CCC Need to Know 2019 PDF

Name: ________________________ Class: ___________________ Date: __________ ID: A CCC Need to Know 2019 Short Answer 1. What is the condition where the pressure of a piping system exceeds supply pressure? 2. Fire Dept. pumper connected at hydrant, where is P in system? 3. Wh...

Name: ________________________ Class: ___________________ Date: __________ ID: A CCC Need to Know 2019 Short Answer 1. What is the condition where the pressure of a piping system exceeds supply pressure? 2. Fire Dept. pumper connected at hydrant, where is P in system? 3. Which devices have a critical level of submergance? 4. What backflow condition can be caused by a Fire pumper truck? 1 Name: ________________________ ID: A 5. What can cause back pressure in a closed system? 6. Which of the following is not auxillary water; elevated customer tank, an onsite well, a cistern, municipal water 7. Which of the following devices create a closed loop, a check valve or a PRV? 8. How high can vacuum lift water? 9. What is the effect of high velocity flow in a pipe? 2 Name: ________________________ ID: A 10. What is common feature to test cocks and Shut off valves? 11. What can increase a hazard assesment? 12. May an AVB be used on a severe hazard? 13. Supply water protection on a Commercial / Industrial Boiler system with chemicals has a ________ for protection. 14. What loads the relief valve on a RP to the closed position? 3 Name: ________________________ ID: A 15. What causes the relief valve to open on a RPBA when SO-1&2 are closed? 16. What is the sequence of operation for a PVB in a backsiphonage condition? 17. How is the CV held closed in a PVB? 18. How is an Air Gap sized? 19. What type of backflow protection is required for backsiphonage only in a severe hazard application? 20. An AVB adds _______ to system to prevent backsiphonage from occuring?. 4 Name: ________________________ ID: A 21. Which Backflow assemblies or devices cannot be used in a closed system? 22. How is a floor drain sized for a RPBA? 23. Which TC is located between CV1 & CV2 on a RP? 24. A Barometric Loop provides protection against which backflow conditon? 25. How high must a Barometric Loop be to be effective? 5 Name: ________________________ ID: A 26. Where is a shut off valve located in relation to an AVB? 27. On an AVB air enters the _______ of the piping system in a backsiphonage condition. 28. The term “flood level rim to the lowest point of potable water” defines ___________. 29. When a PVB is in a static conditon the CV is in a __________ position. 30. Where is the Zone located on a RPBA? 6 Name: ________________________ ID: A 31. What holds the air inlet valve closed in a PVB? 32. Where are the CV’s located on a LFVB? 33. What is the required protection for an open vat system make-up water with a severe hazard rating? 34. Pressure restrictions on AVB are _______________. 35. What is the purpose of RV spring on a RPBA? 7 Name: ________________________ ID: A 36. How many TC’s on a SRPVB? 37. Which assembly is not approved for backpressure? 38. Which backflow preventer does not require testing? 39. Can a PVB be used on lawn sprinklers? 40. At what interval is an AG inspected? 8 Name: ________________________ ID: A 41. How does a HCVB function when flow stops? 42. Supply water protection on a residential Boiler system with no chemicals has a ________ for protection. 43. Why can an AVB or PVB be used on a severe hazard? 