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Sample questions
How should a technician calculate the application rate for SonarPR?
- Based on the weight of the plants present.
- Based on the total volume of the lake only.
- Based on average water depth and desired ppb concentration.
- Based on the surface area of the pond.
Show answer
The mixing and dilution section notes: 'Rates are calculated based on average water depth and desired ppb concentration.'🔗 Source
When irrigating crops with water treated with SonarPR, what must be observed to prevent plant injury?
- The time of year the water is used.
- The specific concentration of the water.
- Specific time frames must be observed.
- The depth of the water source.
Show answer
The text states: 'When irrigating crops, specific time frames must be observed to prevent injury to vegetation.'🔗 Source
According to the product description, which of the following is NOT a listed site for the management of aquatic vegetation using SonarPR?
- Potable water sources
- Irrigation canals
- Drainage canals
- Saltwater estuaries
Show answer
The text specifies use in fresh water ponds, lakes, reservoirs, potable water sources, drainage canals, irrigation canals, and rivers.🔗 Source
Which statement regarding personal protective equipment (PPE) and handling is correct for SonarPR?
- The product is corrosive to application equipment.
- Avoid breathing dust or contact with skin, eyes, or clothing.
- It is only harmful if swallowed.
- Wash hands with alcohol instead of soap and water.
Show answer
The PPE section states: 'Avoid breathing dust or contact with skin, eyes, or clothing. Wash thoroughly with soap and water after handling.'🔗 Source
When applying SonarPR in a lake or reservoir near a functioning potable water intake, what is the maximum application rate allowed within 1/4 mile of that intake?
- 20 ppb
- 45 ppb
- 90 ppb
- 150 ppb
Show answer
The label states: 'Do not apply in lakes/reservoirs at rates >20 ppb within 1/4 mile of a functioning potable water intake.'🔗 Source
What is a factor that influences the selectivity of SonarPR when controlling submerged plants?
- Water pH levels
- Water depth only
- Dosage, time of year, stage of growth, and water movement
- The salinity of the water source
Show answer
The label notes: 'Selectivity depends on dosage, time of year, stage of growth, and water movement.'🔗 Source
When applying SonarPR in a lake or reservoir, what is the maximum annual application rate allowed?
- 45 ppb
- 90 ppb
- 150 ppb
- 20 ppb
Show answer
The label states a maximum annual application rate of 90 ppb in ponds and 150 ppb in lakes and reservoirs.🔗 Source
In New York State, what is the restriction regarding water depth for SonarPR application?
- Do not use in waters less than 1 foot deep.
- Do not use in waters less than 2 feet deep without special registration.
- Do not use in waters less than 5 feet deep.
- No depth restrictions are mentioned for NY State.
Show answer
The label states: 'Do not use in waters less than 2 feet deep in NY State without special registration.'🔗 Source
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