Chemical Application and Safety Jeopardy
N.C. Cooperative Extension
Robert H. Pleasants, Wayne County
Chemical Application and Safety Jeopardy
PPE & Such
Nozzle Knowledge
Calibration & Calculations
Equipment & Setup
This & That
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The type of spraying for which this nozzle is especially good.
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What is “band spraying?”
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This type of nozzle provides thorough coverage of the target site.
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What is a “full or solid cone?”
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This type nozzle often is used for applying insecticides.
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What is a “hollow cone?”
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The type of nozzle shown requires this type of pressure and range of pressure.
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What is “low, 10 to 40 PSI?”
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The XR designation on this nozzle stands for this.
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What is “extended range?”
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The percent overlap recommended for this type of nozzle.
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What is “30?”return
The two orifices here are oriented in these directions to improve penetration of the spray.
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What are “slightly forward and slightly backward?”
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This is the percentage by which your pesticide exposure is reduced when you use the PPE shown above.
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What is “85?”return
This is the very flexible, but strong, material commonly used now for certain PPE, like that shown here.
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What is “nitrile?”return
This lightweight material is a common fabric for suits like the one shown here.
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What is “tyvek?”return
You almost always need the type of PPE shown here when you are doing these two things.
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What are “mixing and loading?”
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The mask type of PPE shown here only protects you from inhalation of these two forms of pollutants.
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What are “mists and dusts?”
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This is the maximum time for which the cartridges in the type of PPE shown here are effective.
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What is “8 hours?”return
This is the five-word name for
this type of PPE. (FFAPR)
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What is “full face air purifying respirator”?
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This dual-function device is always located between the pump and the output site.
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What is a “pressure relief/regulator valve”?
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This type of nozzle uses a combination of off-center and other nozzles to produce a very wide spray swath up to 60 feet.
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What is a “boomless nozzle”?
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A graduated cup is used for this two-word process to make sure each nozzle on a boom is applying within a specified range.
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What is “measuring output?”
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This device, often installed between the tank and the pump, has a three-word name.
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What is “an in-line strainer”?
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Du to its unusual pattern, this nozzle type often is used in post-directed applications to spray up under crop foliage.
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What is an “off-center nozzle”?
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In addition to providing for quick-connect nozzle mounting, this assembly also has this inside to help prevent leakage.
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What is a “diaphragm check valve?”
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This is the complete four-word name for this device, which is rated as ”100.”
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What is a “100-mesh nozzle strainer”?
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On the spreader shown, this is the part that actually disperses the chemical.
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What is a “spinner?”
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The equipment and function, measured in GPM, that this device checks on a sprayer.
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What is “nozzle flow rate?”
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The output tolerance range, in percentages, for nozzles across
a boom
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What is “plus or minus 10 % of the average?”
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To double output you must do this to the pressure.
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What is “quadruple it?”
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The two-word name for the device shown below, which is very handy for preparing for accurate chemical application.
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What is a “calibration calculator?”
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