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Washington Pesticide Laws and Safety Exam Questions And
Answers Latest Update
A key to minimizing the hazard of pesticide use to the applicator is to avoid exposure (T/F) - ANSWER True
The use of temperature or humidity manipulation is a ________ control method for insects
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 a boom as close to the target as possible
Which is not a concern handling an 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
EPA and WSDA are the only federal and state agencies that regulate pesticides T/F - ANSWER False
Two or more pesticides that cannot mixed together effectively are said to be ___________. - ANSWER Incompatible
All formations with the same active ingredient carry the same signal word T/F - ANSWER False
The skull and crossbones symbol must appear on every pesticide label. T/F - ANSWER False
The most appropriate method of disposing 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
The drift when applying a herbicide can be reduced by using which of the following types of nozzles: 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
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
Pesticide-contaminated surface water can contaminate groundwater (T/F) - ANSWER True
Pesticide records are useful only to applicators in case they have problems with
The first step in a pest management program is to identify the pest (T/F) - ANSWER True
The goal of a pest management program is to eliminate the pest (T/F) - ANSWER False
Pest management that uses many methods is called _____. - ANSWER Integrated Pest Management
Which class of pesticide is taken up into the plant and then translocated throughout the plant? - ANSWER Systemic
Which of the following was NOT a pesticide used before the 1900's? a. Bordeaux b. nicotine c. DDT d. sulfur e. lead arsenate - ANSWER c. DDT
DDT was banned because of its: - ANSWER stability and persistence
Legal control utilizes _____. - ANSWER quarantines
Piscicides are pesticides that control: - ANSWER Fish
Herbicides and insecticides are both pesticides - ANSWER True
Synthetic organic pesticides were first introduced: - ANSWER Post-WWII
The only purpose of of federal and state pesticide laws is to protect the environment
from hazardous pollutants - ANSWER False
The EPA can stop the sale or usage of any pesticide (T/F) - ANSWER True
A dealer-manager is required to be available in a store or outlet when a commercial pesticide is being sold or distributed (T/F) - ANSWER True
Restricted use pesticides can be applied by anyone, anytime if they have been purchased by a certified applicator (T/F) - ANSWER False
All pesticide products containing the same active ingredient are classified the same regardless of the formulation (T/F) - ANSWER False
The WSDA administers the pesticide licensing program in WA (T/F) - ANSWER True
Every pesticide in WA must be first registered with the WSDA (T/F) - ANSWER True
SLN registration allows WSDA to register additional application sites to a federal label (T/F) - ANSWER True
An unlicensed applicator can use restricted use products under the supervision of a private applicators - ANSWER True
How many recertification credits is a commercial applicator required to have? - ANSWER 40 credits in 5 years
EPA and WSDA are the only agencies that regulate pesticides - ANSWER False
Private applicators can be subject to criminal penalties for unlawful conduct under FIFRA - ANSWER True
Which signal word would indicate a product is least toxic to an applicator? - ANSWER Caution
Applicators who routinely use organophosphate and carbonate insecticides should have a pre-season blood test to establish their baseline level of _____. - ANSWER cholinesterase
If pesticide is spilled on skin or clothing, the first reaction should be to ____. - ANSWER remove contaminated clothing and wash affected area with soap and water
The Worker Protection Standard would classify a farm laborer who hand picks vegetables as a _____ (worker or handler). - ANSWER Worker
Pesticide respirators should be approved by ____. - ANSWER NIOSH and MSHA
The life of a cartridge depends on a lot of variables (T/F) - ANSWER True
Gloves and boots should be made of _____. - ANSWER Unlined Rubber
Application records must be kept of file for _____ years. - ANSWER Seven
Pesticides should be stored in what container? - ANSWER Only in their original container
If a nozzle becomes clogged while spraying, _____. - ANSWER stop spraying, move to an untreated area, and use a soft brush to to clean the plugged nozzle.
