{"id":175,"date":"2022-01-06T13:52:30","date_gmt":"2022-01-06T18:52:30","guid":{"rendered":"https:\/\/opentextbc.ca\/plumbing3e\/back-matter\/self-test-answer-keys\/"},"modified":"2022-01-06T13:52:30","modified_gmt":"2022-01-06T18:52:30","slug":"self-test-answer-keys","status":"publish","type":"back-matter","link":"https:\/\/opentextbc.ca\/plumbing3e\/back-matter\/self-test-answer-keys\/","title":{"raw":"Appendix 1: Self-Test Answer Keys","rendered":"Appendix 1: Self-Test Answer Keys"},"content":{"raw":"

Competency E1<\/h1>\n

Self-Test 1<\/h2>\n
    \n \t
  1. C<\/li>\n \t
  2. B<\/li>\n \t
  3. C<\/li>\n \t
  4. A<\/li>\n \t
  5. A<\/li>\n<\/ol>\n

    Self-Test 2<\/h2>\n
      \n \t
    1. B<\/li>\n \t
    2. C<\/li>\n \t
    3. A<\/li>\n \t
    4. B<\/li>\n \t
    5. D<\/li>\n \t
    6. D<\/li>\n<\/ol>\n

      Self-Test 3<\/h2>\n
        \n \t
      1. B<\/li>\n \t
      2. B<\/li>\n \t
      3. B<\/li>\n \t
      4. C<\/li>\n \t
      5. D<\/li>\n \t
      6. B<\/li>\n \t
      7. A<\/li>\n \t
      8. A<\/li>\n \t
      9. B<\/li>\n<\/ol>\n

        Competency E2<\/h1>\n

        Self-Test 1<\/h2>\n
          \n \t
        1. D<\/li>\n \t
        2. B<\/li>\n \t
        3. B<\/li>\n \t
        4. B<\/li>\n \t
        5. B<\/li>\n \t
        6. D<\/li>\n \t
        7. B<\/li>\n \t
        8. C<\/li>\n \t
        9. A<\/li>\n \t
        10. B<\/li>\n \t
        11. B<\/li>\n \t
        12. B<\/li>\n \t
        13. B<\/li>\n \t
        14. A<\/li>\n \t
        15. C<\/li>\n<\/ol>\n

          Competency E3<\/h1>\n

          Self-Test 1<\/h2>\n
            \n \t
          1. A<\/li>\n \t
          2. B<\/li>\n \t
          3. B<\/li>\n \t
          4. A<\/li>\n \t
          5. D<\/li>\n \t
          6. D<\/li>\n \t
          7. B<\/li>\n \t
          8. \u00a0C, D, A, B<\/li>\n \t
          9. B<\/li>\n \t
          10. A<\/li>\n \t
          11. A<\/li>\n \t
          12. A<\/li>\n \t
          13. A<\/li>\n<\/ol>\n

            Self-Test 2<\/h2>\n
              \n \t
            1. \n\n\n\n\n\n\n\n\n\n
              Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
              Piping Material<\/th>\nSteel<\/td>\n<\/tr>\n
              System Pressure<\/th>\n1.75 kPa<\/td>\n<\/tr>\n
              Table Used<\/th>\nA.2 (b) Metric<\/td>\n<\/tr>\n
              Table Allowable Pressure Drop<\/th>\n250 Pa<\/td>\n<\/tr>\n
              Longest Measured Run (LMR)<\/th>\n12 m<\/td>\n<\/tr>\n
              Code Zone (CZ)<\/th>\n12 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
              Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
              A<\/td>\n35 kW<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
              B<\/td>\n10 kW<\/td>\n[latex]\\frac{1}{2}[\/latex]\u00a0in<\/td>\n<\/tr>\n
              C<\/td>\n45 kW<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
            2. \n\n\n\n\n\n\n\n\n\n
              Type of Gas<\/th>\nPropane Gas<\/td>\n<\/tr>\n
              Piping Material<\/th>\nCopper Tube<\/td>\n<\/tr>\n
              System Pressure<\/th>\n11 in<\/td>\n<\/tr>\n
              Table Used<\/th>\nB.6 (a) Imperial<\/td>\n<\/tr>\n
              Table Allowable Pressure Drop<\/th>\n1 in<\/td>\n<\/tr>\n
              Longest Measured Run (LMR)<\/th>\n35 ft<\/td>\n<\/tr>\n
              Code Zone (CZ)<\/th>\n40 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
              Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
              A<\/td>\n100 MBH<\/td>\n[latex]\\frac{5}{8}[\/latex] in<\/td>\n<\/tr>\n
              B<\/td>\n40 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
              C<\/td>\n140 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n \t
            3. \n\n\n\n\n\n\n\n\n\n
              Type of Gas<\/th>\nNatural Gas - Low Pressure Systems<\/th>\nNatural Gas - High Pressure Systems<\/th>\n<\/tr>\n
              Piping Material<\/th>\nCopper Tube<\/td>\nCopper Tube<\/td>\n<\/tr>\n
              System Pressure<\/th>\n7 in<\/td>\n2 psig<\/td>\n<\/tr>\n
              Table Used<\/th>\nA.9 (a) Imperial<\/td>\nA.10 (a) Imperial<\/td>\n<\/tr>\n
              Table Allowable Pressure Drop<\/th>\n1 in<\/td>\n1 psig<\/td>\n<\/tr>\n
              Longest Measured Run (LMR)<\/th>\nA = 10 ft\n\nB = 20 ft\n\nC = 40 ft<\/td>\n40 ft<\/td>\n<\/tr>\n
              Code Zone (CZ)<\/th>\nA = 10 ft\n\nB = 20 ft\n\nC = 40 ft<\/td>\n40 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n
              Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
              A<\/td>\n100 MBH<\/td>\n[latex]\\frac{5}{8}[\/latex] in OD copper tube<\/td>\n<\/tr>\n
              B<\/td>\n40 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in OD copper tube<\/td>\n<\/tr>\n
              C<\/td>\n40 MBH<\/td>\n[latex]\\frac{5}{8}[\/latex] in OD copper tube<\/td>\n<\/tr>\n
              D<\/td>\n180 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in OD copper tube<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n

