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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. The bottom of the inlet section for a sand interceptor shall be rated for flow rates up to ____ gpm.
12
1 - 762 gallons
above ground - within building.
20

2. Light & ventilation falls under basic principle #____.
6'
2'
10 1/2 inches to 13 1/2 inches
16

3. A vent stack shall be provided for drainage stacks having ____ or more branch intervals.
Within the building
5
Underground
Water Service Piping

4. Vent connector located and serving appliances in an attic shall be ________ vent.
type B or L
125
100
4.0

5. How many gallons of water would be in a tank which was 5' in diameter - 16' tall - and 3/4 full?
3/4 inches
18'
1 - 762 gallons
9 1/2'-- 10 1/2'

6. A septic tank's inside measurements are 8 feet - 6 inches long; 4 feet - 2 inches wide; 4 feet - 8 inches deep; with an 8 inch air space. The septic tank would have a liquid capacity of ____ gallons.
1 1/4'
1 - 060
7/8'
Water Service Piping

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

8. A drip shall not be located where the ____ is likely to freeze.
30'
6 inches
condensate
10 feet

9. The distance from the outlet of the water closet to the connection of the wet vent shall be ____ feet vertical and ___ feet horizontal.
permanently identified by labels
Z 124.4
30'
3 - 9

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

11. The bottom of the inlet section for a sand interceptor shall be rated for flow rates up to ____ gpm.
12'
20
8'
draft hood

12. Light & ventilation falls under basic principle #____.
10 1/2 inches to 13 1/2 inches
1
16
12'

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

14. Oil interceptors - waste oil tanks - oil pump-out connection - backwater valves - and atmospheric vent piping shall be?
2 feet
5'
permanently identified by labels
Galvanized pipe

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

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

17. Joints for potable water used in copper shall be made with a solder containing not more than ___% lead.
0.2
150 feet
30'
5

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

19. A sewage ejector or sewage pump receiving discharge of water closets or urinals shall have a minimum discharge of ____ gallons per minute.
12'
20
10 feet
300'

20. Used - untreated water that is flushed down toilets and urinals is called ____.
Black Water
above ground - within building.
12'
2 inch

21. The building drain discharges soil & waste from the building & conveys it to the building sewer beginning ____ outside the building wall.

22. Water closet bowls intended for children's use ages 5 and younger shall be approximately ____ high.
3 inch / 3 inch
No.
12'
60 lbs
5 inch
18 - 48
3 - 525
119.47'
5'
15
pitcher - chain bucket
24 gauge.
Manometer
80 psi
3 - 525
840
D2729
7/8'
80lbs
140 degrees
2'; 1 1/2'
2-1/4 inch
10 feet
24
2 inch
type B or L
10'
12'
1 - 762 gallons
41'
Outdoor - Underground.
1 - 060
3/4'
18'
8 inch
6'
5 feet
150 psi
27 inches
3 inch
pitcher - chain bucket
3'
2000
4 - 513 pounds
1/2 hour; 500
12'
vacuum
2'
32'
1 1/2 inch
5'
150 psi
12'
24'
30'
2000
8
Galvanized pipe
3
1 - 060
7
1 1/2; 3
4 - 513 pounds
25
globe valve
above ground - within building.
Within the building
41'
2 feet
30'
32'
24'
1 1/2 '
20
12'
12
A). ASTM B828-92
3
Z 124.4
20
3/4'
50 psi
1
permanently identified by labels
.2%
Black Water
240
16
115 gallons
3 inches
air gap
draft hood
15 - 18
840
3/4 inches
2'; 1 1/2'
30'
4 inches
4'
Air - Nitrogen - carbon dioxide - or an inert gas
3/4 inches
1
14 AWG
1 1/4'
25'
7/8'
draft hood
150 psi
type B or L
12'
24'
1/2 hour; 500
4.0
60'
13
5'
Water Service Piping
135'
840
6'
4'
2'
24'
189.3 liters
5'
160
60'
25
125
4'
1 1/2 inch
Burner
Grease Interceptors
300'
D2729
10'
Within the building
30'
C). Oxygen
3/4 inch
1/4'
10'
24 inches
4 inches
Air - Nitrogen - carbon dioxide - or an inert gas
15 - 18
8 inch
1 - 762 gallons
18'
Grease Interceptors
test the appliances
26 degrees
Burner
7
0.2
4'
vacuum
140 degrees
5'
2 feet per second
3
45 - 40
2 1/2'
24 inches
6
240
25'
24'
14 AWG
2 feet
1 1/2; 12
Z 124.4
12'
3 feet above and 10 feet horizontally
air gap
32 inches
3/4'
11
1 1/4'
40
4.0
10 feet
10 foot
6
160
12'
as close to the appliance a practical
'Type B' gas vents
10'
3'
Underground
45 - 40
10 feet
5 inch
30'
120 degrees to 140 degrees
2 feet per second
26 degrees
90 degrees to 105 degrees
115 gallons
2 inch
condensate
2 1/2'
100
10 feet
12'
3 fps
Manometer
2'
10'
12
12'
5'
1 1/4'
Galvanized pipe
300'
Underground
Outdoor - Underground.
20
10 pipe diameters
above ground - within building.
Within the building
3 feet above and 10 feet horizontally
12'
3
4.0
30'x 2
135'
adequate capacity
test the appliances
10
2'
9 1/2'-- 10 1/2'
5
5
840
6 inches
3/4 inches
18'
30'x 2
8'
10 1/2 inches to 13 1/2 inches
1 1/2 hours
150 psi
3/4 inches
4'
9 1/2'-- 10 1/2'
120 degrees to 140 degrees
3/4'
60 lbs
10 - 15
125
2'
adequate capacity
4'
26 degrees
6'
8
1 1/2; 3
3 - 9
12'
10'
10 feet
24'
2-1/4 inch
119.47'
16
4'
24
24 gauge.
1 1/2 times working pressure
40
C). Oxygen
1 1/2 '
5
Carpet
2 lbs.
10 feet
1 1/2 hours
2'
2'
30'
80 psi
90 degrees to 105 degrees
10 pipe diameters
No.
6 inches
10 1/2 inches to 13 1/2 inches
75'
2 lbs.
5 feet
11
5
2'
140 degrees
'Type B' gas vents
13
32 inches
3
1 1/2; 12
18
18'
.2%
1022
26 degrees
1 1/4'
3
6'
as close to the appliance a practical
Neutralizing Device
0.2
10 - 15
Black Water
150 feet
140 degrees
1'
27 inches
#13
Within the building
3/4 inch
15
18
1/4'
150 feet
3 inch / 3 inch
3 - 9
20
8'
Carpet
4.0
75'
condensate
3 inch
12'
4'
A). ASTM B828-92
10'
1022
globe valve
3 fps
80lbs
10
10 foot
3 inches
1 1/2 times working pressure
100
18 - 48
3'
1'
3 feet outside a building wall
9 1/2'-- 10 1/2'
Neutralizing Device
Water Service Piping
50 psi
12'
#13
3'
10'
189.3 liters
3 feet outside a building wall
permanently identified by labels

