Level I Chapter 1 Worksheet

Transcription

1 Chapter 1 Worksheet 1. For applicability requirements of the Plumbing Code, refer to: a. Building Code b. Administration and Enforcement Code c. Plumbing Code d. Residential Code 2. The provisions of the Plumbing Code shall apply to: a. installations b. alterations and repairs c. replacements d. all of the above 3. The provisions of the Plumbing Code shall NOT apply to: a. Gas-fired water heaters b. Water heater venting systems c. Fuel gas piping d. All of the above 2012 NC Plumbing Code Level 1 Page 1 of 33 Revised: 10/2016

2 Chapter 1 Answer Key 1. C D D NC Plumbing Code Level 1 Page 2 of 33 Revised: 10/2016

3 Chapter 2 Worksheet 1. means having direct access without the need of removing any panel, door or similar covering of the item described, and without requiring the use of portable ladders, chairs, etc. a. Access To b. Direct Vent c. Durham System d. Ready Access 2. A is the drain from the trap of a fixture to the junction of that drain with any other drain pipe. a. Horizontal Branch b. Fixture Drain c. Combination Fixture d. Building Drain 3. is a vertical vent pipe installed primarily for the purpose of providing circulation of air to and from any part of the drainage system. a. Durham System b. Stack Vent c. Vent Stack d. Soil Probe 4. is a device which prevents back-siphonage of water by admitting atmospheric pressure through ports to the discharge side of the device. a. Trap b. Flushometer Value c. Interceptor d. Vacuum Breaker 2012 NC Plumbing Code Level 1 Page 3 of 33 Revised: 10/2016

4 5. is that part of the lowest piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer 10 ft. outside the building wall. a. Building Sewer b. Building Drain c. Building Stack d. Building Trap 6. is the length of a pipe along the center line of the pipe and fittings. a. Determined Length b. Developed Length c. Desired Length d. Center Length 7. is any pipe or fittings which makes an angle of more than 45 degrees with the vertical. a. Horizontal Pipe b. Vertical Pipe c. Inclined Pipe d. Offset Pipe 8. is the pipe from the water main, water meter, water supply system or other approved source of water supply, to the building or structure served. a. Water Service Pipe b. Water Distribution Pipe c. Water Supply Pipe d. Water Outlet 2012 NC Plumbing Code Level 1 Page 4 of 33 Revised: 10/2016

5 Chapter 2 Answer Key 1. D 2. B 3. C 4. D 5. B 6. B 7. A 8. A 2012 NC Plumbing Code Level 1 Page 5 of 33 Revised: 10/2016

6 Chapter 3 Worksheet 1. The joints at the roof and around vent pipes shall be made watertight by. a. Sealants b. Listed Sealant Materials c. Lead, copper, galvanized steel, aluminum, plastic, or other approved flashing materials. d. None of the above 2. Waste and soil pipes leaving a building shall have an earth cover of inches. a. 12 b. 18 c. 6 d A manhole in a flood-hazard zone (A Zone) shall be sealed unless. a. The manhole has a vent b. The manhole has an air admittance valve c. The manhole is inaccessible d. The manhole is elevated above base flood elevation 4. Temporary toilet facilities need not be on site for crews on a job site for no more than which of the following? a. 2 hours b. one day c. one week d. 2 days 5. Strainer plates on drain inlets shall be designed with openings not greater than. a. 0.5 inch b inch c inch d inch 6. A sleeve passing through a wall to protect piping shall be which of the following? 2012 NC Plumbing Code Level 1 Page 6 of 33 Revised: 10/2016