              Self-Test 3<\/h2>\n
                \n \t
              1. \n\n\n\n\n\n\n\n\n\n\n
                Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                Piping Material<\/th>\nWelded carbon with forged fittings<\/td>\n<\/tr>\n
                System Pressure<\/th>\n5 psig<\/td>\n<\/tr>\n
                Table Used<\/th>\nA.5 (a) Imperial<\/td>\n<\/tr>\n
                Table Allowable Pressure Drop<\/th>\n2.5 psig<\/td>\n<\/tr>\n
                Longest Measured Run (LMR)<\/th>\n160 ft<\/td>\n<\/tr>\n
                Code Zone (CZ)<\/th>\n200 ft<\/td>\n<\/tr>\n
                Proofed longest (ELR)<\/th>\n187.17 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                A<\/td>\n1,500 MBH<\/td>\n1 in<\/td>\n<\/tr>\n
                B<\/td>\n3,000 MBH<\/td>\n[latex]1 \\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                C<\/td>\n4,500 MBH<\/td>\n[latex]1\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nProof of C-A<\/span>\n[latex]\\begin{array}{ll}\\text{4 - 1\u00bd\u2033 welded 90\u00b0 @ 1.61 feet}&=6.44 \\text{ feet} \\\\ \\text{2 - 1\u00bd\u2033 welded tee @ 6.04 feet}& = 12.08 \\text{ feet} \\\\ \\text{2 - 1\u2033 welded 90\u00b0 @ 2.06 feet}&=2.10 \\text{ feet} \\\\ \\text{1 - 1\u2033 valve @ 2.62 feet}& = 2.62\\text{ feet} \\\\ \\text{1 - 1\u2033 welded tee @ 3.93 feet}& = \\underline{3.93 \\text{ feet}} \\\\ \\text{Equivalent Fitting Length} & = 27.17\\text{ feet} \\\\ \\text{Measured Length C-A} & = \\underline{160.00 \\text{ feet}} \\\\ \\text{Longest Equivalent Length of Run (ELR)} &= 187.17\\text{ feet} \\end{array}[\/latex]\n\nThe longest ELR is 187.17 feet, so the 200 ft code zone was correct.<\/li>\n \t
              2. \n\n\n\n\n\n\n\n\n\n\n
                Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                Piping Material<\/th>\nWelded carbon with forged fittings<\/td>\n<\/tr>\n
                System Pressure<\/th>\n34 kPa<\/td>\n<\/tr>\n
                Table Used<\/th>\nA.5 (b) Metric<\/td>\n<\/tr>\n
                Table Allowable Pressure Drop<\/th>\n17 kPa<\/td>\n<\/tr>\n
                Longest Measured Run (LMR)<\/th>\n30 m<\/td>\n<\/tr>\n
                Code Zone (CZ)<\/th>\n45 m<\/td>\n<\/tr>\n
                Proofed Longest (ELR)<\/th>\n41.03 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n
                Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                A<\/td>\n293 kW<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                B<\/td>\n805 kW<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                C<\/td>\n3,000 kW<\/td>\n2 in<\/td>\n<\/tr>\n
                D<\/td>\n1,170 kW<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                E<\/td>\n4,170 kW<\/td>\n2 in<\/td>\n<\/tr>\n
                F<\/td>\n4,975 kW<\/td>\n[latex]2\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                G<\/td>\n5,268 kW<\/td>\n[latex]2\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nProof of G - B<\/span>\n[latex]\\begin{array}{ll}\\text{2 - 2\u00bd\u2033 welded 90\u00b0 @ 0.75m}&=1.50 \\text{ m} \\\\ \\text{2 - 1\u00bd\u2033 welded tees @ 2.82 m}& = 5.64\\text{ m} \\\\ \\text{3 - 1\u00bc\u2033 welded 90\u00b0 @ 0.42 m}&=1.26 \\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 valve @ 1.05 m}& = 1.05\\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 welded tee @ 1.58 m}& = \\underline{1.58 \\text{ m}} \\\\ \\text{Equivalent Fitting Length} & = 11.03\\text{ m} \\\\ \\text{Measured Length C-A} & = \\underline{30.00 \\text{ m}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 41.03\\text{ m} \\end{array}[\/latex]\n\nAdditional proofs\n\nProof of G-C<\/span>\n[latex]\\begin{array}{ll}\\text{2 - 2\u00bd\u2033 welded 90\u00b0 @ 0.75m}&=1.50 \\text{ m} \\\\ \\text{1 - 2\u00bd\u2033 welded tees @ 2.82 m}& = 2.82\\text{ m} \\\\ \\text{3 - 2\u2033 welded 90\u00b0 @ 0.63 m}&=1.89\\text{ m} \\\\ \\text{1 - 2\u2033 valve @ 1.58 m}& = 1.58\\text{ m} \\\\ \\text{2 - 2\u2033 welded tees @ 2.36 m}& = \\underline{4.72 \\text{ m}} \\\\ \\text{Equivalent Fitting Length} & = 12.51\\text{ m} \\\\ \\text{Measured Length C-A} & = \\underline{22.00 \\text{ m}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 34.51\\text{ m} \\end{array}[\/latex]\n\nProof of G-D\n<\/span>[latex]\\begin{array}{ll}\\text{2 - 2\u00bd\u2033 welded 90\u00b0 @ 0.75m}&=1.50 \\text{ m} \\\\ \\text{1 - 2\u00bd\u2033 welded tees @ 2.82 m}& = 2.82\\text{ m} \\\\ \\text{3 - 1\u00bc\u2033 welded 90\u00b0 @ 0.42 m}&=1.26\\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 valve @ 1.05 m}& = 1.05\\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 welded tee @ 1.58 m}& = \\underline{1.58\\text{ m}} \\\\ \\text{Equivalent Fitting Length} & = 8.21\\text{ m} \\\\ \\text{Measured Length C-A} & = \\underline{25.00 \\text{ m}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 33.21\\text{ m} \\end{array}[\/latex]\n\nThe longest ELR is 41.03 metres, so the 45 meter code zone was correct.<\/li>\n \t
              3. 7\u2033 WC Piping System:\n\n\n\n\n\n\n\n\n\n
                Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                Piping Material<\/th>\nScrewed carbon steel pipe<\/td>\n<\/tr>\n
                System Pressure - 7\u2033 WS<\/th>\n7\u2033 WC<\/td>\n<\/tr>\n
                Table Used<\/th>\nA.2 (a) Imperial<\/td>\n<\/tr>\n
                Table Allowable Pressure Drop<\/th>\n1\u2033 WC<\/td>\n<\/tr>\n
                Longest Measured Run (LMR)<\/th>\n93 ft<\/td>\n<\/tr>\n
                Code Zone (CZ)<\/th>\n100 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                A<\/td>\n100 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                B<\/td>\n75 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                C<\/td>\n175 MBH<\/td>\n1 in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n2 PSG Piping System:\n\n\n\n\n\n\n\n\n\n
                Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                Piping Material<\/th>\nScrewed carbon steel pipe<\/td>\n<\/tr>\n
                System Pressure - 2 PSI<\/th>\n2 psig<\/td>\n<\/tr>\n
                Selected Pressure Drop - 1 PSI<\/th>\n1 psig<\/td>\n<\/tr>\n
                Table Used<\/th>\nA.3 (a) Imperial<\/td>\n<\/tr>\n
                Longest Measured Run (LMR)<\/th>\n83 ft<\/td>\n<\/tr>\n
                Code Zone (CZ)<\/th>\n90 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                1<\/td>\n300 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                2<\/td>\n150 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                3<\/td>\n450 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n5 PSG Piping System\n\n\n\n\n\n\n\n\n\n\n
                Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                Piping Material<\/th>\nScrewed carbon steel pipe<\/td>\n<\/tr>\n
                System Pressure - 5 PSI<\/th>\n5 psig<\/td>\n<\/tr>\n
                Table Used<\/th>\nA.5 (a) Imperial<\/td>\n<\/tr>\n
                Table Allowable Pressure Drop<\/th>\n2.5 psig<\/td>\n<\/tr>\n
                Longest Measured Run (LMR)<\/th>\n84 ft<\/td>\n<\/tr>\n
                Code Zone (CZ)<\/th>\n125 ft<\/td>\n<\/tr>\n
                Proofed Longest (ELR)<\/th>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
                Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                A<\/td>\n5,000 MBH<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                B<\/td>\n450 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                C<\/td>\n5,450 MBH<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                D<\/td>\n175 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                E<\/td>\n5,625 MBH<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nProof of G - B\n[latex]\\begin{array}{ll}\\text{5 - 1\u00bc\u2033 screwed 90\u00b0 @ 3.45 ft}&=17.25 \\text{ ft} \\\\ \\text{1 - 1\u00bc\u2033 valve @ 3.45 ft}& = 3.45 \\text{ ft} \\\\ \\text{2 - 1\u00bc\u2033 screwed tees @ 6.90 ft}&=\\underline{13.80 \\text{ ft}} \\\\ \\text{Equivalent Fitting Length} & = 34.50\\text{ feet} \\\\ \\text{Measured Length C-A} & = \\underline{84.00 \\text{ feet}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 118.50\\text{ feet} \\end{array}[\/latex]\n\nThe longest ELR is 118.50 feet, so the 125 ft code zone was correct.<\/li>\n<\/ol>\n

