TEXAS CERTIFIED APPLICATOR
PRACTICE EXAM PREP Questions and
Answers Verified by Expert Latest Versions
2025 TOP RATED A+
What is pesticide exposure?
a. Coming in contact with a pesticide
b. Being poisoned by a pesticide
c. Neither of the above
d. Both of the above - ✓✓✓a. Coming in contact with a pesticide
refers to how poisonous a pesticide is after short-term exposure. -
✓✓✓Acute toxicity
is a one-time or short-term contact with pesticide. - ✓✓✓Acute exposure
is a delayed poisonous effect from exposure to a substance. -
✓✓✓Chronic toxicity
is long-term repeated contact with pesticides. - ✓✓✓Chronic exposure
The effects of which type of exposure---acute or chronic--- can be more easily detected and
studied? - ✓✓✓Acute
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,A pesticide dose is the of pesticide of which a surface, plant or animal is exposed. -
✓✓✓Amount
Name the three routes by which pesticide can enter your body. - ✓✓✓Dermal , oral , inhalation
Some pesticide are poisonous no matter how they enter the body.
T/F - ✓✓✓True
Which pesticide solution is most likely to be absorbed through the skin?
a. Oil-based
b. Water-based
c. Dry - ✓✓✓a. Oil-based
Which areas of the body absorb pesticides quickly?
a. Feet, hands, head, and groin
b. Scalp, nose, hands, and arms
c. Face, hands, torso, and scalp
d. Eyes, ears, scalp, and genitals - ✓✓✓d. Eyes, ears, scalp, and genitals
Which two routes of entry are likely to be the most important to you?
a. Dermal and oral
b. Dermal and inhalation
c. Inhalation and oral
d. None of the above - ✓✓✓b. Dermal and inhalation
Which factor affects the toxicity of a pesticide?
a. Route of entry
b. frequency and duration (rate) of exposure
c. Does received
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,d. All of the above - ✓✓✓d. All of the above
An example of a chronic effect is the drop in , an essential body enzyme, caused by
organophosphates and carbamates. - ✓✓✓Cholinesterase
effects occur at the site of contact with a pesticide while effects
occur away from the point of contact. - ✓✓✓Local, systemic
Skin rash, nausea, eye irritation, and dizziness are examples of toxic effects. -
✓✓✓Reversible
LD 50 means "lethal dose fifty" it refers to the amount of chemical that kills the
animals exposed to it in a laboratory test. - ✓✓✓half (50%)
The smaller the LD 50 value, the less chemical required to fatal, so the more poisonous the
pesticide. T/F - ✓✓✓True
Acute oral toxicity and acute dermal toxicity are measured as LD 50. The higher the LD 50 the
(more or less) toxic the pesticide. - ✓✓✓Less
How is LD 50 used?
a. LD 50 is used with other tests to place pesticides in a " toxic category" and give them a
"signal word."
b. LD 50 is used to compare the toxicity of different chemicals.
c. LD 50 is used to tell how a chemical acts and how sensitive different organs within an animal
or human might be. - ✓✓✓a. LD 50 is used with other tests to place pesticides in a " toxic
category" and give them a "signal word."
LC 50 means "lethal fifty." It refers to the amount of chemical in the air that caused
half of the test animals to die when they inhaled it. - ✓✓✓Concentration
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, Six milligrams per kilogram (mg/kg) is equal to parts per million. - ✓✓✓six
What signal word must be on the label for pesticides classified as "relatively non-toxic"
a. CAUTION!
b. DANGER!
c. WARNING! - ✓✓✓a. CAUTION!
What signal word must be on the label for pesticides classified as "Highly toxic"?
a. CAUTION!
b. DANGER!
c. WARNING! - ✓✓✓b. DANGER!
What signal word must be on the label for pesticides classified as "Slightly toxic"?
a. CAUTION!
b. DANGER!
c. WARNING! - ✓✓✓a. CAUTION!
What signal word must be on the label for pesticides classified as "moderately toxic"?
a. CAUTION
b. DANGER
c. WARNING - ✓✓✓c. WARNING
The toxicity of a substance is its ability to cause injury, while is the risk or chance
that harm will come from using the pesticide. - ✓✓✓hazard
Is a highly toxic material always very hazardous?
a. No, if a highly toxic material is handled properly it could actually pose low risk or hazard.
b. Yes, no matter how it is handled a highly toxic material is always hazardous. - ✓✓✓a. No, if a
highly toxic material is handled properly it could actually pose low risk or hazard.
