Texas Pesticide Applicators General Standards
Questions with Correct Answers & Explanations | Texas
General Pump Installer | Graded A+ Study Guide
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Does a hydraulic sprayer have low pressure or high pressure? - answer : ;High pressure
What type of sprayer would you use with a wettable powder formulation to treat an oak tree in a
backyard? - answer : ;High-pressure sprayer
Which type of sprayer is more likely to cause you to injure sensitive vegetation or wildlife by overdosing
with concentrated pesticides? - answer : ;ULV
You must increase pressure ___ times to double flow rate. - answer : ;4
List 3 materials that nozzles are made from. - answer : ;brass
plastic
stainless steel
ceramic
hardened stainless steel
True or False: Among nozzle materials, brass is the least resistant to wear. - answer : ;True
Which pump does not have an automatic pressure relief characteristic? - answer : ;Piston pump
,List 2 advantages and 1 disadvantage of a piston pump. - answer : ;Advantages-There is no leakage
inside the pump chamber, Output is virtually unaffected by pressure
disadvantage-it has poor maneuverability
What are some basic functions of spray nozzles? - answer : ;Regulate the flow of liquid
To atomize the liquid stream
To spread droplets in a specific pattern
Worn nozzle tips produce poor spray patterns and ___ flow rates than new nozzles. - answer : ;higher
You should replace a used nozzle when its flow rate varies ___ % or more from a new nozzle. - answer :
;5
A sprayer should be cleaned after ___ days of use. - answer : ;1
When cleaning a sprayer, you should dill and flush the tank with water at least ___ times before using a
cleaning solution. - answer : ;2
True or False: Even when you have the right mixture in the spray tank, you can still apply the wrong
amount of pesticide. - answer : ;True
True or False: Once your sprayer is calibrated, its delivery rate will remain constant. - answer : ;False
What must you measure to calibrate granular application equipment? - answer : ;The weight of granules
spread over a known area.
True or False: You must calibrate granular application equipment each time you change granular
products. - answer : ;True
How many square feet equals 1 acre? - answer : ;43,560
,If your sprayer delivers less spray to an area than you want it to, how would you change the rate? -
answer : ;increase the pressure
reduce ground speed
use larger nozzles
32 oz of water was collected from one spray nozzle in 30 seconds. What is the nozzle delivery rate in
gallons per minute? - answer : ;.5 GPM
How many square feet could you treat with a hand sprayer holding 1 gallon, if it takes 4 oz of the spray
mix to treat 100 square feet? - answer : ;3200
True or False: Nozzle discharge rate and sprayer calibration should be checked with clean water before
adding pesticide. - answer : ;True
A fenced yard that is 200 ft wide and 300 ft long needs to be treated along a 6" band on the inside and a
6" band on the outside of the fence. How many square feet will be treated? - answer : ;1000
True of False: Wind can actually help reduce air pollution during an inversion. - answer : ;True
Weather-wise applications can help you save money by saving the pesticide lost through ___ and ___. -
answer : ;Drift, runoff
True or False: Windy day application increases hazard to you and bystanders. - answer : ;True
True or False: If pesticide drifts onto a non target area, causing injury or economic loss, the applicator is
legally responsible. - answer : ;True
Why must spray applications dry onto a surface before rain? - answer : ;So the rain won't cause runoff
of the pesticide
What harm can pesticide runoff do? - answer : ;It can harm non target plants
, It can harm wildlife
It can pollute water
What weather factors reduce drift? - answer : ;lack of wind, low temperatures, and high humidity
What conditions make early morning or evening a good time for application? - answer : ;Wind speed is
lower and humidity is higher than other times of the day.
When does an inversion occur? - answer : ;When the surface air is cooler than the air above it.
Why should you carefully dispose of surplus pesticides and empty containers? - answer : ;To prevent
escape of pesticide wastes into the environment
To avoid potential health hazards to people and animals
To satisfy legal requirements
What problems result from buying more pesticide than you can use? - answer : ;storage and disposal
problems
Loss of pesticide effectiveness during storage
Unnecessary handling risks
What is the proper way to dispose of surplus concentrated pesticide that is still in its original container?
- answer : ;If it is unopened, return it to the manufacturer or distributer; Give it to another certified
applicator to use
True or False: If you rinse out an empty pesticide container three times, you can use it for another
purpose or let children play with it. - answer : ;False
What should you do with rinse water if you can't add it to the tank mix? - answer : ;Apply it on a site
with a similar pest problem.
