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12. What is the purpose of an NPDES permit? <br /> A. Allows you to sell hazardous chemicals such as diesel fuel <br /> B. Allows you to discharge water from a oil/water separator [Correct] <br /> C. It is the operating permit for an oil/water separator <br /> D. It is the operating permit for the fuel islands <br /> 13. Where is the "grit trap" located? <br /> A. Upslope of the trench drain <br /> B. In the center of the trench drain <br /> C. After the trench drain [Correct] <br /> D. After the oil/water separator <br /> 14. What is the purpose of the fuel island trench drains? <br /> A. To funnel anything spilled on the fuel islands to the holding tank. <br /> B. To funnel anything spilled on the fuel islands to the oil/water separator. [Correct] <br /> C. To store anything spilled on the fuel islands. <br /> D. To keep product from the oil/water separator. <br /> 15. Its okay to dispose of old fryer oil in the floor sinks, because the grease trap will catch it <br /> TRUE <br /> FALSE [Correct] <br /> 16. Grease as it cools: <br /> A. Is heavier than water <br /> B. Is lighter than water [Correct] <br /> C. Completely dissolves in water <br /> D. Evaporates into the air <br /> 17. Channeling is when solids: <br /> A. Clog the pipes coming into the grease trap <br /> B. Build up in the bottom of the trap [Correct] <br /> C. Cause TV signals to enter the trap <br /> D. Clog the pipes leaving the grease trap <br /> 18. What is the purpose of a "Sanitary T"? <br /> A. Keeps water from exiting the oil/water separator <br /> B. Funnels the oil to the holding tank <br /> C. Sends only clean water to the grease trap <br /> D. Funnels water only out of the separator [Correct] <br /> 4 <br />