7 a. A relieving sleeve b. A metal sleeve larger than the pipe c. Two pipe diameters greater than the pipe d. A minimum of two inches larger than the pipe 7. All plastic pipe, fittings and components shall be third party certified as conforming with which of the following? a. NSF 15 b NSF 18 c. NSF 16 d. NSF All openings around pipes, tubing, wiring, conduit, etc. shall be firestopped according to which of the following? a. Building Code b. Fire Code c. Electrical Code d. Mechanical Code 9. The top of water pipes, installed below grade outside the building, shall be: a. Above the frost line b. Minimum 12 feet below finished grade c. Maximum 12 inches below finished grade d. Below the frost line or minimum of 12 inches below finished grade whichever is greater. 10. Water piping installed in an unconditioned area shall be insulated with a minimum R factor of: a b c d Trenches installed parallel to footings shall not extend below the bearing plane of the footing: a. 40 degrees b. 45 degrees c. 50 degrees d. 55 degrees 12. Exterior wall openings shall be made which of the following? a. gas tight b. rain tight c. sealed tight 2012 NC Plumbing Code Level 1 Page 7 of 33 Revised: 10/2016

8 d. water tight 13. Notches on the ends of joints shall not exceed: a. 1/4 the depth b. 1/3 the depth c. 1/2 the depth d. 3/4 the depth 14. The edge of a bored hole in a stud shall be no closer to the edge than: a. 3/8" b. 1/2" c. 5/8" d. 3/4" 15. Protective shield plates shall extend at least which of the following above the sole plate? a inches b. 1.5 inches c. 3 inches d. 2 inches 16. When backfilling above a pipe is complete, which of the following is the proper depth above the crown of the pipe? a. 6 inches b. 8 inches c. 12 inches d. 18 inches 17. When testing the water distribution system which of the following shall be used when testing plastic piping? a. air b. air or water c. air and water d. water 18. In toilet rooms used by five year olds, which of the following may be omitted? a. Toilet stall enclosures b. Toilet stall doors c. Partitions between toilets d. All of the above 2012 NC Plumbing Code Level 1 Page 8 of 33 Revised: 10/2016

9 19. One inch copper tube shall be supported vertically at intervals not exceeding: a. 4 feet b. 6 feet c. 8 feet d. 10 feet 20. CPVC 1" pipe shall be supported horizontally at intervals no more than: a. 2 feet b. 3 feet c. 4 feet d. 5 feet 21. All the piping of the plumbing system shall be tested with: a. Water b. Air c. Soap d. Water or air 22. Drainage piping when tested with water shall be subjected to which of the following? a. 5 feet head of water b. 10 feet head of water c. 15 feet head of water d. 20 feet head of water 2012 NC Plumbing Code Level 1 Page 9 of 33 Revised: 10/2016

10 Chapter 3 Answer Key 1. C D D #6 4. B A C D A D C B D A 307.2, F C 307.2,F101.3 CONVERT TO INCHES 15. D C D D EXCEPTIONS 19. D T B T D B NC Plumbing Code Level 1 Page 10 of 33 Revised: 10/2016

11 Chapter 4 Worksheet 1. When calculating occupant load for teachers and staff, fixtures provided for teachers and staff shall be determined by multiplying the number of classrooms by: a b c d Drinking fountains may be installed in which of the following rooms? a. Foyers, bathrooms or bedrooms b. Kitchens, bedrooms or offices c. Storage rooms, offices or bathrooms d. Bathrooms, closets or bedrooms 3. Toilet rooms may be omitted in a modular classroom building when facilities of sufficient capacity for the additional occupants are provided in an adjacent building and located within of horizontal travel distance from the modular classroom. a. 200 feet b. 400 feet c. 500 feet d feet 4. Each compartment of a laundry tray shall have a waste outlet not less than? a. 1 ½ b. 1 ¼ c. 2 d In a group washup, every of rim space shall be considered as a lavatory a. 18 b. 20 c. 22 d NC Plumbing Code Level 1 Page 11 of 33 Revised: 10/2016

12 6. Without using exception the pan in a school shower compartment shall turn up on sides at least inches. a. 2, 3 b. 3, 2 c. 2, 4 d. 3, 4 7. Shower receptacle waste outlets shall be not less than 2 inches in diameter and shall have a strainer. a. plastic b. copper c. galvanized d. removable 8. Water closets for public use shall be of the type. a. public b. open front c. elongated d. commercial 9. There shall be at least clearance in front of the water closet to any wall, fixture, or door. a. 15 inches b. 21 inches c. 30 inches d. 60 inches 10. What would be the minimum number of water closets required in a retail store of no more than 20 people? a. 1 b. 4 c. 2 d A restaurant has a maximum capacity of 80 people. What would be the minimum number of required water closets? a.1 water closets men and 1 water closets women b.4 water closets men and 4 water closets women c. 2 water closets men and 2 water closets women d. 2 water closets men and 3 water closets women 2012 NC Plumbing Code Level 1 Page 12 of 33 Revised: 10/2016

