Wyoming Pesticide Applicator Certification Practice Test

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Study for the Wyoming Pesticide Applicator Certification Exam. Prepare with a variety of questions designed to test your knowledge of pesticide application, safety protocols, and regulations. Equip yourself with the tools you need to pass the exam and start your career in pesticide application!

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What is the LD50 range for Inhalation toxicity in the Hazard Class IV category?

Trace to 0.2
Trace to 2
Trace to 20
Greater than 20

The correct answer is: Greater than 20

The LD50 (Lethal Dose 50%) range for Inhalation toxicity in the Hazard Class IV category is greater than 20. This means that the amount or concentration of a substance needed to cause death in 50% of the test subjects is greater than 20 milligrams per cubic meter of air. While options A, B, and C all have the range starting at "Trace," signifying a small amount, they have different upper limits, making them incorrect. Option A has the range ending at 0.2, which is a much lower limit compared to option D. Option B has a limit of 2, which is also much lower than option D. Option C has a limit of 20, which is still lower than option D and falls within Hazard Class III.