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The weld bead in SMAW is formed by the_______ ✔Correct Answer-electrode wire core mixing
with molten base metal
Which American Welding Society ( AWS ) specification ( s ) cover the most common electrodes for
welding carbon ( mild ) steel and low - alloy , high strength steels ? ✔Correct Answer-A5.1 and A5.5
The rated tensile strength of the deposited weld metal from an E7018 electrode is ✔Correct
Answer-70,000 psi
All SMAW electrodes used for code - governed work must have the AWS classification number
printed on them as well as on the ✔Correct Answer-container in which they are shipped
Electrodes with powdered iron in their flux belong to the ✔Correct Answer-fast - fill ( F1 ) electrode
group
A SMAW electrode number that ends with an R means that it ✔Correct Answer-is moisture -
resistant
An example of a deep - penetrating SMAW electrode , such as one that would be used for poorly
prepared surfaces or butt joints , is ✔Correct Answer-E6010
Welding in vertical and overhead positions should not be attempted with SMAW electrodes larger
then 3/16 " in diameter unless the electrode is classified as ✔Correct Answer-low - hydrogen F4 )
After a sealed container of low - hydrogen SMAW electrodes is opened , the electrodes must be
stored in an appropriate oven at a minimum temperature setting of ✔Correct Answer-250 ° F
Low - hydrogen electrodes that have been exposed to liquid water should be ✔Correct Answer-
disposed of