IICRC OCT Course 2025 - Practice Questions |\ |\ |\ |\ |\ |\ |\
WITH ANSWERS |\
The _______ is the technician's best instrument for detecting the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
presence and intensity of an odor. |\ |\ |\ |\ |\
Nose
Odor is a gas interpreted by the ______________ ________________.
|\ |\ |\ |\ |\ |\ |\ |\
Olfactory lobe |\
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 |\
_____________________ _______________ is a term used by some to |\ |\ |\ |\ |\ |\ |\ |\ |\
describe odors which people believe they smell, based on
|\ |\ |\ |\ |\ |\ |\ |\ |\
experiences, suggestions and past impressions. |\ |\ |\ |\
Psychological odors |\
The human sense that is capable of distinguishing odors at very
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
low concentrations is the _____________ ____________.
|\ |\ |\ |\ |\
Olfactory sense |\
An important property for a substance to have a detectable odor
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
is ______________ solubility.
|\ |\
water
___________________ is a condition where an individual becomes |\ |\ |\ |\ |\ |\ |\ |\
accustomed to an odor. |\ |\ |\
Aclamation
, Odor is most apparent when ________________ and
|\ |\ |\ |\ |\ |\ |\
__________________ are high. |\ |\
humidity ; temperature|\ |\
Most deodorizations usually begin with the removal of the
|\ |\ |\ |\ |\ |\ |\ |\ |\
_____________.
source
Cleaning the source area is the __________________ principle of
|\ |\ |\ |\ |\ |\ |\ |\ |\
odor control.
|\
2nd
________________________ is the third general principle in effective |\ |\ |\ |\ |\ |\ |\ |\
deodorization.
Penetration
___________________ is the fourth principle of odor control. |\ |\ |\ |\ |\ |\ |\
Sealing
A __________________ is a compound that "locks-in" vaporous odor
|\ |\ |\ |\ |\ |\ |\ |\ |\
molecules.
sealer
Oxidizing agents break down organic matter by adding
|\ |\ |\ |\ |\ |\ |\ |\
________________.
oxygen
Chlorine bleach and ozone gas are ___________________.
|\ |\ |\ |\ |\ |\
oxidizers
Most deodorants used in smoke odor removal contain a
|\ |\ |\ |\ |\ |\ |\ |\ |\
combination of ________________ and ____________ agents.
|\ |\ |\ |\ |\
masking ; pairing|\ |\
A _____________ _____________ combines with and changes a
|\ |\ |\ |\ |\ |\ |\ |\
malodorous substance to create a new odorless compound.
|\ |\ |\ |\ |\ |\ |\
WITH ANSWERS |\
The _______ is the technician's best instrument for detecting the
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\
presence and intensity of an odor. |\ |\ |\ |\ |\
Nose
Odor is a gas interpreted by the ______________ ________________.
|\ |\ |\ |\ |\ |\ |\ |\
Olfactory lobe |\
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 |\
_____________________ _______________ is a term used by some to |\ |\ |\ |\ |\ |\ |\ |\ |\
describe odors which people believe they smell, based on
|\ |\ |\ |\ |\ |\ |\ |\ |\
experiences, suggestions and past impressions. |\ |\ |\ |\
Psychological odors |\
The human sense that is capable of distinguishing odors at very
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
low concentrations is the _____________ ____________.
|\ |\ |\ |\ |\
Olfactory sense |\
An important property for a substance to have a detectable odor
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
is ______________ solubility.
|\ |\
water
___________________ is a condition where an individual becomes |\ |\ |\ |\ |\ |\ |\ |\
accustomed to an odor. |\ |\ |\
Aclamation
, Odor is most apparent when ________________ and
|\ |\ |\ |\ |\ |\ |\
__________________ are high. |\ |\
humidity ; temperature|\ |\
Most deodorizations usually begin with the removal of the
|\ |\ |\ |\ |\ |\ |\ |\ |\
_____________.
source
Cleaning the source area is the __________________ principle of
|\ |\ |\ |\ |\ |\ |\ |\ |\
odor control.
|\
2nd
________________________ is the third general principle in effective |\ |\ |\ |\ |\ |\ |\ |\
deodorization.
Penetration
___________________ is the fourth principle of odor control. |\ |\ |\ |\ |\ |\ |\
Sealing
A __________________ is a compound that "locks-in" vaporous odor
|\ |\ |\ |\ |\ |\ |\ |\ |\
molecules.
sealer
Oxidizing agents break down organic matter by adding
|\ |\ |\ |\ |\ |\ |\ |\
________________.
oxygen
Chlorine bleach and ozone gas are ___________________.
|\ |\ |\ |\ |\ |\
oxidizers
Most deodorants used in smoke odor removal contain a
|\ |\ |\ |\ |\ |\ |\ |\ |\
combination of ________________ and ____________ agents.
|\ |\ |\ |\ |\
masking ; pairing|\ |\
A _____________ _____________ combines with and changes a
|\ |\ |\ |\ |\ |\ |\ |\
malodorous substance to create a new odorless compound.
|\ |\ |\ |\ |\ |\ |\