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PRACTICE EXAM PREP Questions and
Answers Verified by Expert Latest Versions
2025 TOP RATED A+
What is pesticide exposure?
a. Coming in contact with a pesticide
b. Being poisoned by a pesticide
c. Neither of the above
d. Both of the above - ✓✓✓a. Coming in contact with a pesticide
refers to how poisonous a pesticide is after short-term exposure. -
✓✓✓Acute toxicity
is a one-time or short-term contact with pesticide. - ✓✓✓Acute exposure
is a delayed poisonous effect from exposure to a substance. -
✓✓✓Chronic toxicity
is long-term repeated contact with pesticides. - ✓✓✓Chronic exposure
The effects of which type of exposure---acute or chronic--- can be more easily detected and
studied? - ✓✓✓Acute
P a g e 1 | 32
,A pesticide dose is the of pesticide of which a surface, plant or animal is exposed. -
✓✓✓Amount
Name the three routes by which pesticide can enter your body. - ✓✓✓Dermal , oral , inhalation
Some pesticide are poisonous no matter how they enter the body.
T/F - ✓✓✓True
Which pesticide solution is most likely to be absorbed through the skin?
a. Oil-based
b. Water-based
c. Dry - ✓✓✓a. Oil-based
Which areas of the body absorb pesticides quickly?
a. Feet, hands, head, and groin
b. Scalp, nose, hands, and arms
c. Face, hands, torso, and scalp
d. Eyes, ears, scalp, and genitals - ✓✓✓d. Eyes, ears, scalp, and genitals
Which two routes of entry are likely to be the most important to you?
a. Dermal and oral
b. Dermal and inhalation
c. Inhalation and oral
d. None of the above - ✓✓✓b. Dermal and inhalation
Which factor affects the toxicity of a pesticide?
a. Route of entry
b. frequency and duration (rate) of exposure
c. Does received
P a g e 2 | 32
,d. All of the above - ✓✓✓d. All of the above
An example of a chronic effect is the drop in , an essential body enzyme, caused by
organophosphates and carbamates. - ✓✓✓Cholinesterase
effects occur at the site of contact with a pesticide while effects
occur away from the point of contact. - ✓✓✓Local, systemic
Skin rash, nausea, eye irritation, and dizziness are examples of toxic effects. -
✓✓✓Reversible
LD 50 means "lethal dose fifty" it refers to the amount of chemical that kills the
animals exposed to it in a laboratory test. - ✓✓✓half (50%)
The smaller the LD 50 value, the less chemical required to fatal, so the more poisonous the
pesticide. T/F - ✓✓✓True
Acute oral toxicity and acute dermal toxicity are measured as LD 50. The higher the LD 50 the
(more or less) toxic the pesticide. - ✓✓✓Less
How is LD 50 used?
a. LD 50 is used with other tests to place pesticides in a " toxic category" and give them a
"signal word."
b. LD 50 is used to compare the toxicity of different chemicals.
c. LD 50 is used to tell how a chemical acts and how sensitive different organs within an animal
or human might be. - ✓✓✓a. LD 50 is used with other tests to place pesticides in a " toxic
category" and give them a "signal word."
LC 50 means "lethal fifty." It refers to the amount of chemical in the air that caused
half of the test animals to die when they inhaled it. - ✓✓✓Concentration
P a g e 3 | 32
, Six milligrams per kilogram (mg/kg) is equal to parts per million. - ✓✓✓six
What signal word must be on the label for pesticides classified as "relatively non-toxic"
a. CAUTION!
b. DANGER!
c. WARNING! - ✓✓✓a. CAUTION!
What signal word must be on the label for pesticides classified as "Highly toxic"?
a. CAUTION!
b. DANGER!
c. WARNING! - ✓✓✓b. DANGER!
What signal word must be on the label for pesticides classified as "Slightly toxic"?
a. CAUTION!
b. DANGER!
c. WARNING! - ✓✓✓a. CAUTION!
What signal word must be on the label for pesticides classified as "moderately toxic"?
a. CAUTION
b. DANGER
c. WARNING - ✓✓✓c. WARNING
The toxicity of a substance is its ability to cause injury, while is the risk or chance
that harm will come from using the pesticide. - ✓✓✓hazard
Is a highly toxic material always very hazardous?
a. No, if a highly toxic material is handled properly it could actually pose low risk or hazard.
b. Yes, no matter how it is handled a highly toxic material is always hazardous. - ✓✓✓a. No, if a
highly toxic material is handled properly it could actually pose low risk or hazard.
P a g e 4 | 32
