38) In DC welding, straight polarity is recommended for
Answer is:
Welding with light coated electrodes
Related ISRO Technician-B Welder Question Paper - 2017 (Set -1) with Answer Key
39) Among the following, which type of electrode deposits a large amount of weld metal per unit time
Answer is:
Iron powder electrode
Answer is:
Slightly carburising
Answer is: