TCEQ Installer II Practice Test 2025 – 400 Free Practice Questions to Pass the Exam

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What angle is generally accepted for nozzle trajectory performance under standard conditions?

15 degrees

The angle generally accepted for nozzle trajectory performance under standard conditions is 15 degrees. This angle is recognized as optimal for achieving effective coverage and penetration of the irrigation system into a target area while minimizing the effects of wind drift and evaporation. At this angle, the trajectory of the water is low enough to maintain a solid stream, ensuring that water reaches the intended area without being overly dispersed.

A higher angle of trajectory might increase the area covered but can lead to increased evaporation losses or being influenced by wind, which can lessen the efficiency of irrigation. Conversely, a much lower angle may not provide adequate distance or coverage, indicating that the 15 degrees strikes a balance between performance efficiency and effective water delivery for irrigation systems.

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25 degrees

35 degrees

45 degrees

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