IICRC OCT Course 2026 Practice Questions Prep Pack
Latest Update 2026 | Questions & Solutions | Instant
Download PDF
1. In a scenario where a technician is dealing with a strong odor from smoke
damage, which method involving oxidizing agents would be most effective?
Sealing the area to contain the odor.
Using a fan to disperse the smoke odor.
Applying a fragrance to mask the smoke odor.
Using an oxidizing agent to break down the smoke particles by
adding oxygen.
2. Describe how ozone gas can affect certain materials over time.
Ozone gas enhances the durability of materials such as rubber and
plastic.
Ozone gas only affects organic materials and leaves synthetic
materials unharmed.
Ozone gas can cause degradation and deterioration of materials
like rubber, leading to loss of elasticity and structural integrity.
Ozone gas has no effect on materials and is safe for prolonged
exposure.
3. Why is it important to remove unprotected persons and pets from the area
during deodorization?
To allow for better odor detection.
To prevent exposure to potentially harmful chemicals or gases.
,To minimize noise during the treatment.
To ensure the deodorization process is faster.
,4. What is the term for odors that individuals perceive based on their previous
experiences and suggestions?
Natural odors
Chemical odors
Phantom odors
Synthetic odors
5. Why is it important to identify the source of environmental tobacco smoke
before attempting removal?
It is not important; any method will work.
It ensures that only air fresheners are used.
It helps in determining the cost of removal.
Identifying the source allows for targeted removal and prevents
recontamination.
6. If a technician encounters urine-saturated carpet padding during a cleanup,
what steps should they take to ensure effective odor removal?
They should ignore the padding and focus on the carpet only.
They should replace the padding and treat the carpet with
appropriate deodorizing agents.
They should only steam clean the carpet and leave the padding as is.
They should apply a deodorizing spray without replacing the padding.
7. If a technician encounters a persistent odor from animal urine in a home, what
should be their first step in addressing the issue?
Identify the source of the odor.
, Immediately apply a deodorizing agent.
Use a fan to circulate air in the room.
Seal the area to contain the smell.
8. Describe the primary responsibilities of the EPA regarding the regulation of
pesticides and disinfectants.
The EPA promotes the use of all chemicals without restrictions.
The EPA only monitors the effectiveness of pesticides after they are
used.
The EPA regulates the use and safety of pesticides and disinfectants
to protect human health and the environment.
The EPA is responsible for the marketing of pesticides and
disinfectants.
9. If a technician experiences an exposure incident while deodorizing a space
contaminated with biological materials, what should the employer prioritize
in their response?
Reassessing the deodorization methods used.
Conducting a thorough investigation of the incident.
Immediate medical evaluation and safety training.
Filing an insurance claim for the technician.
10. In a scenario where a technician is exposed to a strong odor while
performing deodorization, what strategy should they employ to mitigate
olfactory fatigue?
Increase the concentration of deodorizing agents used.
Ignore the odor and continue working without breaks.
Latest Update 2026 | Questions & Solutions | Instant
Download PDF
1. In a scenario where a technician is dealing with a strong odor from smoke
damage, which method involving oxidizing agents would be most effective?
Sealing the area to contain the odor.
Using a fan to disperse the smoke odor.
Applying a fragrance to mask the smoke odor.
Using an oxidizing agent to break down the smoke particles by
adding oxygen.
2. Describe how ozone gas can affect certain materials over time.
Ozone gas enhances the durability of materials such as rubber and
plastic.
Ozone gas only affects organic materials and leaves synthetic
materials unharmed.
Ozone gas can cause degradation and deterioration of materials
like rubber, leading to loss of elasticity and structural integrity.
Ozone gas has no effect on materials and is safe for prolonged
exposure.
3. Why is it important to remove unprotected persons and pets from the area
during deodorization?
To allow for better odor detection.
To prevent exposure to potentially harmful chemicals or gases.
,To minimize noise during the treatment.
To ensure the deodorization process is faster.
,4. What is the term for odors that individuals perceive based on their previous
experiences and suggestions?
Natural odors
Chemical odors
Phantom odors
Synthetic odors
5. Why is it important to identify the source of environmental tobacco smoke
before attempting removal?
It is not important; any method will work.
It ensures that only air fresheners are used.
It helps in determining the cost of removal.
Identifying the source allows for targeted removal and prevents
recontamination.
6. If a technician encounters urine-saturated carpet padding during a cleanup,
what steps should they take to ensure effective odor removal?
They should ignore the padding and focus on the carpet only.
They should replace the padding and treat the carpet with
appropriate deodorizing agents.
They should only steam clean the carpet and leave the padding as is.
They should apply a deodorizing spray without replacing the padding.
7. If a technician encounters a persistent odor from animal urine in a home, what
should be their first step in addressing the issue?
Identify the source of the odor.
, Immediately apply a deodorizing agent.
Use a fan to circulate air in the room.
Seal the area to contain the smell.
8. Describe the primary responsibilities of the EPA regarding the regulation of
pesticides and disinfectants.
The EPA promotes the use of all chemicals without restrictions.
The EPA only monitors the effectiveness of pesticides after they are
used.
The EPA regulates the use and safety of pesticides and disinfectants
to protect human health and the environment.
The EPA is responsible for the marketing of pesticides and
disinfectants.
9. If a technician experiences an exposure incident while deodorizing a space
contaminated with biological materials, what should the employer prioritize
in their response?
Reassessing the deodorization methods used.
Conducting a thorough investigation of the incident.
Immediate medical evaluation and safety training.
Filing an insurance claim for the technician.
10. In a scenario where a technician is exposed to a strong odor while
performing deodorization, what strategy should they employ to mitigate
olfactory fatigue?
Increase the concentration of deodorizing agents used.
Ignore the odor and continue working without breaks.
