Minnesota Sewer Root Control Pest
Control Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
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1. Which type of pest problem is primarily addressed in sewer root
control operations?
A. Insect infestations inside buildings
B. Rodent populations in agricultural fields
C. Plant root intrusion into sewer lines
D. Aquatic weed growth in ponds
Answer: C. Plant root intrusion into sewer lines
Rationale: Sewer root control focuses on managing tree and plant roots
that enter sewer pipes, causing blockages, damage, and reduced flow
capacity.
, 2. The main reason tree roots enter sewer pipes is usually because the
pipes provide:
A. High levels of sunlight
B. Moisture and nutrients
C. Increased soil temperature only
D. Protection from all soil organisms
Answer: B. Moisture and nutrients
Rationale: Roots are attracted to sewer lines because leaking joints and
cracks release water and nutrients that encourage root growth.
3. A common symptom of sewer root intrusion is:
A. Increased water pressure throughout a building
B. Slow drainage or repeated backups
C. Reduced electrical power
D. Increased air circulation
Answer: B. Slow drainage or repeated backups
Rationale: Roots growing inside sewer pipes restrict flow and commonly
cause slow drainage, backups, and blockages.
4. Sewer root control pesticide products are generally classified as:
,A. Herbicides
B. Fungicides
C. Rodenticides
D. Insecticides
Answer: A. Herbicides
Rationale: Root control products are designed to suppress plant growth
and are therefore herbicides.
5. The purpose of a sewer root control treatment is to:
A. Increase root growth in pipes
B. Eliminate all trees near sewer systems
C. Reduce root growth and maintain flow
D. Replace sewer pipes immediately
Answer: C. Reduce root growth and maintain flow
Rationale: Treatments are intended to control roots within pipes and
extend the useful life of sewer systems.
6. Before applying a sewer root control product, the operator should
first:
A. Ignore pipe conditions
B. Inspect the sewer system
, C. Increase chemical concentration
D. Remove nearby vegetation automatically
Answer: B. Inspect the sewer system
Rationale: Inspection helps determine root location, pipe condition, and
the appropriate treatment approach.
7. Which method is commonly used to remove existing roots before
chemical treatment?
A. High-pressure water jetting
B. Painting the pipe surface
C. Adding fertilizer
D. Freezing the sewer line
Answer: A. High-pressure water jetting
Rationale: Mechanical methods such as cutting or water jetting remove
existing root masses before control treatments.
8. Sewer root control products should always be applied according to:
A. Personal preference
B. Label directions
C. Weather forecasts only
D. Customer requests only
Control Exam Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant
Download Pdf
1. Which type of pest problem is primarily addressed in sewer root
control operations?
A. Insect infestations inside buildings
B. Rodent populations in agricultural fields
C. Plant root intrusion into sewer lines
D. Aquatic weed growth in ponds
Answer: C. Plant root intrusion into sewer lines
Rationale: Sewer root control focuses on managing tree and plant roots
that enter sewer pipes, causing blockages, damage, and reduced flow
capacity.
, 2. The main reason tree roots enter sewer pipes is usually because the
pipes provide:
A. High levels of sunlight
B. Moisture and nutrients
C. Increased soil temperature only
D. Protection from all soil organisms
Answer: B. Moisture and nutrients
Rationale: Roots are attracted to sewer lines because leaking joints and
cracks release water and nutrients that encourage root growth.
3. A common symptom of sewer root intrusion is:
A. Increased water pressure throughout a building
B. Slow drainage or repeated backups
C. Reduced electrical power
D. Increased air circulation
Answer: B. Slow drainage or repeated backups
Rationale: Roots growing inside sewer pipes restrict flow and commonly
cause slow drainage, backups, and blockages.
4. Sewer root control pesticide products are generally classified as:
,A. Herbicides
B. Fungicides
C. Rodenticides
D. Insecticides
Answer: A. Herbicides
Rationale: Root control products are designed to suppress plant growth
and are therefore herbicides.
5. The purpose of a sewer root control treatment is to:
A. Increase root growth in pipes
B. Eliminate all trees near sewer systems
C. Reduce root growth and maintain flow
D. Replace sewer pipes immediately
Answer: C. Reduce root growth and maintain flow
Rationale: Treatments are intended to control roots within pipes and
extend the useful life of sewer systems.
6. Before applying a sewer root control product, the operator should
first:
A. Ignore pipe conditions
B. Inspect the sewer system
, C. Increase chemical concentration
D. Remove nearby vegetation automatically
Answer: B. Inspect the sewer system
Rationale: Inspection helps determine root location, pipe condition, and
the appropriate treatment approach.
7. Which method is commonly used to remove existing roots before
chemical treatment?
A. High-pressure water jetting
B. Painting the pipe surface
C. Adding fertilizer
D. Freezing the sewer line
Answer: A. High-pressure water jetting
Rationale: Mechanical methods such as cutting or water jetting remove
existing root masses before control treatments.
8. Sewer root control products should always be applied according to:
A. Personal preference
B. Label directions
C. Weather forecasts only
D. Customer requests only