23. Where a vent terminal is within 10 feet horizontally of a ventilation opening it shall be at least ____ feet above the top of the opening.
13
16
air gap
2 feet

24. Torque wrenches are set to release at ____ lbs.
60 lbs
No.
10 1/2 inches to 13 1/2 inches
20

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

26. On a threaded piece of 1 1/4 inch black steel gas pipe - How many threads should be cut on the pipe?
12'
10 foot
C). Oxygen
11

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

28. A standpipe shall extend a minimum ____' and a maximum ____' above the trap.
10'
18 - 48
8
60'

29. 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?

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

31. 80 degrees F is equal to ___ degrees C ?
189.3 liters
26 degrees
10'
Burner

32. What is the water supply fixture units value for a domestic clothes washer in an individual dwelling unit?
90 degrees to 105 degrees
4.0
adequate capacity
7/8'

33. Gas input ratings of appliances shall be used for elevations up to ____'.
10 - 15
2'
2000
20

34. Test duration shall not be less than ____ hour for each ____ ' of pipe volume or fraction thereof.
Underground
1 1/2 times working pressure
60'
1/2 hour; 500

35. A nursing home with 47 people would have a sewage flow rate of ____ gallons.
Grease Interceptors
3 - 525
above ground - within building.
5'

36. In a single dwelling unit - up to ___ bathroom groups shall be permitted where the water closets are 1.6 gallons per flush or less.
air gap
5
6
D2729

37. A 50 gallon water heater when filled - would hold ____ liters of water?
60 lbs
189.3 liters
2'
25

38. Potable water supply systems using wells - shall have well casing - curbs and pitless adapters terminating not less than ___ inches above the finished ground surface.
12
8
5'
4 - 513 pounds

39. Making capillary joints by soldering of copper and copper alloy tube and fittings shall comply with A). ASTM B828-92 B). NFPA 99C C). ANSI 1018 or D).ASSE 5010?
A). ASTM B828-92
3 - 525
32'
75'

40. What is the maximum drainage fixture units permitted on a 6 inch sewer at 2% (1/4 inch) grade?
pitcher - chain bucket
840
3 inches
25

41. 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
0.2
Manometer
#13

42. Testing the plumbing system is basic principle # ____.
60 lbs
4'
2-1/4 inch
13

43. In food handling establishments - all openings through floors shall be sleeved and projecting not less than ___ above the top of finished floor.
3/4 inches
permanently identified by labels
3 feet outside a building wall
Z 124.4

44. Water may not be discharged onto the drainage system if temperature exceeds _____ degrees F.
100
30'x 2
140 degrees
#13

45. Vacuum breakers for bed pan washers shall be not less than ____ above the floor.
6'
8
60'
5 feet

46. What's the maximum dfu's permitted on a 6' sewer at 1/4' per foot?
air gap
14 AWG
Water Service Piping
840

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

48. Where a vent terminal is within 10 feet horizontally of a ventilation opening it shall be at least ____ feet above the top of the opening.
1/4'
2 feet
vacuum
18'

49. Oil interceptors - waste oil tanks - oil pump-out connection - backwater valves - and atmospheric vent piping shall be?
permanently identified by labels
4 inches
No.
3'

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