13 12. In a covered mall, what is the maximum travel distance to toilet facilities? a. 100 feet b. 300 feet c. 500 feet d. 200 feet 2012 NC Plumbing Code Level 1 Page 13 of 33 Revised: 10/2016

14 Chapter 4 Answer Key 1. C B A A B B D C B A (2) 11. A AND AND TABLE B NC Plumbing Code Level 1 Page 14 of 33 Revised: 10/2016

15 Chapter 5 Worksheet 1. What standard must a relief valve for an electric residential water heater comply with? a. ANSI Z21.22 b. ANSI Z c. FS W-H d. FS W-H What is the minimum size of the indirect waste pipe from the safety pan under a water heater in an attic? a. ½ inch b. ¾ inch c. 1 inch d. 1 ¼ inch 3. How close does the water cut-off need to be to the water heater? a. 6 feet b. 1 foot c. 3 feet d. 18 inches 4. Gas water heaters installed in a garage shall be installed so that all burners or ignition device are not less than inches above the floor with an exception of listed flammable vapor ignition resistant: a. 6 inches b. 12 inches c. 18 inches d. 24 inches 5. A gas water heater, with the exception of those having direct vent systems, shall not be installed in a(n). a. attic b. bathroom c. kitchen d. crawl space 2012 NC Plumbing Code Level 1 Page 15 of 33 Revised: 10/2016

16 Chapter 5 Answer Key 1. A C C C B NC Plumbing Code Level 1 Page 16 of 33 Revised: 10/2016

17 Chapter 6 Worksheet 1. What is the correct pressure to test the water distribution system? a. 10 psi for 10 minutes b. 100 psi c. 25 psi above working pressure of operation d. not less than working pressure 2. Hot water supply to any fixture unless otherwise specified by manufacture shall be on the right side. a. True b. False 3. Reclaimed and rain water pipe and outlets shall be color coded in what color? a. Yellow b. Red c. Purple d. Blue 4. What is the minimum pressure at the fixture supply outlet for a bathtub? a. 50 psi b. 20psi c. 10 psi d. 5 psi 5. If a water line is located in the same trench, on the same level as the sewer, what must the sewer line be made of? a. PVC b. ABS c. Cast Iron d. All of the Above 6. Minimum working pressure for plastic hot and cold piping material shall be 100 psi at 180 (82 c ) for which material listed below? a. Water service pipe b. Acid waste c. Water distribution pipe d. None of the above 2012 NC Plumbing Code Level 1 Page 17 of 33 Revised: 10/2016

18 Chapter 6 Answer Key 1. B 601.4, B C B TABLE BASED ON FIXTURES SERVED 5. D #2, TABLE C NC Plumbing Code Level 1 Page 18 of 33 Revised: 10/2016

19 Chapter 7 Worksheet 1. What is the minimum size of a building sewer? a. 3 inches b. 4 inches c. 2 inches d. 6 inches 2. Minimum fall shall be not less than per foot or a 2 pipe or per foot for a 4 pipe. a. 1/4 inch : 1/4 inch b. 1/4 inch : 1/8 inch c. 1/8 inch : 1/4 inch d. 1/8 inch : 1/8 inch 3. A pipe or a fitting which makes an angle of not more than 45 with the vertical is considered a. a. Vertical pipe b. Horizontal pipe c. Vertical and Horizontal pipe d. 90 angle 4. Cleanouts in 4 inch building sewer shall be located not more than apart. a. 50 ft. b. 75 ft. c. 80 ft. d. 100 ft. 5. Size of cleanouts for a 4 inch pipe or larger may be served by a cleanout. a. 4 inch b. 2 inch c. size of pipe d. 3 inch 2012 NC Plumbing Code Level 1 Page 19 of 33 Revised: 10/2016

