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Exam (elaborations)
CR-21 Landscaping and Irrigation Mock Exam With Correct Answers 2026/2027
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CR 21 Landscape
CR 21 Landscape
1. What is the primary function of a "Backflow Preventer" in an irrigation system? • A) To increase water pressure for far-reaching sprinklers. • B) To prevent contaminated water from flowing back into the potable water supply. • C) To filter out sand and debris. • D) To regulate the timing of the watering cycle. • Correct Answer: B. This is a critical safety component required by code to protect the public water system from fertilizers or chemicals. 2. Which type of soil h...
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