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California (CA) Branch 1 (Fumigation) Applicator
Exam | Latest Verified Questions and Detailed
Answers
OVERVIEW DESCRIPTION
This comprehensive set of multiple-choice questions is designed for the California
Branch 1 (Fumigation) Applicator Exam, administered by the California Structural Pest
Control Board. The content mirrors the exam's structure, assessing a candidate's
knowledge of essential topics such as fumigant properties and application, safety
protocols, regulatory compliance with the Structural Pest Control Act, pest
identification, and specific fumigation procedures like the California Aeration Plan
(CAP). It serves as a rigorous tool to evaluate proficiency in managing household and
wood-destroying pests using lethal gases.
QUESTION 1
What is the active ingredient in Vikane fumigant?
A) Methyl bromide
B) Sulfuryl fluoride
C) Phosphine
D) Chloropicrin
CORRECT ANSWER: B
EXPERT RATIONALE: Vikane's active ingredient is sulfuryl fluoride, a colorless, odorless
gas used for structural fumigation. Methyl bromide is a different fumigant now largely
phased out.
QUESTION 2
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Under California regulations, who must be physically present during the gas release
phase of a fumigation?
A) Any certified applicator
B) A licensed Branch 1 operator
C) The property owner
D) A fire department official
CORRECT ANSWER: B
EXPERT RATIONALE: A licensed Branch 1 operator must be physically present at the site
during gas release, ventilation, and clearance for occupancy release. Direct supervision
cannot be delegated to uncertified personnel.
QUESTION 3
Which document must be provided to the property owner before a structural
fumigation in California?
A) Material Safety Data Sheet
B) Pesticide Safety Information Series (PSIS) Leaflet N
C) Fumigation Work Plan
D) Emergency Response Guide
CORRECT ANSWER: B
EXPERT RATIONALE: PSIS Leaflet N covers fumigation safety and must be given to the
owner or occupant prior to treatment. It is required by the California Department of
Pesticide Regulation.
QUESTION 4
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What is the minimum required aeration time under the California Aeration Plan (CAP)
for a residential structure fumigated with sulfuryl fluoride?
A) 2 hours
B) 6 hours
C) 12 hours
D) 24 hours
CORRECT ANSWER: B
EXPERT RATIONALE: CAP requires at least 6 hours of fan-forced aeration before
reoccupancy. Actual time may vary based on concentration monitoring and structure
size.
QUESTION 5
Which pest is NOT typically controlled by structural fumigation?
A) Drywood termites
B) Bed bugs
C) Wood-boring beetles
D) Subterranean termites nesting in soil
CORRECT ANSWER: D
EXPERT RATIONALE: Subterranean termites live in soil and require soil treatment or
baiting; fumigation targets pests inside the wood structure but does not eliminate the
colony in the ground.
QUESTION 6
What is the primary purpose of chloropicrin when used in fumigation?
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A) To kill wood-destroying fungi
B) As a warning agent due to its tear gas effect
C) To accelerate gas penetration
D) To neutralize sulfuryl fluoride
CORRECT ANSWER: B
EXPERT RATIONALE: Chloropicrin is a strong lacrimator (tear gas) added as a warning
agent to alert people of gas presence. It is not the primary killing agent.
QUESTION 7
Before fumigating a multi-unit residential building, what must the fumigator provide to
adjacent units?
A) A copy of the fumigation contract
B) Written notice at least 48 hours in advance
C) Free pest inspection
D) Aeration schedule
CORRECT ANSWER: B
EXPERT RATIONALE: California regulations require written notification to all occupants
of adjoining units at least 48 hours before fumigation. This ensures safety and
awareness.
QUESTION 8
Which fumigant is odorless and requires a warning agent for detection?
A) Methyl bromide
California (CA) Branch 1 (Fumigation) Applicator
Exam | Latest Verified Questions and Detailed
Answers
OVERVIEW DESCRIPTION
This comprehensive set of multiple-choice questions is designed for the California
Branch 1 (Fumigation) Applicator Exam, administered by the California Structural Pest
Control Board. The content mirrors the exam's structure, assessing a candidate's
knowledge of essential topics such as fumigant properties and application, safety
protocols, regulatory compliance with the Structural Pest Control Act, pest
identification, and specific fumigation procedures like the California Aeration Plan
(CAP). It serves as a rigorous tool to evaluate proficiency in managing household and
wood-destroying pests using lethal gases.
QUESTION 1
What is the active ingredient in Vikane fumigant?
A) Methyl bromide
B) Sulfuryl fluoride
C) Phosphine
D) Chloropicrin
CORRECT ANSWER: B
EXPERT RATIONALE: Vikane's active ingredient is sulfuryl fluoride, a colorless, odorless
gas used for structural fumigation. Methyl bromide is a different fumigant now largely
phased out.
QUESTION 2
,2|Page
Under California regulations, who must be physically present during the gas release
phase of a fumigation?
A) Any certified applicator
B) A licensed Branch 1 operator
C) The property owner
D) A fire department official
CORRECT ANSWER: B
EXPERT RATIONALE: A licensed Branch 1 operator must be physically present at the site
during gas release, ventilation, and clearance for occupancy release. Direct supervision
cannot be delegated to uncertified personnel.
QUESTION 3
Which document must be provided to the property owner before a structural
fumigation in California?
A) Material Safety Data Sheet
B) Pesticide Safety Information Series (PSIS) Leaflet N
C) Fumigation Work Plan
D) Emergency Response Guide
CORRECT ANSWER: B
EXPERT RATIONALE: PSIS Leaflet N covers fumigation safety and must be given to the
owner or occupant prior to treatment. It is required by the California Department of
Pesticide Regulation.
QUESTION 4
,3|Page
What is the minimum required aeration time under the California Aeration Plan (CAP)
for a residential structure fumigated with sulfuryl fluoride?
A) 2 hours
B) 6 hours
C) 12 hours
D) 24 hours
CORRECT ANSWER: B
EXPERT RATIONALE: CAP requires at least 6 hours of fan-forced aeration before
reoccupancy. Actual time may vary based on concentration monitoring and structure
size.
QUESTION 5
Which pest is NOT typically controlled by structural fumigation?
A) Drywood termites
B) Bed bugs
C) Wood-boring beetles
D) Subterranean termites nesting in soil
CORRECT ANSWER: D
EXPERT RATIONALE: Subterranean termites live in soil and require soil treatment or
baiting; fumigation targets pests inside the wood structure but does not eliminate the
colony in the ground.
QUESTION 6
What is the primary purpose of chloropicrin when used in fumigation?
, 4|Page
A) To kill wood-destroying fungi
B) As a warning agent due to its tear gas effect
C) To accelerate gas penetration
D) To neutralize sulfuryl fluoride
CORRECT ANSWER: B
EXPERT RATIONALE: Chloropicrin is a strong lacrimator (tear gas) added as a warning
agent to alert people of gas presence. It is not the primary killing agent.
QUESTION 7
Before fumigating a multi-unit residential building, what must the fumigator provide to
adjacent units?
A) A copy of the fumigation contract
B) Written notice at least 48 hours in advance
C) Free pest inspection
D) Aeration schedule
CORRECT ANSWER: B
EXPERT RATIONALE: California regulations require written notification to all occupants
of adjoining units at least 48 hours before fumigation. This ensures safety and
awareness.
QUESTION 8
Which fumigant is odorless and requires a warning agent for detection?
A) Methyl bromide
