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. The device for final conveyance of the gas air to the combustion zone is called a ____.






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






3. Venting systems shall be designed and installed so that at no time shall trap seals be subjected to a pneumatic pressure differential of more than ____ inch of water pressure.






4. Minimum gage of the tracer wire installed adjacent to underground gas piping is _____ AWG?






5. No ____ or ____ pumps shall be installed on any potable water supply.






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


7. A 3' horizontal drain at a 1/4' per foot grade would have a discharge velocity of ____.






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






9. Appliances shall not be installed on ____ unless the appliances are list for such installation.






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






11. What size water softener connection is required for two bathroom groups?


12. Underground gas piping not in conduit shall have a minimum cover of ____ inches.


13. May be used for distribution of hot potable water






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






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


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






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


18. May be used for distribution of hot potable water






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


20. Materials fr pvc sewer pipe & fittings installed for foundation and sub-soil drainage shall conform to ASTM ____.






21. What size drain pipe is needed to receive the discharge from 2 lavatories - 1 bidet - and 1 drinking fountain?


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






23. The height of water closet bowls intended for juvenile use shall be ____ to ____ high to the rim.






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






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


26. What is the water supply fixture units value for a domestic clothes washer in an individual dwelling unit?






27. Grease interceptors shall have a grease retention capacity of not less than ____ pounds for each gpm of flow.






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


29. 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?






30. A minimum test length for a gas pipe 1 - 500 cu ft is ____.






31. 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.






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






33. In a night club which holds 150 people - how many lavatories are needed in the woman's' restroom?






34. 150 - 000 btu/h category 1 fan assisted appliance with vertical run of 20' and a lateral run of 20' minimum vent using diameter of allow using type B wall vent is ____'.


35. Metered bends can only be used in gas piping system if the pressure is a maximum of ____ psi.






36. For Rodding - clean clearances for clean outs - 3' or larger is ____.


37. Rated flow velocities for grinder pump ejectors shall be not less than ____.






38. Vent connector located and serving appliances in an attic shall be ________ vent.






39. 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?


40. What size water softener connection is required for two bathroom groups?


41. Testing the plumbing system is basic principle # ____.






42. Vitrified clay pipe installed underground within buildings shall have ____' minimum earth cover.


43. A _____________ offers maximum resistance to flow of water while 45 degree elbow offers the least?






44. A chimney must pass through the roof at least ____'.


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


46. Mechanically formed tee fittings shall have depth stops provided ____ above the dimple that acts as a depth stop.


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


48. Underground gas piping not in conduit shall have a minimum cover of ____ inches.


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






50. What size vent stack is needed for a 160' tall building with 6 branch intervals each having 23 drainage fixture units per branch?