                Competency E5<\/h1>\n

                Self-Test 1<\/h2>\n
                  \n \t
                1. A<\/li>\n \t
                2. D<\/li>\n \t
                3. A<\/li>\n \t
                4. C<\/li>\n \t
                5. B<\/li>\n \t
                6. B<\/li>\n \t
                7. B<\/li>\n \t
                8. C<\/li>\n \t
                9. D<\/li>\n \t
                10. B<\/li>\n<\/ol>\n

                  Self-Test 2<\/h2>\n
                    \n \t
                  1. A<\/li>\n \t
                  2. B<\/li>\n \t
                  3. A<\/li>\n \t
                  4. B<\/li>\n \t
                  5. C<\/li>\n \t
                  6. A<\/li>\n \t
                  7. Match the names of the burner parts to their\nlettered locations\n
                      \n \t
                    • Venturi D<\/li>\n \t
                    • Mixing Tube C<\/li>\n \t
                    • Burner Ports A<\/li>\n \t
                    • Orifice E<\/li>\n \t
                    • Burner Head B<\/li>\n \t
                    • Primary air openings F<\/li>\n<\/ul>\n<\/li>\n \t
                    • B<\/li>\n \t
                    • A<\/li>\n \t
                    • C<\/li>\n \t
                    • C<\/li>\n \t
                    • A<\/li>\n \t
                    • A<\/li>\n \t
                    • B<\/li>\n \t
                    • B<\/li>\n<\/ol>\n

                      Self-Test 3<\/h2>\n
                        \n \t
                      1. C<\/li>\n \t
                      2. B<\/li>\n \t
                      3. D<\/li>\n \t
                      4. D<\/li>\n \t
                      5. B<\/li>\n \t
                      6. D<\/li>\n \t
                      7. B<\/li>\n \t
                      8. B<\/li>\n \t
                      9. C<\/li>\n \t
                      10. D<\/li>\n \t
                      11. B<\/li>\n \t
                      12. A<\/li>\n \t
                      13. C<\/li>\n \t
                      14. B<\/li>\n \t
                      15. A<\/li>\n<\/ol>\n

                        Competency E6<\/h1>\n

                        Self-Test 1<\/h2>\n
                          \n \t
                        1. D<\/li>\n \t
                        2. C<\/li>\n \t
                        3. D<\/li>\n \t
                        4. B<\/li>\n<\/ol>\n

                          Self-Test 2<\/h2>\n
                            \n \t
                          1. B<\/li>\n \t
                          2. B<\/li>\n \t
                          3. C<\/li>\n \t
                          4. B<\/li>\n \t
                          5. A<\/li>\n \t
                          6. A<\/li>\n \t
                          7. A<\/li>\n \t
                          8. C<\/li>\n<\/ol>\n

                            Self-Test 3<\/h2>\n
                              \n \t
                            1. C<\/li>\n \t
                            2. C<\/li>\n \t
                            3. B<\/li>\n \t
                            4. B<\/li>\n \t
                            5. C<\/li>\n \t
                            6. D<\/li>\n \t
                            7. B<\/li>\n \t
                            8. B<\/li>\n<\/ol>","rendered":"

                              Competency E1<\/h1>\n

                              Self-Test 1<\/h2>\n
                                \n
                              1. C<\/li>\n
                              2. B<\/li>\n
                              3. C<\/li>\n
                              4. A<\/li>\n
                              5. A<\/li>\n<\/ol>\n

                                Self-Test 2<\/h2>\n
                                  \n
                                1. B<\/li>\n
                                2. C<\/li>\n
                                3. A<\/li>\n
                                4. B<\/li>\n
                                5. D<\/li>\n
                                6. D<\/li>\n<\/ol>\n

                                  Self-Test 3<\/h2>\n
                                    \n
                                  1. B<\/li>\n
                                  2. B<\/li>\n
                                  3. B<\/li>\n
                                  4. C<\/li>\n
                                  5. D<\/li>\n
                                  6. B<\/li>\n
                                  7. A<\/li>\n
                                  8. A<\/li>\n
                                  9. B<\/li>\n<\/ol>\n

