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Test your basic knowledge |
Plumbing Code Basics
Start Test
Study First
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?
150 psi
1 1/4'
3/4 inch
18
2. May be used for distribution of hot potable water
25'
Outdoor - Underground.
12'
Galvanized pipe
3. Metallic drip pans shall be a minimum ____ gauge.
1 1/2; 3
119.47'
26 degrees
24 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'
40
1 1/2; 12
6'
5. A vent stack shall be provided for drainage stacks having ____ or more branch intervals.
10'
5
3
14 AWG
6. Used - untreated water that is flushed down toilets and urinals is called ____.
8 inch
18'
Black Water
12'
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?
10 feet
189.3 liters
1
150 psi
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 _____.
150 feet
Galvanized pipe
2'
Z 124.4
11. The test pressure on a gas system shall be no less than ____ times the proposed maximum working pressure - but not less than ____ psi.
4 inches
.2%
1 1/2; 3
1 1/2 '
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.
Outdoor - Underground.
air gap
4 inches
5
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.
15 - 18
10'
2 feet per second
18
16. What is the Drainage Fixture Unit value for a 3.5 gallon per flush flushometer water closet serving 3 or more dwelling units?
as close to the appliance a practical
4.0
26 degrees
10 feet
17. A 2 inch type L copper water branch shall be supported at _____ intervals.
41'
10 foot
1 - 762 gallons
45 - 40
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?
2'
75'
10'
4 inches
20. A nursing home with 47 people would have a sewage flow rate of ____ gallons.
Manometer
3 - 525
6'
3/4 inches
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?
3/4 inch
vacuum
2000
24 inches
22. Waste drainage from condensers or steam traps shall be cooled below ____ before being discharged indirectly into the sanitary drainage system.
840
10 feet
140 degrees
3 fps
23. The exit terminals of mechanical draft systems shall be not less than ____ ' above grade where located adjacent to public walkways.
4'
7
A). ASTM B828-92
1/2 hour; 500
24. The bottom of the inlet section for a sand interceptor shall be rated for flow rates up to ____ gpm.
10'
Grease Interceptors
150 feet
20
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?
Air - Nitrogen - carbon dioxide - or an inert gas
1 1/2 times working pressure
6 inches
240
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.
3 feet outside a building wall
Air - Nitrogen - carbon dioxide - or an inert gas
140 degrees
27 inches
30. Can a laundry tub be discharged to a trap serving a kitchen sink?
10 - 15
No.
12'
3
31. Can a laundry tub be discharged to a trap serving a kitchen sink?
5 inch
60'
6'
No.
32. 80 degrees F is equal to ___ degrees C ?
type B or L
26 degrees
Underground
840
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.
60 lbs
10
12'
5'
35. Must be installed so that a swing check valve controls the flow of rate
840
41'
condensate
Grease Interceptors
36. What shall be the weight of a lead shower pan with inside dimensions 3'x4' with a 6' turn-up on all sides?
3/4'
1 1/2 inch
80lbs
4 - 513 pounds
37. Joints for potable water used in copper shall be made with a solder containing not more than ___% lead.
10'
0.2
75'
C). Oxygen
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.
3 inch / 3 inch
32 inches
3
5'
39. Vitrified clay pipe - (extra strength) - for use in sanitary waste & drain systems shall not be installed ____.
type B or L
125
8
above ground - within building.
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?
Carpet
18'
25
10 feet
42. Gas input ratings of appliances shall be used for elevations up to ____'.
2000
24
2 feet per second
840
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?
air gap
2-1/4 inch
Neutralizing Device
3 inch
45. Oil interceptors - waste oil tanks - oil pump-out connection - backwater valves - and atmospheric vent piping shall be?
Water Service Piping
permanently identified by labels
60 lbs
vacuum
46. Where does the building drain end and the building sewer begin?
3 feet outside a building wall
8'
1 1/2 hours
Z 124.4
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?
2 inch
1
160
24 inches
50. Initial backfill of a trench shall be backfilled to a level not less than ____ above the top of pipe.
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