Thirty-two ounces of water was collected from one spray nozzle in 30 seconds. What is the nozzle delivery rate in gallons per minute?

To determine the nozzle delivery rate in gallons per minute, it's essential to convert the volume of water collected from ounces to gallons and then find out how many gallons are delivered in one minute.

First, knowing that there are 128 ounces in a gallon, we convert the 32 ounces collected into gallons:

32 ounces ÷ 128 ounces per gallon = 0.25 gallons

Next, since the water was collected in 30 seconds, we need to convert that time into minutes to find the rate in gallons per minute. There are 60 seconds in a minute, so:

30 seconds is half a minute (30 seconds ÷ 60 seconds per minute = 0.5 minutes).

Now, we can find the delivery rate:

0.25 gallons ÷ 0.5 minutes = 0.5 gallons per minute (GPM).

This calculation shows that the correct nozzle delivery rate is indeed 0.5 GPM. Understanding the steps involved in converting ounces to gallons and calculating the rate over time is crucial in pest control applications where accurate measurements of fluid delivery are necessary for efficacy and safety.