Page 31 - WCS - Electrical
P. 31

WORKSHOP CALCULATION & SCIENCE  - CITS


           3                              Percentage of increase
                                          = 36%
                                          Value of increase
                                          = 611.2 N/mm2
                                          Original tensile strength

                                          = ______ N/mm2.
           4                              Copper in alloy = 27 kg
                                          Zinc in alloy = 18 kg

                                          % of Copper
                                          = _______ %


                                          % of Zinc = _______%.
           5                              Weight of alloy = 140 Kgf
                                          Weight of Sn 40%

                                          Pb = ______ Kgf
                                          Sn = ______ Kgf.
           6                              Shaded portion
                                          = ______ %.







           7                              Compression length
                                          = ______ %.






           8                              d = 360 mm
                                          a = 0.707 x d

                                          Wastage = ______ %.






           9                              Cu = 36 Kg
                                          Zn = 24 Kg
                                          Cu = ______ %





                                          Zn = ______ %
           10                             Cu = 42.3 Kg
                                          Sn = 2.7 Kg





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                                            CITS : WCS - Electrical - Exercise 3
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