What may indicate excessive pressure in sprayers?

Study for the Maryland Pesticide Applicator Category 3: Ornamental and Turf Test. Access study materials with flashcards and multiple choice questions, each with hints and explanations. Prepare thoroughly for certification!

Multiple Choice

What may indicate excessive pressure in sprayers?

Explanation:
Excessive pressure shows up when the system isn’t able to vent or regulate pressure properly. If the regulator is stuck closed, the pump keeps pushing against a closed path, so pressure in the lines climbs higher than intended. A faulty gauge can also misreport pressure, making you think the pressure is higher than it actually is or masking that it’s too high. Both issues point to a control problem in the sprayer, which is exactly what excessive pressure comes from. Worn seals, air leaks in the boom, and a low flow rate all lead to pressure loss or unstable spray rather than true excess pressure.

Excessive pressure shows up when the system isn’t able to vent or regulate pressure properly. If the regulator is stuck closed, the pump keeps pushing against a closed path, so pressure in the lines climbs higher than intended. A faulty gauge can also misreport pressure, making you think the pressure is higher than it actually is or masking that it’s too high. Both issues point to a control problem in the sprayer, which is exactly what excessive pressure comes from. Worn seals, air leaks in the boom, and a low flow rate all lead to pressure loss or unstable spray rather than true excess pressure.

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