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 minimum size floor drain required where sterilizers are located?






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


3. If supply line of tank is 450 GPM then the I.D. of pipe must be at least ____ inches.


4. Except for clear-water wastes - traps shall be provided at fixtures and equipment connections where the length of indirect waste piping exceeds_____.






5. The test medium of a gas system shall be____.






6. Underground gas piping systems shall be installed with a minimum of ____' of cover.






7. Soil and drain pipes located above food handling areas shall be subjected to a standing water test of not less than ____ feet.






8. The vertical distance from the fixture outlet to the trap weir shall not exceed ____.


9. Well pumps located in a basement shall have the pump and suction pipes at least ____ inches above the floor.


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






11. When testing the drainage and vent system they shall be submitted to a test of ____ feet head of water for at least ____ minutes.






12. What is the maximum length for a 3' trap arm?


13. Except for clear-water wastes - traps shall be provided at fixtures and equipment connections where the length of indirect waste piping exceeds_____.






14. Water closet bowls intended for children's use ages 5 and younger shall be approximately ____ high.











































































































































































































































































































































































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






16. Combination stop and waste valves shall be prohibited where?






17. The threaded portion of 1' gas pipe is ____ inches?


18. A chimney passing through a flat roof must have how much clearance above and horizontally from the chimney?






19. A ________ exists when pressure is less than pressure exerted by the static atmosphere?






20. Conductor is a storm pipe_____.






21. What size storm sewer is needed for a building with a roof 45 feet wide and 85 feet long at 1/8 inch slope - located in boise - Idaho?


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






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






24. What is the approximate length of threaded portion and approximate number of threads to be cut for a 3' pipe?






25. If the invert elevation at the first clean out on a 4' sewer is 120.25' - what would be the invert downstream at the second clean out at minimum slope of .125?


26. What is the maximum drainage fixture units permitted on a 6 inch sewer at 2% (1/4 inch) grade?






27. What size storm sewer is needed for a building with a roof 45 feet wide and 85 feet long at 1/8 inch slope - located in boise - Idaho?


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






29. Sterilzer in hospital surgical room has water waste connection must be disposed through an indirect connection to the drainage system by means of an ____.






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






31. In a hospital the minimum diameter for recess room floor drain waste trap is ____'


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






33. 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____'.


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






35. What size sewer is needed for 230 Drainage Fixture Units' at 1/4' per foot grade?


36. What is the maximum length for a 3' trap arm?


37. At offsets greater than ____ degrees from vertical - a suds pressure zone shall extend ____ pipe diameters up the stack above the offset.






38. When testing a gas system - which can not be used? A). Air. B). Nitrogen. C). Oxygen. or D). B or C?






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






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






41. Plastic water supply shall use a wall sleeve not less than ____ long.


42. A sewer runs 375' long at 3% grade - how many inches is the drop?


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


44. An approved pressure reducing valve shall be provided where it is required to limit the water supply pressure but shall be no more than ____ psi.






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


46. Where sump pumps discharge at grade on unpaved surfaces - splash blocks at least ____ long shall be used.






47. On a threaded piece of 1 1/4 inch black steel gas pipe - How many threads should be cut on the pipe?






48. Light & ventilation falls under basic principle #____.






49. What is the minimum size floor drain required where sterilizers are located?






50. The distance between manholes shall not exceed ___ feet.