20 6. Cleanouts for less than a 4 inch pipe shall be. a. 4 inch b. 2 inch c. size of pipe d. 3 inch 7. Man holes are required in 8 inch lines at intervals not more than. a. 100 ft. b. 200 ft. c. 300 ft. d. 400 ft. 8. For the purpose of rodding, cleanout clearance shall be for 8 inch pipe or larger and for 6 inches and smaller. a. 36 inches : 18 inches b. 12 inches : 18 inches c. 18 inches : 12 inches d. 18 inches : 18 inches 9. How many fixture units does a 3 inch trap have? a. 5 b. 3 c. 6 d Fixture units for a shower, a private water closet, and lavatory equals. a. 7 b. 8 c. 6 d Figure Fixture Units for : 3 lavatories, 4 water closets( flushometer tank) and 3 wall urinals (> 1 gal/flush). a. 27 b. 34 c. 31 d What is the minimum size Building Drain for 3 public water closets at ¼ fall? a. 3 inch b. 4 inch c. 5 inch d. 2 1/2 inch 2012 NC Plumbing Code Level 1 Page 20 of 33 Revised: 10/2016

21 13. For 3 flushometer water closets and 4 lavatories, what is the minimum size pipe at 1/4 fall? a. 4 inch b. 3 inch c. 2 inch d. 5 inch 14. What is the maximum number of fixture units that can be put on a two inch branch with ¼ /ft drop and connected to the building drain? a. 10 b. 6 c. 21 d What size horizontal fixture branch is needed to serve 3 water closets (flushometer)? a. 3 b. 4 c. 2 1/2 d For question # 16, how many fixture units? a. 13 b. 12 c. 17 d A total of 7 water closets in a 4 story building, what is the size of the pipe for the stack? a. 2 1/2 b. 3 c. 4 d Waste water from a sump or ejector when discharged into the building drainage system shall be a temperature not higher than. a. 120 F b. 130 F c. 110 F d. 140 F 2012 NC Plumbing Code Level 1 Page 21 of 33 Revised: 10/2016

22 19. What is the minimum size discharge for a grinder pump that receives discharge from water closets? a 2 b. 1 ¼ c. 1 ½ d NC Plumbing Code Level 1 Page 22 of 33 Revised: 10/2016

23 Chapter 7 Answer Key 1. B T (1)B 2. B A D A C D A A TABLE C TABLE C TABLE A TABLE 710.1(1) (C) 13. B TABLE 710.1(1) (C) 14. C TABLE & TABLE (1) 15. A TABLE 710.1(2) (G) 16. B TABLE B TABLE 710.1(2) (G) 18. D B (EXCEPTION1) 2012 NC Plumbing Code Level 1 Page 23 of 33 Revised: 10/2016

24 Chapter 9 Worksheet 1. An open vent pipe extending through a roof shall terminate at least above the roof when the roof is used for weather protection only. a. 6 b. 12 c. 2 d What is the minimum size of a main vent stack or stack vent that must be installed in all buildings containing more plumbing than just a washing machine or laundry tray? a. 1 1/2 b. 2 c. 3 d It would be acceptable to install an individual vent for a kitchen sink in the horizontal position before it rises 6 inches above the floor level rim of the sink, since there is normally a window over this sink. a. True b. False 4. The maximum distance from the trap weir to the vent fitting for a fixture with a 1 1/2 inch drain, a 1 1/2 inch trap, and a 1/4 inch fall per foot is. a. 3 6 b. 5 c. 6 d What is the minimum size individual vent for one water closet? a. 1 1/4 b. 1 1/2 c. 2 d. 2 1/2 6. A combination waste and vent system may be used for a hand sink. a. True b. False 2012 NC Plumbing Code Level 1 Page 24 of 33 Revised: 10/2016