44. Identify test cock locations on a RPBA. 45. What is the Maximum Height of an assembly? 9 Name: ________________________ ID: A 46. How do you leave SO valves on a DCVA when it is winterized? 47. What should be done before initial installation of a backflow preventer? 48. Minimum clearance to RV opening is ______. 49. If you have a metered bypass on an assembly what is required? 50. What is clearance in front of a backflow assembly? 10 Name: ________________________ ID: A 51. What is the maximum walk up elevation for an assembly? 52. What is the back clearance to any backflow assembly? 53. What is the required vertical clearance for a testable assembly? 54. A heat exchanger with double wall leak path requires _________ protection. 55. Required potable water protection in a Waste Water Treatment Plant? 56. If you are refused entry to a premise the hazard rating becomes ________. 11 Name: ________________________ ID: A 57. What is the hazard rating of a Trap Primer? 58. How is a plating tank hazard rated? 59. Required protection for make up water to a plating tank? 60. What is the required protection for an pressurized tank make-up water with a severe hazard rating? 61. What is the hazard rating of a double wall heat exchanger without leak path? 12 Name: ________________________ ID: A 62. What is the disadvantage of Premise Isolation? 63. A car wash that reuses water is termed as a __________ hazard. 64. How do you define a backflow preventer on a boiler? 65. What happens to P as zone pressure increases on your gauge? 66. What happens when there is backpressure on CV1 of a RPBA? 13 Name: ________________________ ID: A 67. What is the procedure when testing a RP before putting CV2 under backpressure? 68. If the relief valve on a RPBA opens at less than 2 psi is the spring stronger or weaker than required? 69. The check valve requirements for PVB (SRPVB) are______________. 70. What is the first step on PVB testing? 71. When testing a RPBA there is no discharge yet your gauge goes to zero what is the problem? 14 Name: ________________________ ID: A 72. What is the method to test RV differential pressure on a RPBA? 73. How do you calculate the buffer on a RPBA? 15 Name: ________________________ ID: A 74. Can A RP be installed vertically? 75. What is the purpose of A DCVA bleed-off valve? 16 Name: ________________________ ID: A 76. Do I need a bleed-off valve to test a PVB or SRPVB? 77. What is the testing procedural step that is common to the RP, DCVA, PVB and SRPVB? 78. Prior to recording air inlet fully open requires ______________.(PVB) 79. What is the differential pressure between CV 1 and RVOP? 80. When testing a DCVA using a sight tube how long is the tube? 17 Name: ________________________ ID: A 81. When testing a DCVA using a sight tube how high is water in the tube for CV to pass? 82. When performing test #1 on CV 1 of a DCVA where is the vertical tube connected? 83. When performing test #2 on CV 2 of a DCVA where is the tube connected? 84. When testing a DCDA what are the requirements? 85. How does a PVB check valve work? 18 Name: ________________________ ID: A 86. If CV 2 failed while testing a RP what would the gauge read? 87. What is the purpose of flushing Test Cocks? 88. What is happening if while testing a DCVA after you open TC 3 water flows continuously? 89. A CV in a static condition is ___________. 90. When applying backpressure to CV 2 on a RPBA you notice a slight drop in P, what is the cause? 