National Pesticide Applicator Certification Core Manual
Chapter 4 Questions with Correct Answers
The name "X-Pest 5G" on a pesticide label indicates a: - CORRECT ANSWER -Granular pesticide
with 5% active ingredient.
Which is the pesticide formulation process by which solid particles are dispersed in a liquid? -
CORRECT ANSWER -Suspension
Which liquid pesticide consists of a small amount of active ingredient (often 1% or less per unit
volume)? - CORRECT ANSWER -Ready-to-use (low concentrate) solution (RTU).
Which liquid pesticide formulation may approach 100% active ingredient? - CORRECT ANSWER -
Ultra-low volume (ULV).
Which is a disadvantage of both EC and ULV formulations? - CORRECT ANSWER -Solvents may
cause rubber or plastic hoses, gaskets, pump parts, and other surfaces to deteriorate.
Which dry/solid formulation is mixed in water and reduces the risk of inhalation exposure
during mixing and loading? - CORRECT ANSWER -Water-dispersible granule (WDG) or dry
flowable (DF).
Which type of dry/solid pesticide formulation consists of particles that are the same weight and
shape? - CORRECT ANSWER -Pellet
Which is an advantage of microencapsulated materials? - CORRECT ANSWER -Delayed or slow
release of the active ingredient prolongs their effectiveness.
WhichWtypeWofWadjuvantWfunctionsWasWaWwettingWagentWandWspreaderW(i.e.,WphysicallyWalteringWt
heWsurfaceWtensionWofWsprayWdroplets)?W-WCORRECTWANSWERW-Surfactant
Chapter 4 Questions with Correct Answers
The name "X-Pest 5G" on a pesticide label indicates a: - CORRECT ANSWER -Granular pesticide
with 5% active ingredient.
Which is the pesticide formulation process by which solid particles are dispersed in a liquid? -
CORRECT ANSWER -Suspension
Which liquid pesticide consists of a small amount of active ingredient (often 1% or less per unit
volume)? - CORRECT ANSWER -Ready-to-use (low concentrate) solution (RTU).
Which liquid pesticide formulation may approach 100% active ingredient? - CORRECT ANSWER -
Ultra-low volume (ULV).
Which is a disadvantage of both EC and ULV formulations? - CORRECT ANSWER -Solvents may
cause rubber or plastic hoses, gaskets, pump parts, and other surfaces to deteriorate.
Which dry/solid formulation is mixed in water and reduces the risk of inhalation exposure
during mixing and loading? - CORRECT ANSWER -Water-dispersible granule (WDG) or dry
flowable (DF).
Which type of dry/solid pesticide formulation consists of particles that are the same weight and
shape? - CORRECT ANSWER -Pellet
Which is an advantage of microencapsulated materials? - CORRECT ANSWER -Delayed or slow
release of the active ingredient prolongs their effectiveness.
WhichWtypeWofWadjuvantWfunctionsWasWaWwettingWagentWandWspreaderW(i.e.,WphysicallyWalteringWt
heWsurfaceWtensionWofWsprayWdroplets)?W-WCORRECTWANSWERW-Surfactant
