MASSACHUSETTS PESTICIDE APPLICATOR
COMPREHENSIVE EXAMS SET 2026
SOLVED QUESTIONS
●● acaricide. Answer: a pesticide used to control mite and ticks. A
miticide is a type of acaricide.
●● acidic. Answer: Having a pH less than 7
●● acidifier. Answer: A. adjuvants used to retard chemical degradation
of pesticides in the spray tank by lowering the pH of alkaline water used
as a diluent
●● Buffers. Answer: B. adjuvants used to retard chemical degradation of
pesticides in the spray tank by lowering the pH of alkaline water used as
a diluent
●● action threshold. Answer: A predetermined level of pest infestation
or damage at which some type of pest management action must be taken.
●● Activated Charcoal. Answer: A finely ground charcoal that adsorbs
chemicals.
, ●● active ingredient (AI). Answer: the chemical or chemicals in a
product responsible for pesticide activity
●● acute effect. Answer: a symptom, illness, or injury that occurs shortly
after exposure to a pesticide
●● acute exposure. Answer: an exposure to a single dose of pesticide
●● acute rodenticide. Answer: a pesticide that is capable of killing a
rodent after a single feeding
●● acute toxicity. Answer: the ability of a pesticide to cause illness after
a single exposure. LD50 and LC50 are common indicators of the degree
of acute toxicity
●● adjuvant (or additive). Answer: a substance added to a pesticide to
improve its effectiveness or safety
●● adsorption. Answer: the process whereby chemicals are bound to a
surface by physical or chemical attraction
●● adulterated pesticide. Answer: a pesticide that does not conform to
the specified standard or quality as documented on its label or labeling
COMPREHENSIVE EXAMS SET 2026
SOLVED QUESTIONS
●● acaricide. Answer: a pesticide used to control mite and ticks. A
miticide is a type of acaricide.
●● acidic. Answer: Having a pH less than 7
●● acidifier. Answer: A. adjuvants used to retard chemical degradation
of pesticides in the spray tank by lowering the pH of alkaline water used
as a diluent
●● Buffers. Answer: B. adjuvants used to retard chemical degradation of
pesticides in the spray tank by lowering the pH of alkaline water used as
a diluent
●● action threshold. Answer: A predetermined level of pest infestation
or damage at which some type of pest management action must be taken.
●● Activated Charcoal. Answer: A finely ground charcoal that adsorbs
chemicals.
, ●● active ingredient (AI). Answer: the chemical or chemicals in a
product responsible for pesticide activity
●● acute effect. Answer: a symptom, illness, or injury that occurs shortly
after exposure to a pesticide
●● acute exposure. Answer: an exposure to a single dose of pesticide
●● acute rodenticide. Answer: a pesticide that is capable of killing a
rodent after a single feeding
●● acute toxicity. Answer: the ability of a pesticide to cause illness after
a single exposure. LD50 and LC50 are common indicators of the degree
of acute toxicity
●● adjuvant (or additive). Answer: a substance added to a pesticide to
improve its effectiveness or safety
●● adsorption. Answer: the process whereby chemicals are bound to a
surface by physical or chemical attraction
●● adulterated pesticide. Answer: a pesticide that does not conform to
the specified standard or quality as documented on its label or labeling