                                    Competency E2<\/h1>\n

                                    Self-Test 1<\/h2>\n
                                      \n
                                    1. D<\/li>\n
                                    2. B<\/li>\n
                                    3. B<\/li>\n
                                    4. B<\/li>\n
                                    5. B<\/li>\n
                                    6. D<\/li>\n
                                    7. B<\/li>\n
                                    8. C<\/li>\n
                                    9. A<\/li>\n
                                    10. B<\/li>\n
                                    11. B<\/li>\n
                                    12. B<\/li>\n
                                    13. B<\/li>\n
                                    14. A<\/li>\n
                                    15. C<\/li>\n<\/ol>\n

                                      Competency E3<\/h1>\n

                                      Self-Test 1<\/h2>\n
                                        \n
                                      1. A<\/li>\n
                                      2. B<\/li>\n
                                      3. B<\/li>\n
                                      4. A<\/li>\n
                                      5. D<\/li>\n
                                      6. D<\/li>\n
                                      7. B<\/li>\n
                                      8. \u00a0C, D, A, B<\/li>\n
                                      9. B<\/li>\n
                                      10. A<\/li>\n
                                      11. A<\/li>\n
                                      12. A<\/li>\n
                                      13. A<\/li>\n<\/ol>\n

                                        Self-Test 2<\/h2>\n
                                          \n
                                        1. \n\n\n\n\n\n\n\n\n\n
                                          Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                                          Piping Material<\/th>\nSteel<\/td>\n<\/tr>\n
                                          System Pressure<\/th>\n1.75 kPa<\/td>\n<\/tr>\n
                                          Table Used<\/th>\nA.2 (b) Metric<\/td>\n<\/tr>\n
                                          Table Allowable Pressure Drop<\/th>\n250 Pa<\/td>\n<\/tr>\n
                                          Longest Measured Run (LMR)<\/th>\n12 m<\/td>\n<\/tr>\n
                                          Code Zone (CZ)<\/th>\n12 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                                          Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                          A<\/td>\n35 kW<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                                          B<\/td>\n10 kW<\/td>\n[latex]\\frac{1}{2}[\/latex]\u00a0in<\/td>\n<\/tr>\n
                                          C<\/td>\n45 kW<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                                        2. \n\n\n\n\n\n\n\n\n\n
                                          Type of Gas<\/th>\nPropane Gas<\/td>\n<\/tr>\n
                                          Piping Material<\/th>\nCopper Tube<\/td>\n<\/tr>\n
                                          System Pressure<\/th>\n11 in<\/td>\n<\/tr>\n
                                          Table Used<\/th>\nB.6 (a) Imperial<\/td>\n<\/tr>\n
                                          Table Allowable Pressure Drop<\/th>\n1 in<\/td>\n<\/tr>\n
                                          Longest Measured Run (LMR)<\/th>\n35 ft<\/td>\n<\/tr>\n
                                          Code Zone (CZ)<\/th>\n40 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                                          Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                          A<\/td>\n100 MBH<\/td>\n[latex]\\frac{5}{8}[\/latex] in<\/td>\n<\/tr>\n
                                          B<\/td>\n40 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                                          C<\/td>\n140 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n
                                        3. \n\n\n\n\n\n\n\n\n\n
                                          Type of Gas<\/th>\nNatural Gas – Low Pressure Systems<\/th>\nNatural Gas – High Pressure Systems<\/th>\n<\/tr>\n
                                          Piping Material<\/th>\nCopper Tube<\/td>\nCopper Tube<\/td>\n<\/tr>\n
                                          System Pressure<\/th>\n7 in<\/td>\n2 psig<\/td>\n<\/tr>\n
                                          Table Used<\/th>\nA.9 (a) Imperial<\/td>\nA.10 (a) Imperial<\/td>\n<\/tr>\n
                                          Table Allowable Pressure Drop<\/th>\n1 in<\/td>\n1 psig<\/td>\n<\/tr>\n
                                          Longest Measured Run (LMR)<\/th>\nA = 10 ft<\/p>\n

                                          B = 20 ft<\/p>\n

                                          C = 40 ft<\/td>\n

                                          		40 ft<\/td>\n<\/tr>\n
                                          Code Zone (CZ)<\/th>\nA = 10 ft<\/p>\n

                                          B = 20 ft<\/p>\n

                                          C = 40 ft<\/td>\n

                                          		40 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n
                                          Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                          A<\/td>\n100 MBH<\/td>\n[latex]\\frac{5}{8}[\/latex] in OD copper tube<\/td>\n<\/tr>\n
                                          B<\/td>\n40 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in OD copper tube<\/td>\n<\/tr>\n
                                          C<\/td>\n40 MBH<\/td>\n[latex]\\frac{5}{8}[\/latex] in OD copper tube<\/td>\n<\/tr>\n
                                          D<\/td>\n180 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in OD copper tube<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n

