Plumbing Code Basics

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. Vacuum breakers for bed pan washers shall be not less than ____ above the floor.
10 pipe diameters
60 lbs
3'
5 feet


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

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3. Pressure tanks & vessels shall be durable material & constructed to withstand ____ psig.
D2729
125
Black Water
12'


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

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5. Vent pipes in trailer parks shall be located at least ____ above grade.
3/4'
10 feet
Z 124.4
.2%


6. 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?

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

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8. Test duration shall not be less than ____ hour for each ____ ' of pipe volume or fraction thereof.
119.47'
27 inches
18
1/2 hour; 500


9. No ____ or ____ pumps shall be installed on any potable water supply.
150 psi
pitcher - chain bucket
8'
3 inches


10. 80 degrees F is equal to _____ degrees C.
12'
90 degrees to 105 degrees
26 degrees
150 psi


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

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

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13. Potable hot water shall be at a temperature of not less than ____ and not more than_____.
1 1/4'
120 degrees to 140 degrees
10 - 15
7


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

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

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

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17. What is the minimum condensate pipe size for a 300 ton cooling unit?

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18. May be used for distribution of hot potable water
6
8 inch
Galvanized pipe
7


19. What size pipe is needed for a combination waste and vent stack with a total of 400 drainage fixture units at 1/4 inch per foot slope?
8 inch
2'
6
1 1/2 inch


20. Vent connector located and serving appliances in an attic shall be ________ vent.
120 degrees to 140 degrees
type B or L
3
Carpet


21. Cleanouts shall be installed at each change of direction - except not more than one shall be required in every ____ feet of run.
40
12'
C). Oxygen
10 pipe diameters


22. A 3' horizontal drain at a 1/4' per foot grade would have a discharge velocity of ____.
3 fps
air gap
18 - 48
2'


23. What is the maximum length you can run a 1 1/2 inch vent off a 75 gallon per minute sump pump?

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24. Minimum gage of the tracer wire installed adjacent to underground gas piping is _____ AWG?
24'
5'
5
14 AWG


25. What is the maximum drainage fixture units permitted on a 6 inch sewer at 2% (1/4 inch) grade?
4.0
840
2 1/2'
45 - 40


26. Water distribution piping shall be pressure rated for not less than ____ psig.
24'
2 feet per second
160
27 inches


27. A 50 gallon water heater when filled - would hold ____ liters of water?
10'
3'
189.3 liters
41'


28. Vent pipes in trailer parks shall be located at least ____ above grade.
Galvanized pipe
12'
6 inches
10 feet


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

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

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

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32. What is the minimum size floor drain required where sterilizers are located?
10'
4 inches
2'
3 inches


33. The water supply to a carbonated beverage dispenser shall be protected against back flow by means of a ASSE #____.
Black Water
24 inches
18
1022


34. The bottom of the inlet section for a sand interceptor shall be rated for flow rates up to ____ gpm.
A). ASTM B828-92
20
test the appliances
'Type B' gas vents


35. Traps shall be provided at fixtures & equipment connections where the developed length of indirect waste piping exceeds ____ feet.

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36. If gas equipment is not provided with a _____________ - the device must be attached to the equipments' flue collar or as near to the equipment as practical.
draft hood
12'
24'
15 - 18


37. Gas input ratings of appliances shall be used for elevations up to ____'.
vacuum
2000
15 - 18
1 1/2 times working pressure


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

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39. Plastic pipe - tubing and fittings used to supply fuel gas shall be used ____ and ____ only.
Outdoor - Underground.
10 pipe diameters
9 1/2'-- 10 1/2'
Within the building


40. Can a laundry tub be discharged to a trap serving a kitchen sink?
No.
Within the building
permanently identified by labels
18'


41. Rectangular shower compartments may have a rough-in dimension width of what?
40
3
27 inches
C). Oxygen


42. Metallic drip pans shall be a minimum ____ gage.
5 inch
Burner
12'
24


43. Water piping for the distribution of hot or cold water within buildings shall be of materials rated for not less than_____ psig.
300'
75'
100
12


44. When testing the drainage and vent system they shall be submitted to a test of ____ feet head of water for at least ____ minutes.
.2%
10 - 15
13
5 feet


45. Soil and drain pipes located above food handling areas shall be subjected to a standing water test of not less than ____ feet.
3
1 - 762 gallons
25
test the appliances


46. Where sump pumps for a foundation drain are installed - the minimum discharge pipe from sump is ____'.

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47. A chimney passing through a flat roof must have how much clearance above and horizontally from the chimney?
3 feet above and 10 feet horizontally
2'; 1 1/2'
1 1/2 '
A). ASTM B828-92


48. When connecting additional gas pipe - check for...
16
13
10'
adequate capacity


49. Used - untreated water that is flushed down toilets and urinals is called ____.
1 1/2 '
air gap
5'
Black Water


50. The test pressure on a gas system shall be no less than ____ times the proposed maximum working pressure - but not less than ____ psi.
16
4 inches
3 inch
1 1/2; 3