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Sample questions
When treating drinking water, what is the maximum allowable limit for applied metallic copper?
- 1 ppm
- 5% copper
- 12.5 ppm
- 12.9 ppm
Show answer
For drinking water, the label states applied metallic copper must not exceed 1 ppm.🔗 Source
Which of the following target pests is AlgimycinPWF designed to control?
- Algae and cyanobacteria
- Koi and hybrid goldfish
- Small volume garden pond organisms
- Dissolved organic carbon
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The product is described as an algaecide and cyanobacteriocide used to control a broad range of algae and cyanobacteria.🔗 Source
To prevent oxygen depletion in the water column, what is the restriction regarding the area treated?
- Do not treat more than 1/2 of the water body
- Do not treat any water with a pH less than 6.5
- Do not treat water with dissolved organic carbon
- Do not treat water during temperature inversions
Show answer
The label states: 'Do not treat more than 1/2 of the water body to avoid oxygen depletion.'🔗 Source
Which set of Personal Protective Equipment (PPE) is required when handling this product?
- Respirator, goggles, and chemical apron
- Long-sleeve shirt, long pants, shoes and socks, and waterproof gloves
- Face shield, rubber boots, and heavy-duty apron
- N95 mask, safety glasses, and nitrile gloves
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The required PPE listed is a long-sleeve shirt, long pants, shoes and socks, and waterproof gloves.🔗 Source
According to the label, where is AlgimycinPWF NOT intended to be used?
- Irrigation conveyance systems
- Small volume, garden pond systems
- Potable water reservoirs
- Canals and laterals
Show answer
The label explicitly states the product is not intended for small volume, garden pond systems.🔗 Source
In regions where ponds freeze in the winter, when should treatment be applied?
- Immediately after the freeze occurs
- When water temperature drops below 60°F
- 6 to 8 weeks before the expected freeze time
- During a temperature inversion in mid-winter
Show answer
In regions where ponds freeze in winter, the label says to treat 6 to 8 weeks before expected freeze time.🔗 Source
How should a technician determine the correct dosage for a specific application?
- Apply a flat rate of 5% copper per acre
- Use Table 1 and Table 2 to find required PPM, then convert via Table 3
- Apply until the water temperature reaches 60°F
- Maintain a constant concentration of 15 mph
Show answer
Dosage is determined using Table 1 (by genera) and Table 2 (by growth form/abundance) to find the required PPM, then converted via Table 3.🔗 Source
Under which weather conditions should a technician avoid applying AlgimycinPWF?
- When water temperature is above 60°F
- When wind speeds are greater than 15 mph
- When the water is in a canal or ditch
- When the water contains low dissolved organic carbon
Show answer
The label instructs to avoid application during temperature inversions or when wind speeds are greater than 15 mph.🔗 Source
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