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Sample questions
What is the required Personal Protective Equipment (PPE) for mixers, loaders, and applicators?
- Long-sleeved shirts, long pants, shoes, and socks
- Chemical resistant gloves, goggles, and a respirator
- Short-sleeved shirts, shorts, and rubber boots
- Full Tyvek suit and face shield
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The PPE section requires long-sleeved shirts, long pants, shoes, and socks.🔗 Source
If tank mixing Harpoon with Cutrine-Plus, what is the maximum allowable total copper concentration?
- 1.0 ppm copper
- 0.5 ppm copper
- 1.5 ppm copper
- 2.0 ppm copper
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The mixing notes state that if mixing with Cutrine-Plus, do not exceed 1.0 ppm total copper.🔗 Source
Where is Harpoon intended to be used?
- Slow-moving or quiescent bodies of water
- Fast-moving rivers and streams
- High-flow irrigation canals
- Oceanic saltwater environments
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The product description specifies it is designed for slow-moving or quiescent bodies of water.🔗 Source
Under what environmental conditions should Harpoon be applied for optimal results?
- Early in the day under bright/sunny conditions with water at least 60°F
- Late in the evening under cloudy conditions with water at least 50°F
- During high wind speeds to ensure aeration
- At night when water temperatures are at their highest
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For optimal results, the label recommends applying in the early day under bright/sunny conditions when water temperatures are at least 60°F.🔗 Source
Which of the following plant families is Harpoon specifically noted to be effective against?
- Hydrocharitaceae and Potamogetonaceae
- Salvinaceae and Myriophyllaceae
- Nymphaeaceae and Elodeaceae
- Ceratophyllaceae and Potamogetonaceae
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The label states Harpoon is effective against species in the Hydrocharitaceae family and the Potamogetonaceae family.🔗 Source
In water with low hardness (less than 150ppm calcium hardness), which species is permitted for treatment?
- Myriophyllum spicatum
- Water Hyacinth
- Giant Salvinia
- Hydrilla
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In low hardness water, the product is limited to specific species including Myriophyllum spicatum, Stuckenia pectinata, and Potamogetonus nodosus.🔗 Source
When applying Harpoon, what is the recommended maximum amount of the water body to treat at one time to prevent oxygen depletion?
- 1/3 to 1/2 of the water body
- 1/4 of the water body
- Exactly 1/2 of the water body
- Up to 3/4 of the water body
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To avoid oxygen depletion from decaying vegetation, the label instructs to treat only 1/3 to 1/2 of the water body at a time.🔗 Source
Which application method is restricted if efficacy is needed at depths below 4 feet?
- Aerial application
- Subsurface application via weighted trailing hose
- Boat sprayers
- Backpack spray equipment
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The restrictions state: 'Do not apply by aircraft if efficacy is needed at depths below 4 feet.'🔗 Source
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