Which material is not used for making non-consumable electrodes?(a) Carbon(b) Graphite(c) Sodium(d) TungstenThis question was addressed to me by my college director while I was bunking the class.My enquiry is from Arc Welding Equipment in section Welding and Related Processes of Casting-Forming-Welding II

Which material is not used for making non-consumable electrodes?(a) Ca

1.	Which material is not used for making non-consumable electrodes?(a) Carbon(b) Graphite(c) Sodium(d) TungstenThis question was addressed to me by my college director while I was bunking the class.My enquiry is from Arc Welding Equipment in section Welding and Related Processes of Casting-Forming-Welding II
Answer» The correct option is (c) Sodium Easy EXPLANATION: Non-consumable electrodes, are those electrodes which do not get consumed as the WELDING OPERATION proceeds. These electrodes are primarily made up of materials like carbon, GRAPHITE and tungsten.

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