CSLB Class B General Contractor's License Practice Exam

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Prepare for the CSLB Class B General Contractor's License Test with interactive flashcards and multiple choice questions. Each question offers hints and explanations to enhance your understanding and readiness for the exam.

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What does the term greywater refer to?

  1. Water that is grey in color

  2. Water that has not come in contact with feces

  3. A plumbing term describing the city connection

  4. A waste management term for untreated water

The correct answer is: Water that has not come in contact with feces

Greywater refers specifically to wastewater that has not come into contact with human waste, such as the water from sinks, showers, baths, and washing machines. This type of water is distinct from blackwater, which does include sewage and poses a greater health risk. Greywater can be reused for irrigation and other non-potable applications because it often contains fewer pathogens and organic materials compared to blackwater. This understanding is essential for contractors and builders, especially when it comes to plumbing design and water conservation practices. Recognizing the difference between greywater and other types of wastewater is crucial for compliance with environmental regulations and for the implementation of sustainable practices in construction projects.