                                          Self-Test 3<\/h2>\n
                                            \n
                                          1. \n\n\n\n\n\n\n\n\n\n\n
                                            Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                                            Piping Material<\/th>\nWelded carbon with forged fittings<\/td>\n<\/tr>\n
                                            System Pressure<\/th>\n5 psig<\/td>\n<\/tr>\n
                                            Table Used<\/th>\nA.5 (a) Imperial<\/td>\n<\/tr>\n
                                            Table Allowable Pressure Drop<\/th>\n2.5 psig<\/td>\n<\/tr>\n
                                            Longest Measured Run (LMR)<\/th>\n160 ft<\/td>\n<\/tr>\n
                                            Code Zone (CZ)<\/th>\n200 ft<\/td>\n<\/tr>\n
                                            Proofed longest (ELR)<\/th>\n187.17 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                                            Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                            A<\/td>\n1,500 MBH<\/td>\n1 in<\/td>\n<\/tr>\n
                                            B<\/td>\n3,000 MBH<\/td>\n[latex]1 \\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            C<\/td>\n4,500 MBH<\/td>\n[latex]1\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            Proof of C-A<\/span>
                                            \n[latex]\\begin{array}{ll}\\text{4 - 1\u00bd\u2033 welded 90\u00b0 @ 1.61 feet}&=6.44 \\text{ feet} \\\\ \\text{2 - 1\u00bd\u2033 welded tee @ 6.04 feet}& = 12.08 \\text{ feet} \\\\ \\text{2 - 1\u2033 welded 90\u00b0 @ 2.06 feet}&=2.10 \\text{ feet} \\\\ \\text{1 - 1\u2033 valve @ 2.62 feet}& = 2.62\\text{ feet} \\\\ \\text{1 - 1\u2033 welded tee @ 3.93 feet}& = \\underline{3.93 \\text{ feet}} \\\\ \\text{Equivalent Fitting Length} & = 27.17\\text{ feet} \\\\ \\text{Measured Length C-A} & = \\underline{160.00 \\text{ feet}} \\\\ \\text{Longest Equivalent Length of Run (ELR)} &= 187.17\\text{ feet} \\end{array}[\/latex]<\/p>\n

                                            The longest ELR is 187.17 feet, so the 200 ft code zone was correct.<\/li>\n

                                          2. \n\n\n\n\n\n\n\n\n\n\n
                                            Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                                            Piping Material<\/th>\nWelded carbon with forged fittings<\/td>\n<\/tr>\n
                                            System Pressure<\/th>\n34 kPa<\/td>\n<\/tr>\n
                                            Table Used<\/th>\nA.5 (b) Metric<\/td>\n<\/tr>\n
                                            Table Allowable Pressure Drop<\/th>\n17 kPa<\/td>\n<\/tr>\n
                                            Longest Measured Run (LMR)<\/th>\n30 m<\/td>\n<\/tr>\n
                                            Code Zone (CZ)<\/th>\n45 m<\/td>\n<\/tr>\n
                                            Proofed Longest (ELR)<\/th>\n41.03 m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n
                                            Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                            A<\/td>\n293 kW<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            B<\/td>\n805 kW<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            C<\/td>\n3,000 kW<\/td>\n2 in<\/td>\n<\/tr>\n
                                            D<\/td>\n1,170 kW<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            E<\/td>\n4,170 kW<\/td>\n2 in<\/td>\n<\/tr>\n
                                            F<\/td>\n4,975 kW<\/td>\n[latex]2\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                                            G<\/td>\n5,268 kW<\/td>\n[latex]2\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            Proof of G – B<\/span>
                                            \n[latex]\\begin{array}{ll}\\text{2 - 2\u00bd\u2033 welded 90\u00b0 @ 0.75m}&=1.50 \\text{ m} \\\\ \\text{2 - 1\u00bd\u2033 welded tees @ 2.82 m}& = 5.64\\text{ m} \\\\ \\text{3 - 1\u00bc\u2033 welded 90\u00b0 @ 0.42 m}&=1.26 \\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 valve @ 1.05 m}& = 1.05\\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 welded tee @ 1.58 m}& = \\underline{1.58 \\text{ m}} \\\\ \\text{Equivalent Fitting Length} & = 11.03\\text{ m} \\\\ \\text{Measured Length C-A} & = \\underline{30.00 \\text{ m}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 41.03\\text{ m} \\end{array}[\/latex]<\/p>\n

