Requirements for covered electrodes for welding stainless steels are included in: (Multiple Choice) a) CSA Standard w59. b) CSA Standard W47. c) CSA Standard W48. d) CSA Standard W55.

The correct answer is a) CSA Standard W59.<br /><br />CSA Standard W59, "Welding of Stainless Steel," provides requirements and guidelines for the welding of stainless steel, including the use of covered electrodes. This standard covers various aspects such as welding procedures, materials, and the properties of the welds. It ensures that the welding process meets the necessary quality and safety standards for stainless steel applications.