19 Name: ________________________ ID: A 91. What is the size of a differential test gauge? 20 Name: ________________________ ID: A 92. Why does low flow water go through the bypass only on Detector assemblies? 21 Name: ________________________ ID: A 22  ID: A CCC Need to Know 2019 Answer Section SHORT ANSWER 1. ANS: Backpressure See Definitions (2017 Manual) page 10 Backpressure; Page 1.3 & 1.13 PTS: 1 BNK: CCC need to know 2. ANS: Upstream from truck connection (2017 Manual) page 1.10 Figs 1.12,1.13 PTS: 1 BNK: CCC need to know 3. ANS: AVB- 6 PVB- 12 Possibly of the RPBA - 12 See (2017 Manual) page 10 Critical Level definition “level where backsiphonage protection is lost” PTS: 1 BNK: CCC need to know 4. ANS: Backsiphonage high flow at pumper connection to water main (2017 Manual) page 1.10 Figs 1.12,1.13 PTS: 1 BNK: CCC need to know 5. ANS: Thermal expansion See Introduction- Hydraulic principles (2017 Manual) Page 1.16 PTS: 1 BNK: CCC need to know 6. ANS: Municipal water See Definitions , Auxillary water & water purveyor (2017 Manual) Pages 10 & 18 PTS: 1 BNK: CCC need to know 1  ID: A 7. ANS: Check Valve In class lecture Lab demo PTS: 1 BNK: CCC need to know 8. ANS: 33.9 feet See Hydraulic principles (2017 Manual) Hydraulic principles page 1.6 PTS: 1 BNK: CCC need to know 9. ANS: Backsiphonage (multiple choice answers: pressure increase; pressure stays same; back siphonage; water hammer) See (2017 Manual) Hydraulic Principles pages 1.9 &1.10 PTS: 1 BNK: CCC need to know 10. ANS: Resilient seating See (2017 Manual) page 3.6 Description of components of a testable assembly PTS: 1 BNK: CCC need to know 11. ANS: Toxicity & Probability See (2017 Manual) page 3.2, last paragraph PTS: 1 BNK: CCC need to know 12. ANS: Yes if additional protection is installed upstream of AVB and not under continuous pressure See (2017 Manual) page 3.10 Second to last paragraph note 3. refer to B64.10 Table 2 & clause 5.4.3 Add scan of B64.10 page33,34 PTS: 1 BNK: CCC need to know 2  ID: A 13. ANS: RPBA See definition of Severe Hazards & Application charts (2017 Manual) Pages 3.2, 3.10; Table 6.1 hydronic heating systems, steam boilers PTS: 1 BNK: CCC need to know 14. ANS: Supply pressure See device description/function (2017 Manual) Page 4.8 PTS: 1 BNK: CCC need to know 15. ANS: Opening Test Cock 2 (reduces supply pressure) refer to: (2017 manual) Section 4 page 8 figure 4.10 PTS: 1 BNK: CCC need to know 16. ANS: CV closes and Air Inlet opens See (2017 manual) page 4.19 text & Figure 4.27 PTS: 1 BNK: CCC need to know 17. ANS: A spring (2017 Manual) page 4.17 Description of PVB/SRPVB & Fig. 4.22 PTS: 1 BNK: CCC need to know 18. ANS: 2 x ID of outlet, minimum of 25 mm. (1 inch) above Flood Level Rim See (2017 Manual) page 4.3 Description & Fig. 4.1 PTS: 1 BNK: CCC need to know 19. ANS: PVB See (2017 Manual) page 4.17-4.21 PTS: 1 BNK: CCC need to know 3  ID: A 20. ANS: Air See (2017 Manual) page 4.23 Functional description PTS: 1 BNK: CCC need to know 21. ANS: AVB HCVB;HCDCVB LAB Faucet See (2017 Manual) Descritions and functions pages 4.22 to 4.34 PTS: 1 BNK: CCC need to know 22. ANS: Backflow Manufacturers Relief valve flow rate See (2017 Manual) page 4.11 Installation Guidelines third bullet PTS: 1 BNK: CCC need to know 23. ANS: TC 3 See (2017 Manual) Figure 4.7 page 4.7 PTS: 1 BNK: CCC need to know 24. ANS: Backsiphonage See Backflow Preventers (2017 Manual) page 4.49 PTS: 1 