Washington Pesticide Laws and Safety Test, Practice
Exam Questions and Guide Answers
100% Verified Graded A+
1. A key to minimizing the hazard of pesticide use to the applicator is to avoid
exposure (T/F):
Answer: True
2. The use of temperature or humidity manipulation is a control
method for insects:
Answer: Physical
3. Drift problems can be reduced by:
a. using lower pressure, smaller nozzle orifices
b. applying in very calm, stable air conditions
c. spraying upwind of a sensitive area
d. placing bloom as close to target as possible:
,Answer: d. placing a boom as close to the target as possible
4. Which is not a concern handling a emulsifiable concentrate pesticide:
a. high phytotoxicity
b. may be easily absorbed through human and animal skin
c. flammability
d. easily clogs nozzles and screens:
Answer: d. easily clogs nozzles and screens
5. EPA and WSDA are the only federal and state agencies that regulate pesti-
cides (T/F):
Answer: False
6. Two or more pesticides that cannot mixed together effectively are said to be
.:
Answer: Incompatible
7. All formations with the same active ingredient carry the same signal word
(T/F):
Answer: False
8. The skull and crossbones symbol must appear on every pesticide label
(T/F):
,Answer: False
9. The best way to dispose of a registered pesticide is to:
a. pour it into the sewer system
b. dump it in a vacant area
c. use it as direct on the label
d. ship it to the EPA:
Answer: c. use it as direct on the label
10. To minimize the drift when applying a herbicide, the best type of nozzle to
use is:
a. a low pressure, flat fan
b. off center
c. a high pressure cone
d. makes no difference:
Answer: a. a low pressure, flat fan
11. Which LD50 is a representative of a highly toxic pesticide:
a. 640 mg/kg
b. 5,800 mg/kg
c. 12,840 mg/kg
, d. 46 mg/kg:
Answer: d. 46 mg/kg
12. Pesticide-contaminated surface water can contaminate groundwater (T/F)-
Answer:: True
13. Pesticide records are useful only to applicators in case they have problems
with effectiveness (T/F):
Answer: False
14. If an applicator had two major label violations and was cited by the WSDA,
they could face a maximum fine of $15,000 and lose their liscence (T/F):
Answer: True
15. Dealers must keep records for 7 years on the sale of general use agricultural
pesticides (T/F):
Answer: True
16. One of the earliest uses of chemicals as pesticides was the burning of sulfur
(T/F):
Answer: True
17. When the pest reaches the , pest management procedures need to be
applied to prevent the pest from economically damaging populations.:
Answer: Economic threshold
Exam Questions and Guide Answers
100% Verified Graded A+
1. A key to minimizing the hazard of pesticide use to the applicator is to avoid
exposure (T/F):
Answer: True
2. The use of temperature or humidity manipulation is a control
method for insects:
Answer: Physical
3. Drift problems can be reduced by:
a. using lower pressure, smaller nozzle orifices
b. applying in very calm, stable air conditions
c. spraying upwind of a sensitive area
d. placing bloom as close to target as possible:
,Answer: d. placing a boom as close to the target as possible
4. Which is not a concern handling a emulsifiable concentrate pesticide:
a. high phytotoxicity
b. may be easily absorbed through human and animal skin
c. flammability
d. easily clogs nozzles and screens:
Answer: d. easily clogs nozzles and screens
5. EPA and WSDA are the only federal and state agencies that regulate pesti-
cides (T/F):
Answer: False
6. Two or more pesticides that cannot mixed together effectively are said to be
.:
Answer: Incompatible
7. All formations with the same active ingredient carry the same signal word
(T/F):
Answer: False
8. The skull and crossbones symbol must appear on every pesticide label
(T/F):
,Answer: False
9. The best way to dispose of a registered pesticide is to:
a. pour it into the sewer system
b. dump it in a vacant area
c. use it as direct on the label
d. ship it to the EPA:
Answer: c. use it as direct on the label
10. To minimize the drift when applying a herbicide, the best type of nozzle to
use is:
a. a low pressure, flat fan
b. off center
c. a high pressure cone
d. makes no difference:
Answer: a. a low pressure, flat fan
11. Which LD50 is a representative of a highly toxic pesticide:
a. 640 mg/kg
b. 5,800 mg/kg
c. 12,840 mg/kg
, d. 46 mg/kg:
Answer: d. 46 mg/kg
12. Pesticide-contaminated surface water can contaminate groundwater (T/F)-
Answer:: True
13. Pesticide records are useful only to applicators in case they have problems
with effectiveness (T/F):
Answer: False
14. If an applicator had two major label violations and was cited by the WSDA,
they could face a maximum fine of $15,000 and lose their liscence (T/F):
Answer: True
15. Dealers must keep records for 7 years on the sale of general use agricultural
pesticides (T/F):
Answer: True
16. One of the earliest uses of chemicals as pesticides was the burning of sulfur
(T/F):
Answer: True
17. When the pest reaches the , pest management procedures need to be
applied to prevent the pest from economically damaging populations.:
Answer: Economic threshold
