Texas Pesticide Applicator General Standards Exam, Application Equipment: all 30 questions

All questions from the Application Equipment section for Texas Pesticide Applicator General Standards Exam, each with the correct answer.

6001Which type of pump is damaged most quickly by abrasive materials such as wettable powders?
6002A centrifugal pump is best described as a pump that delivers
6003Which pump is most often chosen when a sprayer must reach high pressures, such as for hand-gun spraying of tall trees?
6004What is the main benefit of a diaphragm pump when spraying chemicals that are corrosive or abrasive?
6005On a typical sprayer, which screen should have the LARGEST openings?
6006A strainer screen is labeled 50 mesh. What does a HIGHER mesh number mean?
6007Which formulation needs the MOST continuous agitation in the spray tank?
6008What is the purpose of a pressure relief valve on a sprayer?
6009A flat fan nozzle is most commonly used for
6010Which nozzle type is typically chosen for foliar fungicide and insecticide sprays that need thorough coverage of the leaf surface?
6011Flood nozzles are generally used for
6012Which nozzle is designed to give an even pattern across a narrow band over a crop row?
6013As a nozzle tip wears from use, what usually happens?
6014Which nozzle tip material generally resists wear from abrasive sprays the longest?
6015What is the effect of raising spray pressure on droplet size?
6016Which equipment choice is most likely to reduce drift?
6017What is the best protection against back-siphoning when filling a sprayer tank from a well or hydrant?
6018Why is a hose end resting below the liquid surface in a spray tank a hazard?
6019Compared with a rotary (centrifugal) spreader, a drop (gravity) spreader
6020Why must a granular applicator be calibrated separately for each product?
6021Which device on a chemigation system automatically shuts down the chemical injection pump when the irrigation pump stops?
6022Before using a pesticide through an irrigation system (chemigation), the applicator must first confirm that
6023When the boom height is set too LOW on a flat fan boom sprayer, the most likely result is
6024An air-blast sprayer is mostly used in
6025Why do backpack sprayers with hand pumps often have a constant-flow valve or pressure regulator?
6026Why should sprayer tanks and hoses be cleaned thoroughly after applying a herbicide?
6027What does an anti-drip (check valve) nozzle body do?
6028A closed mixing and loading system mainly helps by
6029Mechanical agitation in a spray tank is provided by
6030Before each spraying day, the best time to find a leaking hose or fitting is

Texas Pesticide Applicator General Standards Exam, Application Equipment: all 30 questions

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