Michigan Category 5 Aquatic Pest Control Exam Questions and Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

Michigan Category 5 Aquatic Pest Control
Exam Questions and Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf


1.

Which factor most influences aquatic herbicide effectiveness?
A. Wind speed
B. Water temperature
C. Boat type
D. Fish population
Correct Answer: B
Water temperature affects plant metabolism and herbicide activity.



2.

Dissolved oxygen levels in water are most likely reduced by:
A. Photosynthesis
B. Plant decomposition

,C. Rainfall
D. Wave action
Correct Answer: B
Decomposition consumes oxygen, reducing dissolved oxygen levels.



3.

Which is a floating aquatic weed?
A. Hydrilla
B. Eurasian watermilfoil
C. Duckweed
D. Coontail
Correct Answer: C
Duckweed floats on the water surface.



4.

The primary purpose of aquatic pesticide labeling is to:
A. Increase sales
B. Provide legal application instructions
C. Replace training
D. Reduce water use

,Correct Answer: B
Labels are legal documents guiding safe use.



5.

Which herbicide is commonly used for submerged vegetation control?
A. Glyphosate
B. Diquat
C. Atrazine
D. Carbaryl
Correct Answer: B
Diquat is effective on submerged aquatic plants.



6.

Eutrophication is caused by excess:
A. Oxygen
B. Nutrients
C. Fish
D. Sunlight
Correct Answer: B
Nutrient overload promotes algae growth.

, 7.

Which PPE is least essential when applying aquatic herbicides?
A. Gloves
B. Respirator
C. Boots
D. Hearing protection
Correct Answer: D
Noise exposure is typically not a concern.



8.

Blue-green algae are also called:
A. Diatoms
B. Cyanobacteria
C. Protozoa
D. Moss
Correct Answer: B
Cyanobacteria can produce toxins.



9.