BNK: CCC need to know 25. ANS: 35 feet See Backflow Preventers (2017 Manual) page 4.49 PTS: 1 BNK: CCC need to know 4  ID: A 26. ANS: Upstream See (2017 Manual) page 4.24 Installation “an AVB shall be installed downstream of the last isolation valve”. PTS: 1 BNK: CCC need to know 27. ANS: Downstream portion See (2017 Manual) page 4.23 Function , Fig 4.32 PTS: 1 BNK: CCC need to know 28. ANS: Air Gap See Air Gap (2017 Manual) Page 4.3 to 4.5 PTS: 1 BNK: CCC need to know 29. ANS: Closed See PVB Description internally loaded check valve (2017 Manual) Pages 4.17 to 4.21 PTS: 1 BNK: CCC need to know 30. ANS: Between CV1 & CV2 See (2017 Manual) RPBA Cutaway Fig. 4.7 page 4.7 PTS: 1 BNK: CCC need to know 31. ANS: Water pressure See (2017 Manual) PVB/SRPVB description page 4.17 to 4.21 PTS: 1 BNK: CCC need to know 32. ANS: Between the SO valve (Inlet) and the outlet of the device. See Description & Cutaway drawings; (2017 Manual) pages 4.32 to 4.34 PTS: 1 BNK: CCC need to know 5  ID: A 33. ANS: Air Gap to FLR of vessel (Vat or open tank) See Air Gap Description (2017 Manual) page 4.3 to 4.5 PTS: 1 BNK: CCC need to know 34. ANS: 12 hours out of 24 See Description of AVB (2017 Manual) Pages 4.22 to 4.24 PTS: 1 BNK: CCC need to know 35. ANS: To assist opening of RV See RP description Relief valve is a normally open valve held closed by supply pressure. The spring ensures the 2psig differential when the supply is within 2 psig of the zone. See Description/Function (2017 Manual) pages 4.8 & 4.9 PTS: 1 BNK: CCC need to know 36. ANS: One See description SRPVB & test procedure (2017 Manual) Pictures 4.24 & 4.25 page 4.18; pages 7.75 to 7.81 PTS: 1 BNK: CCC need to know 37. ANS: PVB / SRPVB See Applications PVB/SRPVB (2017 Manual) page 4.20 “backsiphonage only” PTS: 1 BNK: CCC need to know 38. ANS: Air Gap See description (2017 Manual) Table 1.4 page 4,1 & Page 4.3 no physical test but include in annual inspection PTS: 1 BNK: CCC need to know 6  ID: A 39. ANS: Yes if installed downstream of control valve and above all downstream system outlets See Applications PVB (2017 Manual) pages 4.17 to 4.21 & Illustration 4.28 page 4.20 PTS: 1 BNK: CCC need to know 40. ANS: Annually See description (2017 Manual) Table 1.4 page 4,1 & Page 4.3 no physical test but include in annual inspection PTS: 1 BNK: CCC need to know 41. ANS: AV opens CV closes See Description/Function HCVB (2017 Manual) pages 4.27 to 4.31 PTS: 1 BNK: CCC need to know 42. ANS: DCAP See Description (2017 Manual) Pages 4.35 to 4.39 minor Hazards only, single family dwelling; Fig. 4.56 PTS: 1 BNK: CCC need to know 43. ANS: Fixture isolation with adequate upstream protection See AVB, PVB/SRPVB applications (2017 Manual) Table 4.2 see note at end of table; page 4.20 &4.24 PTS: 1 BNK: CCC need to know 44. ANS: TC 1 Upstream SO 1 TC 2 Between SO 1 ,CV 1 upstream of relief diaphragm TC 3 Zone between CV 1, CV 2 & Relief outlet TC 4 Between CV 2 & SO 2 Reference (2017 Manual) Figure 4.7 page 4.7 PTS: 1 BNK: CCC need to know 7  ID: A 45. ANS: Five feet (1500 mm) See ( 2017 Manual) Table 5.1 page 5.2 PTS: 1 BNK: CCC need to know 46. ANS: Position handle to 45° ( 1/2 open Ball Valves) 2017 Manual page 5.11 note 4 PTS: 1 BNK: CCC need to know 47. ANS: Flush the water line See Installation guidelines (2017 Manual) General Installation Guidelines page 5.5 PTS: 1 BNK: CCC need to know 48. ANS: 12" to FLR See General Installation requirements (2017 Manual) Page 