2/26/2023 0 Comments Geologi dasar i wayan treman pdfWhen it is permissible to remove the lineup clamp before the root bead is completed,: a. the completed part of the bead shall be in approximately equal segments spaced approximately equally around the circumference of the joint. the completed part of the bead shall be removed and rewelded after removing the clamp. the completed part of the bead shall be peened before removing the clamp. the completed part of the bead shall be at least 4 inches long for all pipe sizes e. none of the aboveÄuring welder qualification, when destructively testing pipe with a diameter less than or equal to 33.4 mm: a. the entire pipe must be used for bend testing c. one full-section tensile specimen may be substituted for the root-bend and nick-break specimens. pipe of this diameter may not be destructively tested e. When pipe is welded above ground, the working clearance around the pipe at the weld should be at least: a. The exposed surfaces of each fillet-weld-break specimen shall show: a. no slag inclusions greater than 1/4 inch b. at least 3/4 inches sound metal between adjacent inclusions c. When automatic or semiautomatic welding is used, which of the following shall be removed by grinding before welding over them? a. Undercutting adjacent to the final bead on the outside of production pipe welds shall: a. not be more than 1/32 inch or 12.5% of the pipe wall thickness, whichever is smaller c. not be more than 1/8 inch or 6% of the pipe wall thickness, whichever is smaller d. always be acceptable if the inspector does not see it e. Welding inspection personnel shall be qualified by: a. American Society for Nondestructive Testing c. experience and training for the specified inspection task they performĪmerican Society of Mechanical Engineers e. Welding may be done by which of the following processes: a.
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