What is the legal authority governing: "Why should an applicator NEVER use a metal pin, nail, or kni..."?

This standard is governed by Core Standards Chapter 9 under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and 40 CFR Part 171.

What is the passing score for the EPA Pesticide Applicator exam?

The minimum passing score for the National Core Pesticide Applicator Certification exam is 70% (40 CFR § 171.103).

Spray Equipment And Calibration EASY Core Standards Chapter 9

Why should an applicator NEVER use a metal pin, nail, or knife blade to clean a clogged spray nozzle orifice?

Multiple Choice Options

A Metal tools distort and damage the precision-machined orifice, ruining the spray pattern and drastically increasing nozzle flow rate. ✓ OFFICIAL VERIFIED CORRECT ANSWER

B Metal tools cause the plastic spray tank to freeze.

C The pesticide active ingredient will ignite metal pins.

D Metal pins attract lightning strikes.

Core Standards Chapter 9

Official Manual Chapter: Chapter 9: Equipment Maintenance

Metal tools gouge nozzle orifices, destroying pattern uniformity and output. Only a soft-bristled nylon toothbrush or compressed air should be used.

Official EPA Core Study Domain Spray Equipment And Calibration

Practice All Domain Questions →

Why should an applicator NEVER use a metal pin, nail, or knife blade to clean a clogged spray nozzle orifice?

Multiple Choice Options

Related Questions in Spray Equipment And Calibration