5.2 Table 5.1 PTS: 1 BNK: CCC need to know 49. ANS: Equivalent backflow protection on the bypass See B64.10-11 clause 6.14 Bypasses & parallel intallations clause 6.7_ Bypasses shall be prohibited except where an equivalent backflow preventer is installed on the bypass (2017 Manual) Page 5.7 Parallel installations PTS: 1 BNK: CCC need to know 50. ANS: 30" See clearance tables (2017 Manual) Table 5.1 page 5.2 PTS: 1 BNK: CCC need to know 51. ANS: 5 feet or 1500mm See clearance tables (2017 Manual) Table 5.1 page 5.2 PTS: 1 BNK: CCC need to know 8  ID: A 52. ANS: 3/4" or 20mm. See clearance tables (2017 Manual) Table 5.1 page 5.2 PTS: 1 BNK: CCC need to know 53. ANS: 12" or 300mm. See clearance tables (2017 Manual) Table 5.1 page 5.2 PTS: 1 BNK: CCC need to know 54. ANS: no ( see Hazard chart) (2017 Manual) pages 6.34,35 Table 6.3 PTS: 1 BNK: CCC need to know 55. ANS: RPBA + Air Gap See (2017 Manual) Applications pages 6.14 & 6.15. PTS: 1 BNK: CCC need to know 56. ANS: Severe (2017 Manual) Table 6.2 page 6.14 “....Restricted or prohibited access” PTS: 1 BNK: CCC need to know 57. ANS: Severe See Hazard Tables for Internal protection. (2017 Manual) page 6.11 Table 6.1 PTS: 1 BNK: CCC need to know 58. ANS: Severe See Hazard Classification Tables (2017 Manual) Table 6.1, page 6.10 PTS: 1 BNK: CCC need to know 9  ID: A 59. ANS: RPBA See Hazard Classification Tables (2017 Manual) Table 6.1, page 6.10 and Table 4.2 Application guide page 4.2 PTS: 1 BNK: CCC need to know 60. ANS: RPBA See Hazard tables (2017 Manual) Page 6.6 Individual Protection- Severe requires an RP for zone protection PTS: 1 BNK: CCC need to know 61. ANS: Moderate; no protection required; Severe, RP See Protection listings, Internal (2017 Manual) Table 6.4 page 6.35 PTS: 1 BNK: CCC need to know 62. ANS: Does not protect occupants of the premise See Protection methods (2017 Manual) Location of Backflow protection pages 6.2 to 6.6 PTS: 1 BNK: CCC need to know 63. ANS: Severe See hazard tables (2017 Manual) Page 6.12 Table 6.2 PTS: 1 BNK: CCC need to know 64. ANS: Fixture isolation See Hazard Charts (2017 Manual) Table 6.1 Chemical, Hydronic Heating Systems & Steam Boiler; pages 6.8 to 6.11 PTS: 1 BNK: CCC need to know 65. ANS: P decreases See test procedures for RPBA test 1 & test 2 (2017 Manual) page 7.12 & 7.14 PTS: 1 BNK: CCC need to know 10  ID: A 66. ANS: Relief valve opens ( CV2 would have to be faulty or assembly is being tested) See test procedures for RPBA test 1 & description of operation (2019 Manual) pages 4.6-4.9 Figs 4.5-4.12 & page 7.11-13 test procedure for 5 valve gauge. PTS: 1 BNK: CCC need to know 67. ANS: Open Low Side bleed to re-establish the zone. See (2017 Manual) Test procedures, page 7.15 Test 3 point1. PTS: 1 BNK: CCC need to know 68. ANS: Weaker See (2017 Manual) Testing Requirements, page 7.9 Table 7.1 and Description on pages 4.6 to 4.11. PTS: 1 BNK: CCC need to know 69. ANS: Closes in direction of flow with a 1psi differential See (2017 Manual Table 7.1 page 7.9 PTS: 1 BNK: CCC need to know 70. ANS: Remove Canopy See (2017 Manual) Test procedures page 7.52 PTS: 1 BNK: CCC need to know 71. ANS: Relief valve stuck or Plugged sensing line See (2017 Manual) RPBA Test procedure test 1 Step 8 page 7.12. PTS: 1 BNK: CCC need to know 72. ANS: Slowly decrease  pressure See Test procedures (2017 Manual) Page 7.12 steps 7& 8 PTS: 1 BNK: CCC need to know 11  ID: A 73. ANS: CV1 P - RV opening point ( 2 or more