Nozzles within 5% of each other on average refers to:

• A. 1%
• B. 5%
• C. 10%
• D. 15%

Answer: (B)

Uniform nozzle discharge means keeping the flow from each nozzle close to the others. When we say nozzles are within 5% of each other on average, we’re describing a five percent tolerance for that uniformity—the average difference from the mean flow rate across all nozzles should be no more than five percent. This level helps ensure even coverage and prevents areas from being over- or under-applied. A tighter tolerance like 1% is harder to achieve and not usually required, while looser tolerances such as 10% or 15% would lead to noticeable unevenness.