ER70S-X - answerWhat is the suggested filler metal classification for welding ASTM A131
Grade DH32 steel with GMAW ?
3/16 inch - answerWhen fillet welding a 3/8 inch stud in the flat position with an E7018
electrode, what diameter electrode must be used?
indefinitely, unless not engaged in the process for more than 6 months at a time -
answerHow long does welder certification last per AWS D1.1?
5/16 - answerWith a single electrode for SAW what is the maximum size single pass fillet
weld that can be deposited in the horizontal welding position when using a prequalified
procedure
once every 3 years or less, if necessary - answerHow often are visual examinations required
for inspectors under AWS D1.1?
10 hours - answerWhen stress relieving a weldment at a temperature of 150F below the
minimum specified temperature, what is the minimum holding time per inch of thickness
Need not to be welded full length or removed unless specified by the engineer - answerSteel
backing for welds in statically loaded structures
1/8 inch - answerThe maximum weld reinforcement permitted for a welding procedure
qualification on pipe or tubing having a wall thickness of 0.028 inch is:
one is for plain carbon steel electrodes and the other one is for low alloy steel electrodes -
answerWhat is the difference between the AWS A5.1 and AWS A5.5 specifications
all of the above - answerTack welds incorporated into SAW welds shall also meet the
following
A change of 5% above the mean amperage for each filler metal diameter used - answerFor
GMAW, which is not considered to be an essential variable for the procedure qualification
E6010 - answerWhich of the following SMAW electrodes is not included in the F2 group?
none, the weld shall merge smoothly with the base metal - answerHow much overlap is
allowed on a procedure qualification test coupon?
1/8 inch - answerWhat is the maximum root opening for welder qualification testing on CJP
tubular butt joints without backing?
32F - answerWhat is the lowest temperature at which welding can be done without
preheating 1/2 inch thick ASTM A36 carbon steel
AWS A5.20 - answerWhat is the classification of a suitable FCAW filler material for joining
ASTM A516 Grade 55 steel