Test your basic knowledge |

Plumbing Code Basics

Subjects : industries, plumbing
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the maximum relief valve setting for cpvc (astm f441) hot water distribution?






2. May be used for distribution of hot potable water






3. Metallic drip pans shall be a minimum ____ gauge.






4. Cleanouts shall be installed at each change of direction - except not more than one shall be required in every ____ feet of run.






5. A vent stack shall be provided for drainage stacks having ____ or more branch intervals.






6. Used - untreated water that is flushed down toilets and urinals is called ____.






7. Lead caulked joints for cast-iron hub & spigot soil pipe shall be firmly packed with oakum or hemp & filled with molten lead not less than____'.

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8. What is the maximum relief valve setting for CPVC (ASTM F441) hot water distribution?






9. Minimum size building drain at 1/4' per foot for 45 drainage fixture units is _____.

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10. Plastic water closets shall comply with ANSI _____.






11. The test pressure on a gas system shall be no less than ____ times the proposed maximum working pressure - but not less than ____ psi.






12. What is the maximum length of a 2 inch trap arm?

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13. A vent stack shall be provided for drainage stacks having ____ or more branch intervals.






14. What is the maximum spacing between fixtures on a continuous waste?

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15. Plastic & copper piping run through framing member to within one inch of framing members shall be protected by steel nail plates not less than ____ gage.






16. What is the Drainage Fixture Unit value for a 3.5 gallon per flush flushometer water closet serving 3 or more dwelling units?






17. A 2 inch type L copper water branch shall be supported at _____ intervals.






18. What is the maximum horizontal distance between outlets on a combination fixture.

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19. What size soil stack is needed for a building with 25 branch intervals each branch having 18 Drainage fixture units?






20. A nursing home with 47 people would have a sewage flow rate of ____ gallons.






21. What size gas pipe is required for a 0.5 psi. gas pressure and a pressure drop of 0.5 inch water column 50 feet in length - serving 150 - 000 btu's?






22. Waste drainage from condensers or steam traps shall be cooled below ____ before being discharged indirectly into the sanitary drainage system.






23. The exit terminals of mechanical draft systems shall be not less than ____ ' above grade where located adjacent to public walkways.






24. The bottom of the inlet section for a sand interceptor shall be rated for flow rates up to ____ gpm.






25. The minimum distance from the garage floor to a gas appliance must be ____.

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26. Flexible plastic tubing shall be supported horizontally every ____'.

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27. What is the minimum pressure used to test gas piping with a working pressure less than 125 psi?






28. A water supply tank with a water supply line of 75gpm shall have an overflow pipe ____' in diameter.

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29. Water may not be discharged onto the drainage system if temperature exceeds _____ degrees F.






30. Can a laundry tub be discharged to a trap serving a kitchen sink?






31. Can a laundry tub be discharged to a trap serving a kitchen sink?






32. 80 degrees F is equal to ___ degrees C ?






33. What is the minimum vent size on a sump serving a macerating toilet system?

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34. Horizontal branch drain connections shall not be made within ____ pipe diameters from the base of the stack.






35. Must be installed so that a swing check valve controls the flow of rate






36. What shall be the weight of a lead shower pan with inside dimensions 3'x4' with a 6' turn-up on all sides?






37. Joints for potable water used in copper shall be made with a solder containing not more than ___% lead.






38. Each trailer site shall be provided with a ____ ips male or female threaded connection - extended above grade - from a ____ minimum size vented p-trap.






39. Vitrified clay pipe - (extra strength) - for use in sanitary waste & drain systems shall not be installed ____.






40. Type B gas vent with 240 - 000 btu must extend ____' above roof.

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41. What is the maximum square foot area that a window well can drain into a foundation drain?






42. Gas input ratings of appliances shall be used for elevations up to ____'.






43. Initial backfill of a trench shall be backfilled to a level not less than ____ above the top of pipe.

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44. What shall be the depth of lead required for a 3 inch cast-iron water pipe - bell and spigot?






45. Oil interceptors - waste oil tanks - oil pump-out connection - backwater valves - and atmospheric vent piping shall be?






46. Where does the building drain end and the building sewer begin?






47. What is the minimum discharge pipe size for a grinder pump which discharges 45gpm?

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48. What is the minimum trap size for a dental lavatory?

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49. What is the minimum drain size required to receive the discharge from a 3/4 inch Temperature and Pressure Valve from an 85 gallon hot water heater?






50. Initial backfill of a trench shall be backfilled to a level not less than ____ above the top of pipe.

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