                                            Additional proofs<\/p>\n

                                            Proof of G-C<\/span>
                                            \n[latex]\\begin{array}{ll}\\text{2 - 2\u00bd\u2033 welded 90\u00b0 @ 0.75m}&=1.50 \\text{ m} \\\\ \\text{1 - 2\u00bd\u2033 welded tees @ 2.82 m}& = 2.82\\text{ m} \\\\ \\text{3 - 2\u2033 welded 90\u00b0 @ 0.63 m}&=1.89\\text{ m} \\\\ \\text{1 - 2\u2033 valve @ 1.58 m}& = 1.58\\text{ m} \\\\ \\text{2 - 2\u2033 welded tees @ 2.36 m}& = \\underline{4.72 \\text{ m}} \\\\ \\text{Equivalent Fitting Length} & = 12.51\\text{ m} \\\\ \\text{Measured Length C-A} & = \\underline{22.00 \\text{ m}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 34.51\\text{ m} \\end{array}[\/latex]<\/p>\n

                                            Proof of G-D
                                            \n<\/span>[latex]\\begin{array}{ll}\\text{2 - 2\u00bd\u2033 welded 90\u00b0 @ 0.75m}&=1.50 \\text{ m} \\\\ \\text{1 - 2\u00bd\u2033 welded tees @ 2.82 m}& = 2.82\\text{ m} \\\\ \\text{3 - 1\u00bc\u2033 welded 90\u00b0 @ 0.42 m}&=1.26\\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 valve @ 1.05 m}& = 1.05\\text{ m} \\\\ \\text{1 - 1\u00bc\u2033 welded tee @ 1.58 m}& = \\underline{1.58\\text{ m}} \\\\ \\text{Equivalent Fitting Length} & = 8.21\\text{ m} \\\\ \\text{Measured Length C-A} & = \\underline{25.00 \\text{ m}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 33.21\\text{ m} \\end{array}[\/latex]<\/p>\n

                                            The longest ELR is 41.03 metres, so the 45 meter code zone was correct.<\/li>\n

                                          3. 7\u2033 WC Piping System:
                                            \n\n\n\n\n\n\n\n\n\n
                                            Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                                            Piping Material<\/th>\nScrewed carbon steel pipe<\/td>\n<\/tr>\n
                                            System Pressure – 7\u2033 WS<\/th>\n7\u2033 WC<\/td>\n<\/tr>\n
                                            Table Used<\/th>\nA.2 (a) Imperial<\/td>\n<\/tr>\n
                                            Table Allowable Pressure Drop<\/th>\n1\u2033 WC<\/td>\n<\/tr>\n
                                            Longest Measured Run (LMR)<\/th>\n93 ft<\/td>\n<\/tr>\n
                                            Code Zone (CZ)<\/th>\n100 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                                            Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                            A<\/td>\n100 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            B<\/td>\n75 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            C<\/td>\n175 MBH<\/td>\n1 in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            2 PSG Piping System:<\/p>\n\n\n\n\n\n\n\n\n\n
                                            Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                                            Piping Material<\/th>\nScrewed carbon steel pipe<\/td>\n<\/tr>\n
                                            System Pressure – 2 PSI<\/th>\n2 psig<\/td>\n<\/tr>\n
                                            Selected Pressure Drop – 1 PSI<\/th>\n1 psig<\/td>\n<\/tr>\n
                                            Table Used<\/th>\nA.3 (a) Imperial<\/td>\n<\/tr>\n
                                            Longest Measured Run (LMR)<\/th>\n83 ft<\/td>\n<\/tr>\n
                                            Code Zone (CZ)<\/th>\n90 ft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
                                            Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                            1<\/td>\n300 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                                            2<\/td>\n150 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                                            3<\/td>\n450 MBH<\/td>\n[latex]\\frac{3}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            5 PSG Piping System<\/p>\n\n\n\n\n\n\n\n\n\n\n
                                            Type of Gas<\/th>\nNatural Gas<\/td>\n<\/tr>\n
                                            Piping Material<\/th>\nScrewed carbon steel pipe<\/td>\n<\/tr>\n
                                            System Pressure – 5 PSI<\/th>\n5 psig<\/td>\n<\/tr>\n
                                            Table Used<\/th>\nA.5 (a) Imperial<\/td>\n<\/tr>\n
                                            Table Allowable Pressure Drop<\/th>\n2.5 psig<\/td>\n<\/tr>\n
                                            Longest Measured Run (LMR)<\/th>\n84 ft<\/td>\n<\/tr>\n
                                            Code Zone (CZ)<\/th>\n125 ft<\/td>\n<\/tr>\n
                                            Proofed Longest (ELR)<\/th>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
                                            Pipe Letter<\/th>\nPipe Load<\/th>\nPipe Size<\/th>\n<\/tr>\n
                                            A<\/td>\n5,000 MBH<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            B<\/td>\n450 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                                            C<\/td>\n5,450 MBH<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n
                                            D<\/td>\n175 MBH<\/td>\n[latex]\\frac{1}{2}[\/latex] in<\/td>\n<\/tr>\n
                                            E<\/td>\n5,625 MBH<\/td>\n[latex]1\\frac{1}{4}[\/latex] in<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            Proof of G – B
                                            \n[latex]\\begin{array}{ll}\\text{5 - 1\u00bc\u2033 screwed 90\u00b0 @ 3.45 ft}&=17.25 \\text{ ft} \\\\ \\text{1 - 1\u00bc\u2033 valve @ 3.45 ft}& = 3.45 \\text{ ft} \\\\ \\text{2 - 1\u00bc\u2033 screwed tees @ 6.90 ft}&=\\underline{13.80 \\text{ ft}} \\\\ \\text{Equivalent Fitting Length} & = 34.50\\text{ feet} \\\\ \\text{Measured Length C-A} & = \\underline{84.00 \\text{ feet}} \\\\ \\text{Equivalent Length of Run (ELR)} &= 118.50\\text{ feet} \\end{array}[\/latex]<\/p>\n

