2012 UPC Chapter 6 Water Systems Part 2 RV

Transcription

1 PLEASE DO NOT BOOKMARK ANY ANYTIMECE WEBPAGES! Our system will remember the last page you viewed when logging out and back in but please DO NOT exit out when taking a test. Your place will NOT be saved. How to take this course. 1. Download and Print the test questions. 2. Login to your account with your ID and password. 3. Viewing your status page, scroll down and click on Click here to start this course. quiz on the web. 4. Begin viewing the web pages. Refer to your printed test to find the correct answers. The questions track the web pages. 5. As you find the answers, circle them on your printed copy. 6. At the end of each section, you ll enter the quiz which is the same as your printed test. Refer to your circled answers when actually answering the 7. Upon passing, you will proceed to the next section. If failed to pass, you will be moved to the beginning of that section for more review. Mobile users Many current mobile devices are compatible with AnytimeCE and will probably work. If not, use a desktop or laptop computer to complete your course. Quiz 1 1. The size of each water meter is based on demand of the system. average typical minimum total none of the answers provided 2. The pressure loss through backflow prevention device such devices shall be included in the pressure loss calculations of the system, and the water supply pipe and meter shall be adequately sized to provide for any such pressure loss. True False 3. Equivalent fixture values as show in Table are only for cold water demand. True False 1 4. The WSFU for a clothes washer in a private home is of cold water To get the total WSFU for a system, add all of the WSFU of the fixtures together. True False 6. The developed length of the system is the total length of the pipes to the most remote outlet. True False

2 7. In designing a water system, use the pressure in the water main. minimum typical average maximum Quiz 2 Size Water System for Studio Apartment 1. Design Pressure at Meter Base is. 25 psi 45 psi 44 psi 52 psi 76 psi 2. The total demand WSFU for the entire The total WSFU to the water heater demand is The longest developed length from the meter to the most remote outlet is. 32 ft. 56 ft. 85 ft. 91 ft. 102 ft. 5. The design pressure range for sizing this psi psi 60 psi 6. The Maximum allowable length column for this system using Table is The Meter and Street service is. 8. The Building Supply and branch service size is. 9. The main branch on this system has a total demand The branch supply to the water heater is. Quiz 3 Size Water System for Small House 1. Design Pressure at Meter Base is. 35 psi 45 psi 47 psi 52 psi 76 psi 2. The total demand WSFU for the entire The total WSFU to the water heater demand is

3 4. The longest developed length from the meter to the most remote outlet is. 32 ft. 57 ft. 72 ft. 91 ft. 102 ft. 5. The design pressure range for sizing this psi psi 60 psi 6. The Maximum allowable length column for this system using Table is The Meter and Street service is. 8. The Building Supply and branch service size is. 9. Branch 1 on this system has a total demand The size of the pipe to Branch 1 is. 11. Branch 2 on this system has a total demand The size of the pipe to Branch 2 is. 13. The total hot water demand WSFU for the The size of the pipe feeding the Water heater is. Quiz 4 Size Water System for Town House 1. Design Pressure at Meter Base is. 35 psi 38 psi 45 psi 47 psi 52 psi 2. The total demand WSFU for the entire The total WSFU to the water heater demand is

4 4. The longest developed length from the meter to the most remote outlet is. 32 ft. 70 ft. 80 ft. 84 ft. 96 ft. 5. The design pressure range for sizing this psi psi 60 psi 6. The Maximum allowable length column for this system using Table is The Meter and Street service is. 8. The Building Supply and branch service size is. 9. Branch 1 on this system has a total demand The size of the pipe to Branch 1 is. 11. Branch 2 on this system has a total demand The size of the pipe to Branch 2 is. 13. The total hot water demand WSFU for the The size of the pipe feeding the Water heater is. Quiz 5 Size Water System for Rambler Style Home 1. Design Pressure at Meter Base is. 35 psi 38 psi 45 psi 47 psi 52 psi 2. The total demand WSFU for the entire The total WSFU to the water heater demand is

5 4. The longest developed length from the meter to the most remote outlet is. 32 ft. 60 ft. 72 ft. 83 ft. 94 ft. 5. The design pressure range for sizing this psi psi 60 psi 6. The Maximum allowable length column for this system using Table is The Meter and Street service is. 8. The Building Supply and branch service size is. 9. Branch 1 on this system has a total demand The size of the pipe to Branch 1 is. 11. Branch 2 on this system has a total demand The size of the pipe to Branch 2 is. 13. Branch 3 on this system has a total demand The size of the pipe to Branch 3 is. 1/2 inch 15. The total hot water demand WSFU for the The size of the pipe feeding the Water heater is. Quiz 6 Size Water System for 2 Story House 1. Design Pressure at Meter Base is. 45 psi 47 psi 52 psi 65.5 psi 78 psi 5