Never use your waste water rinse as a diluent for future applications (T/F) - ANSWER False
What is an undesirable characteristic of a pesticide storage area? - ANSWER direct sunlight
What WA State agency is responsible for respirators? - ANSWER Dept. Labor and Industries
Which of the following may result in reduced pesticide volatilization: a. high air temps b. low relative humidity c. incorporation d. small droplets e. wet soils - ANSWER b. low relative humidity
Pesticide absorption is greatest in coarse, sandy soils T/F - ANSWER False
Runoff is more likely to occur from a watersaturated soil than from an unsaturated soil. - ANSWER True
Pesticide degration processes can be beneficial because they reduce the amount of pesticide residue in the environment - T/F - ANSWER True
The upper level of the water saturated zone in the soil is called the ____. - ANSWER Water table
Pesticide properties have little effect on whether a chemical will reach the groundwater
Pesticides can reach groundwater through ____. - ANSWER Leaching
b. high absorption to soils c. relatively rapid degradation properties d. high volatility - ANSWER a. high solubility
Pre-harvest intervals listed on a pesticide label are intended to _____. - ANSWER protect produce from residues over tolerances
To what type of pesticides may 2-PAM be employed as an antidote? - ANSWER organophosphates
Which conditions contribute to most spray drift? - ANSWER Small orifice, high pressure
EPA - ANSWER Regulates federal pesticide and environmental issues
OSHA - ANSWER Occupational Safety and Health Administration- Regulates worker safety issues
DOT - ANSWER Regulates Transportation Issues
L&I - ANSWER Regulates employee safety
Define the difference between Absorption vs Adsorption - ANSWER Absorbed vs Adhered
Phytotoxicity - ANSWER The toxic effect by a compound on plant growth
Emulsifiable Concentrate - ANSWER Liquid formulations with the active ingredient dissolved in one or more petroleum solvents
Adjuvant - ANSWER A chemical added to a pesticide to performance and safety
Surfactant - ANSWER Adjuvant that alter the dispersing, spreading, and wetting properties
List the signal words from high toxicity to low - ANSWER Danger-Posion Danger-Peligro (Corrosion) Warning Caution
REI - ANSWER Restricted-entry interval
Volatilization - ANSWER The transformation of a solid or liquid into a gas
Microbial Degration - ANSWER When microorganisms use pesticide as food
FIFRA - ANSWER Gives the EPA legal authority to control pesticides
SLN - ANSWER Special Location Need
The most prevalent reason for moss to develop in lawns is: - ANSWER Soil infertility
Best time to apply pesticide for moss, algae, lichen: - ANSWER Winter
Breeding or selecting plants and animals with characteristics for resistance to pests is an example of what type of pest management method? A. Biological control. B. Mechanical control.
C. Action threshold. D. Pest threshold. - ANSWER B
Which would decrease the likelihood of pesticide resistance? A. Increasing label dosages. B. Using pesticides from the same class of chemicals. C. Applying the pesticide over a wide area. D. Using pesticides with multiple sites of toxicity in an organism. - ANSWER D
Which federal law requires employers to provide agricultural workers and pesticide handlers with protections against possible harm form pesticides? A. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). B. Federal Food, Drug, and Cosmetic Act (FFDCA). C. Food Quality Protection Act (FQPA). D. Workers Protection Standard (WPS) - ANSWER D
What are the two main categories of pesticides under FIFRA? A. Organic and inorganic. B. General-use and unclassified use. C. Regulated and unregulated. D. Unclassified use and restricted-use - ANSWER D
What is a tolerance as established by the EPA? A. The maximum amount of pesticides residue that may lawfully remain on or in a commodity at the time of harvest or slaughter. B. The maximum amount of pesticide residue to which workers may be exposed during the course of an average workday. C. The minimum amount of pesticide residue that may remain on a crop at any time during the growing season.