                                            The longest ELR is 118.50 feet, so the 125 ft code zone was correct.<\/li>\n<\/ol>\n

                                            Competency E5<\/h1>\n

                                            Self-Test 1<\/h2>\n
                                              \n
                                            1. A<\/li>\n
                                            2. D<\/li>\n
                                            3. A<\/li>\n
                                            4. C<\/li>\n
                                            5. B<\/li>\n
                                            6. B<\/li>\n
                                            7. B<\/li>\n
                                            8. C<\/li>\n
                                            9. D<\/li>\n
                                            10. B<\/li>\n<\/ol>\n

                                              Self-Test 2<\/h2>\n
                                                \n
                                              1. A<\/li>\n
                                              2. B<\/li>\n
                                              3. A<\/li>\n
                                              4. B<\/li>\n
                                              5. C<\/li>\n
                                              6. A<\/li>\n
                                              7. Match the names of the burner parts to their
                                                \nlettered locations<\/p>\n
                                                  \n
                                                • Venturi D<\/li>\n
                                                • Mixing Tube C<\/li>\n
                                                • Burner Ports A<\/li>\n
                                                • Orifice E<\/li>\n
                                                • Burner Head B<\/li>\n
                                                • Primary air openings F<\/li>\n<\/ul>\n<\/li>\n
                                                • B<\/li>\n
                                                • A<\/li>\n
                                                • C<\/li>\n
                                                • C<\/li>\n
                                                • A<\/li>\n
                                                • A<\/li>\n
                                                • B<\/li>\n
                                                • B<\/li>\n<\/ol>\n

                                                  Self-Test 3<\/h2>\n
                                                    \n
                                                  1. C<\/li>\n
                                                  2. B<\/li>\n
                                                  3. D<\/li>\n
                                                  4. D<\/li>\n
                                                  5. B<\/li>\n
                                                  6. D<\/li>\n
                                                  7. B<\/li>\n
                                                  8. B<\/li>\n
                                                  9. C<\/li>\n
                                                  10. D<\/li>\n
                                                  11. B<\/li>\n
                                                  12. A<\/li>\n
                                                  13. C<\/li>\n
                                                  14. B<\/li>\n
                                                  15. A<\/li>\n<\/ol>\n

                                                    Competency E6<\/h1>\n

                                                    Self-Test 1<\/h2>\n
                                                      \n
                                                    1. D<\/li>\n
                                                    2. C<\/li>\n
                                                    3. D<\/li>\n
                                                    4. B<\/li>\n<\/ol>\n

                                                      Self-Test 2<\/h2>\n
                                                        \n
                                                      1. B<\/li>\n
                                                      2. B<\/li>\n
                                                      3. C<\/li>\n
                                                      4. B<\/li>\n
                                                      5. A<\/li>\n
                                                      6. A<\/li>\n
                                                      7. A<\/li>\n
                                                      8. C<\/li>\n<\/ol>\n

                                                        Self-Test 3<\/h2>\n
                                                          \n
                                                        1. C<\/li>\n
                                                        2. C<\/li>\n
                                                        3. B<\/li>\n
                                                        4. B<\/li>\n
                                                        5. C<\/li>\n
                                                        6. D<\/li>\n
                                                        7. B<\/li>\n
                                                        8. B<\/li>\n<\/ol>\n","protected":false},"author":123,"menu_order":1,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"back-matter-type":[29],"contributor":[],"license":[],"class_list":["post-175","back-matter","type-back-matter","status-publish","hentry","back-matter-type-appendix"],"_links":{"self":[{"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/pressbooks\/v2\/back-matter\/175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/pressbooks\/v2\/back-matter"}],"about":[{"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/wp\/v2\/types\/back-matter"}],"author":[{"embeddable":true,"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/wp\/v2\/users\/123"}],"version-history":[{"count":0,"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/pressbooks\/v2\/back-matter\/175\/revisions"}],"metadata":[{"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/pressbooks\/v2\/back-matter\/175\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/wp\/v2\/media?parent=175"}],"wp:term":[{"taxonomy":"back-matter-type","embeddable":true,"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/pressbooks\/v2\/back-matter-type?post=175"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/wp\/v2\/contributor?post=175"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/opentextbc.ca\/plumbing3e\/wp-json\/wp\/v2\/license?post=175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}