25 7. What is the minimum diameter of a 60 foot long vent stack serving a 3 inch soil stack with 35 fixture units? a. 2 c. 3 b. 1/2 d What is the maximum length of a 3 inch stack vent serving a 4 inch waste stack with 90 fixture units? a. 100 b. 200 c. 260 d What is the standard used to govern air admittance valves? a. ANSI/ASSE 1051 b. ASTM C 1053 c. ASTM P2665 d. ANSI B According to the drawing, what size pipe is required for the section marked A? a. 1 1/4 b. 1 1/2 c. 2 d. 2 1/ NC Plumbing Code Level 1 Page 25 of 33 Revised: 10/2016

26 11. According to the drawing, what is the least distance the vents can terminate above the roof? Roof is used for weather protection only. Parapet A B Roof is used as a sun deck. Flat Roof a. A:6 B:4 b. A:5 B:6 c. A:4 B:6 d. A:6 B:7 12. You may have a total of fixture units on a 2 wet vent? a. 6 b. 4 c. 12 d On a three inch waste stack the stack vent must be. a. 2 b. 1.5 c. 3 d If an air test is performed on the vent system, it must be tested at psi for minutes. a. 10 for 10 b. 10 for 5 c. 5 for 15 d. 5 for NC Plumbing Code Level 1 Page 26 of 33 Revised: 10/2016

27 15. A horizontal branch vent shall be at least inches above the flood level rim of the highest fixture served. a. 2 b. 4 c. 6 d A 2 trap with a 2 drain, the vent must be no further than inches from the trap weir. a. 60 b. 72 c. 84 d The maximum of fixtures connected to a horizontal fixture branch drain shall be permitted to be circuit vented. a. 8 b. 12 c. 20 d Air admittance valves shall conform to standard. a. ANSI/ASSE 1051 b. ANSI/ASSE 1001 c. ANSI/ASSE 1001 d. ANSI/ASSE NC Plumbing Code Level 1 Page 27 of 33 Revised: 10/2016

28 Chapter 9 Answer Key 1. A B B C T B A A T B T A B D B C C C D A A NC Plumbing Code Level 1 Page 28 of 33 Revised: 10/2016

29 Chapter 10 Worksheet 1. What is the maximum center line distance between 3 single compartment sinks served by 1 trap? a. 24 b. 30 c. 60 d What is the maximum vertical distance from the fixture outlet to trap weir for a kitchen sink? a. 48 b. 12 c. 24 d Where food waste grinders are installed, the waste from those units shall discharge directly into the Building drainage system after passing through a solids interceptor and grease interceptor. a. True b. False 4. A fixture shall not be double trapped. a. True b. False 5. Traps shall be set level with respect to their water seals. a. True b. False 2012 NC Plumbing Code Level 1 Page 29 of 33 Revised: 10/2016

30 Chapter 10 Answer Key 1. B EXCEPTION #2 2. C B A A NC Plumbing Code Level 1 Page 30 of 33 Revised: 10/2016

31 Chapter 11 Worksheet 1. When roof drains are provided they shall have strainers extending not less than inches above the surface of the roof immediately adjacent to the drain. a. 3 b. 4 c. 5 d What is the maximum projected roof area that a 4 inch vertical leader can handle with a 4 inches per hour rainfall? a. 18,400 square feet b. 9,200 square feet c. 6,130 square feet d. 4,600 square feet 3. A roof has an area of 4,600 square feet. What is the minimum size horizontal drain required if it has 1/4 per foot fall and 4 inches per hour rainfall? a. 4 b. 5 c. 6 d Secondary roof drain systems are sized according to what rain flow rate? a. 100 year, 15 minute precipitation b. 100 year, 60 minute precipitation c. 60 year, 15 minute precipitation d. 60 year, 60 minute precipitation 5. The sump pit shall not be less than inches deep and inches in diameter unless otherwise approved. a. 18,20 b. 12, 24 c. 20, 10 d. 24, NC Plumbing Code Level 1 Page 31 of 33 Revised: 10/2016

32 6. Which of the following shall not be connected to a storm drain? a. Roof leaders b. Floor drains c. Area drains d. Roof conductors 2012 NC Plumbing Code Level 1 Page 32 of 33 Revised: 10/2016

33 Chapter 11 Answer Key 1. A D (1) 3. B A F (A) 5. D B NC Plumbing Code Level 1 Page 33 of 33 Revised: 10/2016