1. Unlike TIG welding, MIG welding – (a) Requires no flux (b) Requires no post-weld cleansing (c) Uses consumable electrodes (d) Provides complete protection from atmospheric contamination 2. In Gas Metal Arc welding, the electrode extended from the end of the contact tip to the arc is known as – …
1. The term used to indicate amount of current flowing in a circuit is called …….. (a) Volt (c) Ohm (b) Ampere (d) Farad 2. Earth clamp is used in arc welding to . (a) Hold the electrode firmly during welding (b) Connect the earthing cable to electrode (c) …