6 2. The total demand WSFU for the entire The total WSFU to the water heater demand is The longest developed length from the meter to the most remote outlet is. 101 ft. 122 ft. 140 ft. 148 ft. 158 ft. 5. The design pressure range for sizing this psi psi 60 psi 6. The Maximum allowable length column for this system using Table is The Meter and Street service is. 8. The Building Supply and branch service size is. 9. Branch 1 on this system has a total demand The size of the pipe to Branch 1 is. 1/2 inch 11. Branch 2 on this system has a total demand The size of the pipe to Branch 2 is. 1/2 inch 13. Branch 3 on this system has a total demand The size of the pipe to Branch 3 is. 1/2 inch 15. The total hot water demand WSFU for the

7 16. The size of the pipe feeding the Water heater is. 1/2 inch Quiz 7 Flushometers Questions 1 10 refer to the above drawing 1. Branch A is sized for WSFU Branch B is sized for WSFU Branch C is sized for WSFU Branch D is sized for WSFU Branch E is sized for WSFU Branch F is sized for WSFU

8 7. Branch G is sized for WSFU Branch H is sized for WSFU Branch I is sized for WSFU Given Design minimum pressure of 65 psi, length 90, what is the minimum size for Branch I? 3/ / /2 Questions refer to the above drawing 11. Branch A is sized for WSFU Branch B is sized for WSFU

9 13. Branch C is sized for WSFU Branch D is sized for WSFU Branch E is sized for WSFU Branch F is sized for WSFU Branch G is sized for WSFU Branch H is sized for WSFU Branch I is sized for WSFU Branch J is sized for WSFU Given Design min. press. of 52 psi, length 75, what is the min. size for Branch J? 3/ / /2 Quiz 8 1. The maximum velocity of water in a coldwater copper pipe is per second. 3 feet 5 feet 8 feet 12 feet 15 feet 2. The maximum velocity of water in a hot water copper pipe is per second. 3 feet 5 feet 8 feet 12 feet 15 feet 3. The maximum velocity of water in a cold water PEX tube is per second. 3 feet 5 feet 8 feet 12 feet 15 feet 4. The maximum velocity of water in a hot water PEX tube is per second. 3 feet 5 feet 8 feet 12 feet 15 feet 5. Drinking water treatment units shall meet the requirements of the appropriate standard referenced in Table True False 9

10 6. Discharge from all drinking water treatment units shall enter the drainage system through an airgap. True False 7. The tubing to and from drinking water treatment units shall be of a size and material as recommended by the manufacturer. True False 8. The minimum size connection to a residential water softener is. 1/2 inch none of the answers provide 10

11 Step 1. Determine design pressure to building. Use minimum pressure at meter plus or minus elevation at 0.5 psi per foot difference. Min press (0.5 x Ft. above) = Min press + (0.5 x Ft. below) = Step 2. Table Determine the number of Cold / Hot Water WSFU for the system. TABLE WATER SUPPLY FIXTURE UNITS (WSFU) Fixture Type Fixtures Cold WSFU Total WSFU - Cold Hot WSFU Total WSFU Hot Bath Tub / Shower Shower Water Closet 2.5 Bath sink Laundry Laundry sink Clothes washer Kitchen Kitchen sink Dish washer 1.5* 1.5 Hose Bibb 2.5 Hose Bibb - Add. 1.0 Totals Important: Total System WSFU = Total Cold Water WSFU plus dishwasher WFSU Branch 1 Cold WSFU = = Hot WSFU = = Branch 2 Cold WSFU = = Hot WSFU = = Branch 3 Cold WSFU = = Hot WSFU = = Branch 4 Cold WSFU = = Hot WSFU = = Total System Demand: Total of Branch = 11

