SC Boiler Installation Practice Questions - South Carolina Boiler Installation Contractor Examination Exam

Incomplete penetration is a surface ripple; porosity is a crack Incomplete penetration is failure of the weld metal to reach the root; incomplete fusion is failure to fuse to a sidewall or prior bead; undercut is a groove melted into the base metal beside the toe; porosity is trapped gas Slag inclusion is the same as undercut All four conditions are acceptable if the weld is pressure-tight on a soap test