Delaware Category 8 — Public Health Pest Control
Examination Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. Which pest is most commonly associated with spreading plague in
public health settings?
A. Housefly
B. Rat flea
C. Mosquito
D. Bed bug
Answer: B
Rationale: Rat fleas transmit Yersinia pestis, the bacterium that
causes plague.
2. The primary disease transmitted by Anopheles mosquitoes is:
A. Dengue fever
B. Malaria
C. Yellow fever
,D. Zika virus
Answer: B
Rationale: Anopheles mosquitoes are the primary vectors of malaria
parasites.
3. Which insect is known for transmitting typhoid fever mechanically?
A. Housefly
B. Cockroach
C. Flea
D. Tick
Answer: A
Rationale: Houseflies contaminate food with pathogens through their
body surfaces and feces.
4. What is the main reason rodents are considered public health
pests?
A. Crop destruction
B. Disease transmission
C. Noise nuisance
D. Structural damage
,Answer: B
Rationale: Rodents spread diseases like leptospirosis and hantavirus.
5. Which organism causes malaria?
A. Virus
B. Bacteria
C. Protozoan parasite
D. Fungus
Answer: C
Rationale: Malaria is caused by Plasmodium species, a protozoan
parasite.
6. Cockroaches are dangerous in public health because they:
A. Bite humans
B. Transmit diseases mechanically
C. Inject venom
D. Destroy crops
Answer: B
Rationale: They carry pathogens on their bodies and contaminate
food.
, 7. The best method for mosquito larval control is:
A. Fogging adult mosquitoes
B. Removing standing water
C. Using repellents
D. Installing screens
Answer: B
Rationale: Eliminating breeding sites prevents larval development.
8. Which pest is most associated with allergic reactions in humans?
A. Bed bugs
B. Cockroaches
C. Termites
D. Ants
Answer: B
Rationale: Cockroach allergens can trigger asthma and allergies.
9. Fleas are most commonly controlled by targeting:
A. Eggs only
B. Adults only
Examination Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. Which pest is most commonly associated with spreading plague in
public health settings?
A. Housefly
B. Rat flea
C. Mosquito
D. Bed bug
Answer: B
Rationale: Rat fleas transmit Yersinia pestis, the bacterium that
causes plague.
2. The primary disease transmitted by Anopheles mosquitoes is:
A. Dengue fever
B. Malaria
C. Yellow fever
,D. Zika virus
Answer: B
Rationale: Anopheles mosquitoes are the primary vectors of malaria
parasites.
3. Which insect is known for transmitting typhoid fever mechanically?
A. Housefly
B. Cockroach
C. Flea
D. Tick
Answer: A
Rationale: Houseflies contaminate food with pathogens through their
body surfaces and feces.
4. What is the main reason rodents are considered public health
pests?
A. Crop destruction
B. Disease transmission
C. Noise nuisance
D. Structural damage
,Answer: B
Rationale: Rodents spread diseases like leptospirosis and hantavirus.
5. Which organism causes malaria?
A. Virus
B. Bacteria
C. Protozoan parasite
D. Fungus
Answer: C
Rationale: Malaria is caused by Plasmodium species, a protozoan
parasite.
6. Cockroaches are dangerous in public health because they:
A. Bite humans
B. Transmit diseases mechanically
C. Inject venom
D. Destroy crops
Answer: B
Rationale: They carry pathogens on their bodies and contaminate
food.
, 7. The best method for mosquito larval control is:
A. Fogging adult mosquitoes
B. Removing standing water
C. Using repellents
D. Installing screens
Answer: B
Rationale: Eliminating breeding sites prevents larval development.
8. Which pest is most associated with allergic reactions in humans?
A. Bed bugs
B. Cockroaches
C. Termites
D. Ants
Answer: B
Rationale: Cockroach allergens can trigger asthma and allergies.
9. Fleas are most commonly controlled by targeting:
A. Eggs only
B. Adults only
