Water supply sizing, pressure requirements, and distribution system rules tested on plumbing licensing exams.
About this set
30 basic cards for Plumbing Licensing Plumbing Licensing. Set 7 of 7 in Plumbing Licensing. It opens with "What is the minimum water pressure at a fixture outlet according to code?" and "What is the maximum static water pressure before a pressure reducer is required?". Study it alongside the other Plumbing Licensing sets below.
30 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the minimum water pressure at a fixture outlet according to code?
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20 psi- What is the maximum static water pressure before a pressure reducer is required?
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80 psi- Define a fixture unit in plumbing.
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A standardized measure of the water demand and drainage load of a plumbing fixture- How is water demand calculated for a building's supply system?
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By converting all fixtures to fixture units and consulting demand tables- What is the purpose of a backflow preventer?
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To prevent contaminated water from flowing backward into the potable water supply- What device reduces high water pressure in a supply line?
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Pressure regulator or pressure reducing valve- When is a backflow preventer required at the building entrance?
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When internal system pressure exceeds 80 psi or as required by local code- What is the minimum hot water temperature supplied to fixtures?
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110 degrees Fahrenheit- What is the maximum temperature of hot water delivered to prevent scalding?
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120 degrees Fahrenheit- What is an expansion tank used for in a water system?
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To accommodate water expansion from heating and prevent excessive pressure buildup- What type of valve only allows water to flow in one direction?
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Check valve- Define residual pressure in a water distribution system.
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The water pressure at a fixture while water is actively flowing out- What is static pressure in a water system?
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Water pressure in the system when no water is flowing- What is the purpose of a water meter in the supply system?
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To measure and record the volume of water consumption- What is a water service line?
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The supply pipe connecting the public water main to the building entrance
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