12 Step 3. Determine the Hot Water demand for system. This will be used in Step 8 to size the branch line to the water heater. Hot water system demand = total of hot water WSFUs from each branch. Branch 1 total of hot water WSFU = = Branch 2 total of hot water WSFU = = Branch 3 total of hot water WSFU = = Branch 4 total of hot water WSFU = = Total Hot Water Demand = Total of Branch hot WSFU = Step 4. Determine longest run of pipe to the remote outlet. (From Meter Base) Branch 1: of Cold: = of Hot: = Branch 2: of Cold: = of Hot: = Branch 3: of Cold: = of Hot: = Branch 4: of Cold: = of Hot: = Longest run to remote outlet is ft. (Branch Cold / Hot) Step 5. Determine the pressure range rows and column for the longest run. Use Table Always round up to the next vertical column of run of pipe to the remote outlet. Pressure range on Table use: (cycle one) psi psi Over 60 psi Max allowable length column use: (cycle one) Step 6. Size supply to meter and to building. Use Table Read down to column until the minimum number of fixtures that were determined in Step 2 is found. Read Minimum Size Supply to Meter and to Building from far left column of table. Use: Meter size 3/4 Building Supply size 3/4 1 11/4 Use: Meter size 1 Building Supply size 1 11/4 11/2 2 Use: Meter size 1 1/2 Building Supply size 11/4 11/2 2 Use: Meter size 2 Building Supply size 11/2 2 2 ½ 12

13 Step 7. Sizing branches. Calculate branch demand WSFU for both the cold and hot water. Longest run to remote Outlet from Step 4 and the appropriate pressure rows, read down the column to the total WSFU for that branch. The far left column will show the minimum branch size. Note that the branch size does NOT need to be larger than the building service size. Branch 1: (cold water WSFU) + (hot water WSFU) = total: size Branch 2: (cold water WSFU) + (hot water WSFU) = total: size Branch 3: (cold water WSFU) + (hot water WSFU) = total: size Branch 4: (cold water WSFU) + (hot water WSFU) = total: size Step 8. Size supply ONLY to water heater. Size the pipe to Water Heater using Total Hot Water WSFU from Step 3. Total system hot water WSFU = total: size 13

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15 Quiz 2 Studio Apartment All W. C. 1.6 Gravity feed Min. Press. at meter 48 psi Highest outlet above meter 8 ft. Drawing NOT to Scale. A B C D E F G H I 30 ft. 16 ft. 18 ft. 6 ft. 4 ft. 18 ft. 12 ft. 15 ft. 10 ft. 15

16 Quiz 3 1 Bedroom Small House All W. C. 1.6 Gravity feed Min. Press. at meter 40 psi Highest outlet above meter 10 ft. Drawing NOT to Scale A 20 ft. I 15 ft. B 10 ft. J 2 ft. C 18 ft. K 10 ft. D 15 ft. L 15 ft. E 5 ft. M 5 ft. F 3 ft. N 15 ft. G 20 ft. O 25 ft. H 12 ft. 16

17 Quiz 4 2 Bedroom Town House 1.5 Bath All W. C. 1.6 Gravity feed Min. Press. at meter 43 psi Highest outlet above meter 10 ft. Drawing NOT to Scale A 20 ft. K 8 ft. B 10 ft. L 10 ft. C 2 ft. M 8 ft. D 3 ft. N 8 ft. E 10 ft. O 10 ft. F 8 ft. P 10 ft. G 3 ft. Q 8 ft. H 18 ft. R 20 ft. I 25 ft. S 12 ft. J 5 ft. T 20 ft. 17

18 Quiz 5 Rambler House 2 Bath All W. C. 1.6 Gravity feed Min. Press. at meter 52 psi Highest outlet above meter 10 ft. Drawing NOT to Scale A 25 ft. M 10 ft. B 10 ft. N 3 ft. C 2 ft. O 10 ft. D 5 ft. P 8 ft. E 18 ft. Q 3 ft. F 5 ft. R 15 ft. G 3 ft. S 5 ft. H 25 ft. T 18 ft. I 25 ft. U 5 ft. J 5 ft. V 8 ft. K 3 ft. W 18 ft. L 15 ft. 18

19 Quiz 6 3 Bedroom House 2 Story 2.5 Bath All W. C. 1.6 Gravity feed Min. Press. at meter 78 psi Highest outlet above meter 25 ft. Drawing NOT to Scale A 50 ft. J 5 ft. S 3 ft. B 10 ft. K 3 ft. T 25 ft. C 2 ft. L 20 ft. U 5 ft. D 15 ft. M 20 ft. V 20 ft. E 25 ft. N 20 ft. W 5 ft. F 5 ft. O 3 ft. X 10 ft. G 3 ft. P 2 ft. Y 10 ft. H 15 ft. Q 15 ft. Z 20 ft. I 35 ft. R 10 ft. 19