Structural Pest Control Applicator Practice Exam

If a hand sprayer holds 1 gallon and it takes 4 ounces of the spray mix to treat 100 square feet, how many square feet could you treat?

1. 1,600

2. 3,200

3. 6,400

4. 8,000

The correct answer is: 3,200

To determine how many square feet can be treated with a hand sprayer that holds 1 gallon, we first need to convert the volume of the sprayer into ounces since the application rate is given in ounces. There are 128 ounces in 1 gallon. If the spray mix requires 4 ounces to treat 100 square feet, we can calculate how many 4-ounce applications can be made with 128 ounces. Dividing the total amount of mix (128 ounces) by the amount needed per 100 square feet (4 ounces) gives us: 128 ounces / 4 ounces/application = 32 applications. Since each application covers 100 square feet, we multiply the number of applications by the area covered per application: 32 applications × 100 square feet/application = 3,200 square feet. Thus, with a 1-gallon hand sprayer and a rate of 4 ounces per 100 square feet, you can treat a total of 3,200 square feet. This calculation confirms that the correct answer is indeed 3,200 square feet.