OREGON ATEGORY L FUMIGATION PEST CONTROL
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2027 INSTANT DOWNLOAD PDF
1. What is the primary purpose of fumigation in pest control?
A. Surface cleaning
B. Soil fertilization
C. Eradicating pests in enclosed spaces
D. Trapping insects
Rationale: Fumigation uses toxic gas to penetrate and kill pests
in sealed environments.
Correct Answer: C
2. Which property is essential for an effective fumigant?
A. High viscosity
B. Gas penetration ability
C. Solid form
D. Low toxicity to pests
Rationale: Fumigants must diffuse as gases to reach hidden
pests.
Correct Answer: B
3. Fumigants are most effective against pests in which stage?
,A. Eggs only
B. Adult only
C. All life stages
D. Larvae only
Rationale: Gas penetrates all developmental stages.
Correct Answer: C
4. Why must structures be sealed before fumigation?
A. To improve smell
B. To prevent gas leakage
C. To increase humidity
D. To allow airflow
Rationale: Sealing ensures lethal concentration is maintained.
Correct Answer: B
5. What is the most critical safety requirement before
fumigation?
A. Painting walls
B. Evacuation of occupants
C. Turning on fans
D. Adding water
Rationale: Humans must not be exposed to toxic gases.
Correct Answer: B
,6. What does a fumigant primarily act as?
A. Solid poison
B. Vapor-phase pesticide
C. Mechanical trap
D. Repellent
Rationale: Fumigants act in gaseous form.
Correct Answer: B
7. Which gas is commonly used in structural fumigation?
A. Oxygen
B. Sulfur dioxide
C. Sulfuryl fluoride
D. Carbon monoxide
Rationale: Sulfuryl fluoride is widely used for structural pests.
Correct Answer: C
8. What is aeration in fumigation?
A. Adding more gas
B. Removing fumigant gas after treatment
C. Heating the structure
D. Cooling the structure
Rationale: Aeration clears toxic gases after fumigation.
Correct Answer: B
, 9. What is a major hazard of fumigation?
A. Noise pollution
B. Fire resistance
C. Toxic gas exposure
D. Water contamination
Rationale: Fumigants are highly toxic to humans and animals.
Correct Answer: C
10. What is the function of a fumigation tarp?
A. Decoration
B. Heat insulation
C. Sealing structure
D. Pest attraction
Rationale: Tarps prevent gas escape.
Correct Answer: C
11–100 (Continued Exam Questions)
11. Which condition increases fumigant effectiveness?
A. Low temperature
B. High pest resistance
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2027 INSTANT DOWNLOAD PDF
1. What is the primary purpose of fumigation in pest control?
A. Surface cleaning
B. Soil fertilization
C. Eradicating pests in enclosed spaces
D. Trapping insects
Rationale: Fumigation uses toxic gas to penetrate and kill pests
in sealed environments.
Correct Answer: C
2. Which property is essential for an effective fumigant?
A. High viscosity
B. Gas penetration ability
C. Solid form
D. Low toxicity to pests
Rationale: Fumigants must diffuse as gases to reach hidden
pests.
Correct Answer: B
3. Fumigants are most effective against pests in which stage?
,A. Eggs only
B. Adult only
C. All life stages
D. Larvae only
Rationale: Gas penetrates all developmental stages.
Correct Answer: C
4. Why must structures be sealed before fumigation?
A. To improve smell
B. To prevent gas leakage
C. To increase humidity
D. To allow airflow
Rationale: Sealing ensures lethal concentration is maintained.
Correct Answer: B
5. What is the most critical safety requirement before
fumigation?
A. Painting walls
B. Evacuation of occupants
C. Turning on fans
D. Adding water
Rationale: Humans must not be exposed to toxic gases.
Correct Answer: B
,6. What does a fumigant primarily act as?
A. Solid poison
B. Vapor-phase pesticide
C. Mechanical trap
D. Repellent
Rationale: Fumigants act in gaseous form.
Correct Answer: B
7. Which gas is commonly used in structural fumigation?
A. Oxygen
B. Sulfur dioxide
C. Sulfuryl fluoride
D. Carbon monoxide
Rationale: Sulfuryl fluoride is widely used for structural pests.
Correct Answer: C
8. What is aeration in fumigation?
A. Adding more gas
B. Removing fumigant gas after treatment
C. Heating the structure
D. Cooling the structure
Rationale: Aeration clears toxic gases after fumigation.
Correct Answer: B
, 9. What is a major hazard of fumigation?
A. Noise pollution
B. Fire resistance
C. Toxic gas exposure
D. Water contamination
Rationale: Fumigants are highly toxic to humans and animals.
Correct Answer: C
10. What is the function of a fumigation tarp?
A. Decoration
B. Heat insulation
C. Sealing structure
D. Pest attraction
Rationale: Tarps prevent gas escape.
Correct Answer: C
11–100 (Continued Exam Questions)
11. Which condition increases fumigant effectiveness?
A. Low temperature
B. High pest resistance
