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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. Is not code for a gas fired appliance with input of 240 - 000 BTU/H.

2. The exit terminals of mechanical draft systems shall be not less than ____ ' above grade where located adjacent to public walkways.
20
Burner
7
1/2 hour; 500

3. Plastic pipe - tubing and fittings used to supply fuel gas shall be used ____ and ____ only.
3 inch
Outdoor - Underground.
3/4 inches
6'

4. The test medium of a gas system shall be____.
Air - Nitrogen - carbon dioxide - or an inert gas
1
2'
3

5. Vitrified clay pipe installed underground within buildings shall have____ ' minimum earth cover.

6. Cleanouts shall be installed at each change of direction - except not more than one shall be required in every ____ feet of run.
1 - 060
globe valve
40
4'

7. Flexible plastic tubing shall be supported horizontal every____ inches.
6'
32 inches
18 - 48
Z 124.4

8. The distance from the outlet of the water closet to the connection of the wet vent shall be ____ feet vertical and ___ feet horizontal.
.2%
4 inches
D2729
3 - 9

9. Torque wrenches are set to release at ____ lbs.
8 inch
1/2 hour; 500
12'
60 lbs

10. 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.
2 feet
160
2'
115 gallons

11. An air conditioning condensate pump which discharges 8 gpm would require a ____ inch horizontal drain.
2'
140 degrees
10 feet
3

12. ABS plastic pipes - schedule 40 or 80 May be used in which potable water installation?
0.2
5'
Water Service Piping
6'

13. Where sump pumps discharge at grade on unpaved surfaces - splash blocks at least ____ long shall be used.
pitcher - chain bucket
6
24 inches
5

14. Sterilzer in hospital surgical room has water waste connection must be disposed through an indirect connection to the drainage system by means of an ____.
test the appliances
30'
air gap
50 psi

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

16. 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
2 lbs.
3/4'
1

17. The test pressure on a gas system shall be no less than ____ times the proposed maximum working pressure - but not less than ____ psi.
30'
3/4'
1/4'
1 1/2; 3

18. Horizontal branch drain connections shall not be made within ____ pipe diameters from the base of the stack.
2'
3 - 525
119.47'
10

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

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

21. Grease interceptors shall have a grease retention capacity of not less than ____ pounds for each gpm of flow.
2-1/4 inch
160
24'
2 lbs.

22. 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?

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

24. Where does the building drain end and the building sewer begin?
3 feet outside a building wall
adequate capacity
10'
2'

25. Vacuum breakers for bed pan washers shall be not less than ____ above the floor.
12'
5 feet
as close to the appliance a practical
5 inch

26. 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?
32 inches
10 feet
140 degrees
2 inch

27. Water may not be discharged onto the drainage system if temperature exceeds _____ degrees F.
60'
D2729
140 degrees
100

28. Light & ventilation falls under basic principle #____.
test the appliances
.2%
10'
16

29. What shall be the depth of lead required for a 3 inch cast-iron water pipe - bell and spigot?
189.3 liters
1/2 hour; 500
2-1/4 inch
11

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

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

32. 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
10'
41'
24 inches

33. What is the minimum pressure used to test gas piping with a working pressure less than 125 psi?
12'
1 1/2 times working pressure
3 fps
5

34. What is the maximum relief valve setting for CPVC (ASTM F441) hot water distribution?
140 degrees
150 psi
4'
1/2 hour; 500

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

36. The device for final conveyance of the gas air to the combustion zone is called a ____.
3'
Burner
4 - 513 pounds
24'

37. Vent connector located and serving appliances in an attic shall be ________ vent.
Water Service Piping
13
type B or L
Within the building

38. Metered bends can only be used in gas piping system if the pressure is a maximum of ____ psi.
3/4 inches
A). ASTM B828-92
50 psi
10'

39. Combination stop and waste valves shall be prohibited where?
8 inch
100
vacuum
Underground

40. What is the minimum size floor drain required where sterilizers are located?
4'
4'
3 inches
Air - Nitrogen - carbon dioxide - or an inert gas

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

42. Vent connector located and serving appliances in an attic shall be ________ vent.
Air - Nitrogen - carbon dioxide - or an inert gas
140 degrees
6
type B or L

43. What is the minimum size vent piping permitted to be installed underground?
Z 124.4
2 lbs.
12'
1 1/2 inch

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

45. 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 ____'.

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

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

48. May be used for distribution of hot potable water
135'
40
5'
Galvanized pipe

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

50. Cleanouts shall be installed at each change of direction - except not more than one shall be required in every ____ feet of run.
40
160
3 inches
7/8'