______.: real odor
4. _____________________ _______________ is a term used by some to describe odors
which people believe they smell, based on experiences, suggestions and past
impressions.: Psychological odors
5. The human sense that is capable of distinguishing odors at very low concen-
trations is the _____________ ____________.: Olfactory sense
6. An important property for a substance to have a detectable odor is
______________ solubility.: water
7. ___________________ is a condition where an individual becomes accustomed
to an odor.: Aclamation
8. Odor is most apparent when ________________ and __________________ are high.-
: humidity ; temperature
9. Most deodorizations usually begin with the removal of the _____________.: -
source
10. Cleaning the source area is the __________________ principle of odor control.-
: 2nd
11. ________________________ is the third general principle in effective deodoriza-
tion.: Penetration
12. ___________________ is the fourth principle of odor control.: Sealing
13. A __________________ is a compound that "locks-in" vaporous odor mole-
cules.: sealer
14. Oxidizing agents break down organic matter by adding ________________.: -
oxygen
15. Chlorine bleach and ozone gas are ___________________.: oxidizers
16. Most deodorants used in smoke odor removal contain a combination of
________________ and ____________ agents.: masking ; pairing
17. A _____________ _____________ combines with and changes a malodorous sub-
stance to create a new odorless compound.: pairing agent
1/7
, IICRC OCT Course 2023 - Practice Questions
Study online at https://quizlet.com/_ct3xyq
18. ________________ is a method of disguising a malodor with a stronger more
pleasant odor.: Masking
19. Oils, gels or solid materials impregnated with fragrances to mask odors
work on the ____________-__________ principle.: time-released
20. The process of enzymes breaking down an odor causing organic material
(such as milk, eggs, fish or pet odors) is called ___________________.: digestion
21. A micron is a unit of measurement used to describe ________________ or
____________________.: particle ; droplets
22. Damage to moisture-sensitive materials is a concern when using
_______________________________________________.: high volume wet foggers
23. A ULV fogger is used to cold-fog ___________________-based deodorants.: water
24. A ____________ fogger is specified primarily for use in the application of water
based formulations where small deodorant droplets are desired that range
from 8-15 microns.: ULV
25. A _____________ ________________ is a device that generates heat to produce
petroleum-based deodorant droplets ranging in size between 0.5 to 2 mi-
crons.: thermal fogger
26. The use of thermal fogging in an odor intense environment can best be
described as an odor modification or __________________ treatment.: counteraction
27. ______________ is an oxidizing gas with the chemical symbol 03.: Ozone
28. An electrically powered device used to produce an oxidizing odor-control
gas is called an ________________ ___________________.: ozone generator
29. Ozone gas is ____________________ than air.: heavier
30. Plants and natural (latex) rubber may be damaged by prolonged exposure
to _______________.: ozone gas
31. Coughing, sneezing, nose bleeding and severe eye irritation are symptoms
of exposure to excessive _____________________ gas.: ozone
32. ______________ ___________ and _______ _____________ may prove useful to evac-
uate or dilute malodors or toxic gases. An activated charcoal filter can adsorb
odors and purify the air.: Exhaust fans ; air scrubbers
33. An activated charcoal filter can _______ odors and purify the air.: adsorb
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