psid) 13.8 kPa See Test Procedures and Pass Criteria (2017 Manual) Table 7.1 page 7.9; Test procedure Test 3 Step 7 page 7.29 PTS: 1 BNK: CCC need to know 74. ANS: Yes if approved (manufacturer’s documentation Watts 909) PTS: 1 BNK: CCC need to know 75. ANS: SO valve 1 is leaking See Test Procedures DCVA (2017 Manual) Page 7.5 Descrition bleed valve for any time SO 1 is leaking by Pages 7.31 to 7.36 DCVA Test procedure, mentioned but not defined in sight tube method, Page 7.56 PVB testing PTS: 1 BNK: CCC need to know 76. ANS: Only if SO 1 is passing by in the closed position See PVB 5 valve test procedure & SRPVB procedure (2017 Manual) pages 7.52 to 7.57 PVB, pages 7.75 to 7.81 SRPVB PTS: 1 BNK: CCC need to know 12  ID: A 77. ANS: Attach High side hose to TC 2 See Test procedure for each Assembly (2017 Manual 5 valve procedures: RP Step 2 page 7.12; DCVA test 1,Step 3 page7.32; PVB Test 2, CV Step 2 page 7.54; SRPVB Test 1, step 3 page 7.75 ) PTS: 1 BNK: CCC need to know 78. ANS: Draining water from valve body.( completely) See PVB test 1 procedure (2017 Manual) pages 7.52 & &.53 PTS: 1 BNK: CCC need to know 79. ANS: Buffer / minimum 3 PSI See Test Standards & RPBA test procedure Test 3 (2017 Manual) Test Requirements page 7.9 & 5 valve test 3 step 4 page7.15 & 7.16 PTS: 1 BNK: CCC need to know 80. ANS: 36" ( must be able to have 28" of water above centerline of downstream TC’s ) See Sight tube test methods (2017 Manual) Pages 7.43 to 7.46 Note PVB can also be done this method pages 7.64 to 7.68 PTS: 1 BNK: CCC need to know 81. ANS: Must be hold 28" above centerline of TC 3 or 4 for 2 minutes See Sight tube test methods (2017 Manual) Pages 7.43 to 7.46 Note PVB can also be done this method pages 7.64 to 7.68 PTS: 1 BNK: CCC need to know 82. ANS: TC-3 See DCVA test methods (2017 Manual) Pages 7.43 to 7.46 Note PVB can also be done this method pages 7.64 to 7.68 PTS: 1 BNK: CCC need to know 13  ID: A 83. ANS: TC-4: See DCVA test methods (2017 Manual) Pages 7.33 to 7.434 PTS: 1 BNK: CCC need to know 84. ANS: 2 forms and record all pressure losses See DCVA Test procedure & sample test forms (2017 Manual) General requirements page 7.10; Test procedures pages 7.31 to 7.42 Forms pages C.1 to C.3 PTS: 1 BNK: CCC need to know 85. ANS: Closes in direction of flow maintaining a 1 PSI differential See Testing Criteria (2017 Manual) Table 7.1 page 7.9 PTS: 1 BNK: CCC need to know 86. ANS: Relief Valve opening point pressure See Test procedures Test 2 (2017 Manual) page 7.14 point 5 PTS: 1 BNK: CCC need to know 87. ANS: To remove any foreign material or debris See Test procedures for all testable assemblies step 1; Step 2 PVB (2017 Manual) Page 7.10 third bullet point; pages 7.12, 7.31, 7.52 PTS: 1 BNK: CCC need to know 88. ANS: SV 1 leaks See DCVA Test procedures (2017Manual) Pages 7.31 to &.42 troubleshooting PTS: 1 BNK: CCC need to know 89. ANS: Closed See descriptions and test requirements of all Backflow asseblies & devices (2017 Manual) Table 7.1 page 7.9; page 4.6, 4.12, 4.17, 4.27, 4.32, 4.35, 4.40, 4.44, 4.46, 4.48 PTS: 1 BNK: CCC need to know 14  ID: A 90. ANS: Disc Compression See Test Procedures Test 2 & 3 (2017 Manual) pages 7.14 to 7.17 PTS: 1 BNK: CCC need to know 91. ANS: 4.5" See (2017 Manual) page F.1 PTS: 1 BNK: CCC need to know 15  ID: A 92. ANS: Lower Pressure across 3/4” bypass than main assembly See Watts Illustration: P-BFP 36 x 48-3.pdf 16  ID: A PTS: 1 BNK: CCC need to know 17