D. The most pesticide residue that a 150-pound person can eat in one year. - ANSWER A
Which of the following FIFRA section sections might be used to permit the use of an unregistered pesticide to manage an "emergency" pest situation? A. Section 3 B. Section 18 C. Section 24 (c) D. Section 25 (b) - ANSWER C
The name "VIP No Pest 75WP" on a pesticide label indicates: A. The chemical name and 75 percent inert ingredients formulated as a wettable powder. B. The brand name and 25 percent active ingredients, formulated as a wettable powder. C. The brand name and 75 percent active ingredients, formulated as a wettable powder. D. The chemical name and 25 percent active ingredients, formulated as a wettable powder. - ANSWER C
Which signal word appears on a label with a skull and crossbones symbol? A. DANGER-POISON. B. DANGER C. WARNING D. CAUTION - ANSWER A
What does the following statement say about protective clothing and equipment statements? A. Pesticide labels are very consistent in the type of information they contain on protective clothing and equipment. B. When a respirator is required the model is always specified on the label. C. It is not necessary to follow all advice on protective clothing or equipment that
D. Emulsion. - ANSWER C
Which of the following liquid pesticide formulation will have solid particles that do not dissolve in either water or oil and can be responsible for abrasive wear of nozzles and pumps? A. Ultra-low volume (ULV). B. Invert emulsions. C. Aerosols (A). D. Flowables (F)/ Liquids (L). - ANSWER D
Which of the following dry/solid formulation requires constant agitation and may be abrasive to pumps and nozzles and cause them to wear out quickly? A. Dusts (D) B. Granules (G) C. Wettable powders (WP) D. Soluble powders (SP) - ANSWER C
Which of the following type dry/solid pesticide formulation is always dry and can easily drift to non-target sites? A. Dusts. B. Granules. C. Pellets. D. Baits. - ANSWER A
What type of formulation coats either a liquid or dry pesticide particle with plastic? A. Pellets. B. Microencapsulates. C. Water-soluble packets. D. Water-dispersible granules. - ANSWER B
Which of the following is a correct statement about adjuvants? A. They posses pesticidal activity. B. They must be registered by the U.S. Environmental Protection Agency. C. Adjuvants often increase spray application problems. D. Adjuvants are either premixed in the pesticide formulation or added to the spray tank mixture. - ANSWER D
What type of adjuvant promotes the adherence of solid particles to target surfaces? A. Compatibility agents. B. Stickers C. Drift retardants. D. Defoaming agents. - ANSWER B
Which of the following equation describes the relationship of pesticide safety concerns? A. Hazard=toxicity x exposure. B. Toxicity=hazard x exposure. C. Exposure= hazard x toxicity. D. Hazard=exposure x risk - ANSWER A
Which statement about LD50 and LC50 is correct? A. The LD50 and LC50 measure multiple toxic effects. B. The LD50 and LC50 translate directly to humans. C. The LD50 and LC50 measure the potential buildups of effects due to multiple exposures. D. The LD50 and LC50 measure acute toxicity. - ANSWER D
What signal word is associated with Hazard Class III (i.e, small to medium dose could
C. Ipecac syprup is routinely recommended to induce vomiting. D. Immediately give the victim at least 2 glasses of water to dilute the product before inducing vomiting. - ANSWER D
What type of PPE would be appropriate to wear during an application if large amounts of a pesticide could be deposited on your clothing over an extended period of time? A. A coverall made of a cottonsynthetic blend. B. A chemical-resistant suite made of rubber or plastic. C. A chemical-resistant rubber apron. D. Long-sleeved shirt and long pants made of a woven cotton fabric. - ANSWER B
Which is the appropriate way to wear gloves and footwear for a job in which you will be working with your arms raised some of the time and lowered some of the time? A. Wear gloves with your sleeves over them and put your pant legs outside your boots. B. Wear gloves outsie of your sleeves and war your pant legs inside your boots. C. Wear gloves with a cuff closed tightly outside the sleeve and wear your pant legs inside your boots. D. Wear gloves with a cuff closed tightly outside the sleeve and wear your pant legs outside your boots. - ANSWER D
Which statement is true about respiratory protection? A. Air-purifying respirators supply additional oxygen. B. All respirators are approved by the EPA. C. Filters are classified on the basis of oil degradation resistance and filter efficiency. D. Non-powered particulate respirators use a fan to help draw air through a cartridge. - ANSWER C
Which statement is true about replacing reusable PPE? A. Reusable items need to be replaced only at the end of the work season.
B. Gloves generally last longer than footwear, aprons, headgear, and protective suits. C. Replacement of gloves is a high priority. D. PPE that is starting to thin out can be reused as long as there are no holes. - ANSWER C
What should you do with clothing that has been heavily contaminated with pesticides labeled with the signal word DANGER-POISON, DANGER, OR WARNING? A. Dispose of such items in a hazardous waste collection site. B. Dispose of the items with regular trash. C. Wash the itms separately from other clothing using two complete wash cycles. D. Wash the items separately using one wash cycle, and line dry. - ANSWER A
Which of the following practice would prevent groundwater or surface water contamination? A. The removal of grass strips that are between treated fields and streams. B. Storing and mixing herbicides around abandoned wells C. Choose pesticides that strongly adsorb to soil and are not persistent. D. Apply pesticides broadly over large areas. - ANSWER C
Which statement is true about factors affecting spray drift? A. Ground applications usually produce more spray drift than aerial appplications. B. High rates of evaporation and high temperatures reduce drift. C. For reducing drift potential, spraying at midday is usually best. D. Spraying during temperature inversions can result in significant long-distance drift. - ANSWER D
Which statement is true about pesticide effects on non-target organisms? A. Dirft is one of the primary causes of damage to crops and other plants in adjacent areas.
