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. Water piping for the distribution of hot or cold water within buildings shall be of materials rated for not less than_____ psig.
draft hood
100
4'
14 AWG


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


7. On a threaded piece of 1 1/4 inch black steel gas pipe - How many threads should be cut on the pipe?
condensate
30'x 2
11
20


8. What size vent stack is needed for a 160' tall building with 6 branch intervals each having 23 drainage fixture units per branch?
26 degrees
3 inch
12'
4'


9. Metallic drip pans shall be a minimum ____ gage.
13
permanently identified by labels
24
3 feet above and 10 feet horizontally


10. 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?
24'
27 inches
draft hood
8 inch


11. A 2 inch type L copper water branch shall be supported at _____ intervals.
'Type B' gas vents
4'
10 foot
10 feet


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


13. Conductor is a storm pipe ____.
18 - 48
1 1/2; 3
Within the building
24 gauge.


14. 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
8 inch
2'
45 - 40


15. Water may not be discharged onto the drainage system if temperature exceeds _____ degrees F.
4'
115 gallons
140 degrees
Underground


16. How many gallons of water would be in a tank which was 5' in diameter - 16' tall - and 3/4 full?
10'
1 - 762 gallons
Z 124.4
permanently identified by labels


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


18. ABS plastic pipes - schedule 40 or 80 May be used in which potable water installation?
3'
Water Service Piping
3 feet outside a building wall
5'


19. 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?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


20. What is the max dfu's permitted to be discharged into a 4' soil stack on a 3 story building?
draft hood
10'
240
45 - 40


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


22. What is the approximate length of threaded portion and approximate number of threads to be cut for a 3' pipe?
4'
1 1/2; 12
10 foot
30'


23. Rated flow velocities for grinder pump ejectors shall be not less than ____.
2 feet per second
30'
2-1/4 inch
10 1/2 inches to 13 1/2 inches


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


25. What is the maximum length of a 2 inch trap arm?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


26. An air conditioning condensate pump which discharges 8 gpm would require a ____ inch horizontal drain.
3 fps
vacuum
8
3


27. 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.
2 inch
3
60'
80 psi


28. Must be installed so that a swing check valve controls the flow of rate
4'
2'
Grease Interceptors
150 psi


29. What is the maximum distance a 2 inch vent can be run off a 76 gallon per minute sump pump?
150 feet
2'
60 lbs
10'


30. What is the minimum pressure used to test gas piping with a working pressure less than 125 psi?
0.2
1 1/2 times working pressure
3 feet outside a building wall
5'


31. Clean-outs in horizontal drainage lines 4' or less shall be spaced at intervals not exceeding ____ feet.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


32. When testing a gas system - which can not be used? A). Air. B). Nitrogen. C). Oxygen. or D). B or C?
60'
C). Oxygen
5
1 1/4'


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


35. When connecting additional gas pipe - check for...
adequate capacity
10'
27 inches
90 degrees to 105 degrees


36. Waste drainage from condensers or steam traps shall be cooled below ____ before being discharged indirectly into the sanitary drainage system.
140 degrees
D2729
No.
30'x 2


37. 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____'.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


38. What's the maximum dfu's permitted on a 6' sewer at 1/4' per foot?
4.0
2'
1'
840


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


40. Sump pits shall be a minimum of ____ inches in diameter and ____ inches in depth.
pitcher - chain bucket
2 inch
15 - 18
3/4'


41. Water may not be discharged onto the drainage system if temperature exceeds _____ degrees F.
globe valve
30'
140 degrees
4'


42. 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 - 15
1 1/4'
3/4'


43. Vent pipes in trailer parks shall be located at least ____ above grade.
18'
24'
condensate
10 feet


44. Grease interceptors shall have a grease retention capacity of not less than ____ pounds for each gpm of flow.
globe valve
18'
2 lbs.
5


45. A 3' horizontal drain at a 1/4' per foot grade would have a discharge velocity of ____.
3 fps
globe valve
3 feet outside a building wall
2-1/4 inch


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


49. Used - untreated water that is flushed down toilets and urinals is called ____.
20
18
Black Water
18


50. Materials fr pvc sewer pipe & fittings installed for foundation and sub-soil drainage shall conform to ASTM ____.
45 - 40
2 lbs.
D2729
3