How should you dispose of empty cardboard fungicide containers? - answer : ;Dispose of them
according to label instructions
Questions with Correct Answers & Explanations | Texas
General Pump Installer | Graded A+ Study Guide
download instant pdf
Does a hydraulic sprayer have low pressure or high pressure? - answer : ;High pressure
What type of sprayer would you use with a wettable powder formulation to treat an oak tree in a
backyard? - answer : ;High-pressure sprayer
Which type of sprayer is more likely to cause you to injure sensitive vegetation or wildlife by overdosing
with concentrated pesticides? - answer : ;ULV
You must increase pressure ___ times to double flow rate. - answer : ;4
List 3 materials that nozzles are made from. - answer : ;brass
plastic
stainless steel
ceramic
hardened stainless steel
True or False: Among nozzle materials, brass is the least resistant to wear. - answer : ;True
Which pump does not have an automatic pressure relief characteristic? - answer : ;Piston pump
,List 2 advantages and 1 disadvantage of a piston pump. - answer : ;Advantages-There is no leakage
inside the pump chamber, Output is virtually unaffected by pressure
disadvantage-it has poor maneuverability
What are some basic functions of spray nozzles? - answer : ;Regulate the flow of liquid
To atomize the liquid stream
To spread droplets in a specific pattern
Worn nozzle tips produce poor spray patterns and ___ flow rates than new nozzles. - answer : ;higher
You should replace a used nozzle when its flow rate varies ___ % or more from a new nozzle. - answer :
;5
A sprayer should be cleaned after ___ days of use. - answer : ;1
When cleaning a sprayer, you should dill and flush the tank with water at least ___ times before using a
cleaning solution. - answer : ;2
True or False: Even when you have the right mixture in the spray tank, you can still apply the wrong
amount of pesticide. - answer : ;True
True or False: Once your sprayer is calibrated, its delivery rate will remain constant. - answer : ;False
What must you measure to calibrate granular application equipment? - answer : ;The weight of granules
spread over a known area.
True or False: You must calibrate granular application equipment each time you change granular
products. - answer : ;True
How many square feet equals 1 acre? - answer : ;43,560
,If your sprayer delivers less spray to an area than you want it to, how would you change the rate? -
answer : ;increase the pressure
reduce ground speed
use larger nozzles
32 oz of water was collected from one spray nozzle in 30 seconds. What is the nozzle delivery rate in
gallons per minute? - answer : ;.5 GPM
How many square feet could you treat with a hand sprayer holding 1 gallon, if it takes 4 oz of the spray
mix to treat 100 square feet? - answer : ;3200
True or False: Nozzle discharge rate and sprayer calibration should be checked with clean water before
adding pesticide. - answer : ;True
A fenced yard that is 200 ft wide and 300 ft long needs to be treated along a 6" band on the inside and a
6" band on the outside of the fence. How many square feet will be treated? - answer : ;1000
True of False: Wind can actually help reduce air pollution during an inversion. - answer : ;True
Weather-wise applications can help you save money by saving the pesticide lost through ___ and ___. -
answer : ;Drift, runoff
True or False: Windy day application increases hazard to you and bystanders. - answer : ;True
True or False: If pesticide drifts onto a non target area, causing injury or economic loss, the applicator is
legally responsible. - answer : ;True
Why must spray applications dry onto a surface before rain? - answer : ;So the rain won't cause runoff
of the pesticide
What harm can pesticide runoff do? - answer : ;It can harm non target plants
, It can harm wildlife
It can pollute water
What weather factors reduce drift? - answer : ;lack of wind, low temperatures, and high humidity
What conditions make early morning or evening a good time for application? - answer : ;Wind speed is
lower and humidity is higher than other times of the day.
When does an inversion occur? - answer : ;When the surface air is cooler than the air above it.
Why should you carefully dispose of surplus pesticides and empty containers? - answer : ;To prevent
escape of pesticide wastes into the environment
To avoid potential health hazards to people and animals
To satisfy legal requirements
What problems result from buying more pesticide than you can use? - answer : ;storage and disposal
problems
Loss of pesticide effectiveness during storage
Unnecessary handling risks
What is the proper way to dispose of surplus concentrated pesticide that is still in its original container?
- answer : ;If it is unopened, return it to the manufacturer or distributer; Give it to another certified
applicator to use
True or False: If you rinse out an empty pesticide container three times, you can use it for another
purpose or let children play with it. - answer : ;False
What should you do with rinse water if you can't add it to the tank mix? - answer : ;Apply it on a site
with a similar pest problem.
How should you dispose of empty cardboard fungicide containers? - answer : ;Dispose of them
according to label instructions
