New York City Food Protection Practice Test

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Prepare for the New York City Food Protection Test. Practice with interactive quizzes featuring multiple choice questions and detailed explanations. Boost your food safety knowledge and get ready to ace your exam!

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How can cross-connection in water supply be prevented?

  1. By using a pressure reducer

  2. By installing a hose-bib vacuum breaker

  3. By sealing the connections

  4. By avoiding any water connections

The correct answer is: By installing a hose-bib vacuum breaker

The installation of a hose-bib vacuum breaker is an effective method for preventing cross-connection in water supply systems. Cross-connections occur when non-potable water can flow back into potable water systems, risking contamination. A hose-bib vacuum breaker is designed to prevent backflow by creating an air gap when water is drawn from a source. This air gap prevents any contaminated water from being siphoned back into the clean water supply, effectively safeguarding public health. Using a pressure reducer doesn't address the potential for backflow, nor does sealing connections guarantee that water won't be contaminated or pushed back into the potable supply. Avoiding any water connections is impractical and unnecessary, as proper device installation can efficiently manage and prevent cross-connections without compromising the need for water use.

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