Weld Inspection & Evaluation Flashcards
7 cards from real NDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Weld Inspection & Evaluation flashcards as text
What is the correct sequence for measuring a fillet weld using a fillet weld gauge?
Answer: Place the gauge against the toe and read the leg size directly
A fillet weld gauge is placed with its flat edge against the base metal and the perpendicular edge against the weld face, allowing direct reading of the leg size at the point of contact.
Which weld joint condition is described as incomplete joint penetration (IJP)?
Answer: Failure of the weld to extend through the full thickness of the joint
Incomplete joint penetration occurs when the weld metal does not extend through the full depth of the groove joint, leaving unfused base metal at the weld root.
ASME Section IX requires that a welder's qualification test record include which minimum information?
Answer: Essential variables, test results, and date of qualification
ASME Section IX mandates that welder performance qualification records document essential variables (process, position, base metal, filler metal), test results, and the date the qualification was achieved.
What is the minimum illumination level recommended by most codes for visual weld inspection?
Answer: 100 foot-candles
AWS D1.1 and most applicable codes require a minimum of 100 foot-candles (1076 lux) of illumination at the inspection surface to ensure adequate visibility of weld discontinuities.
An overlap condition in a weld is best described as:
Answer: Weld metal that extends beyond the fusion zone onto the base metal without bonding
Overlap is a surface discontinuity where weld metal flows over the base metal surface but fails to fuse with it, creating a notch-like condition that can trap moisture and initiate cracking.
When inspecting pipe welds in the 6G position, what does the '6G' designation indicate?
Answer: The pipe is fixed at a 45° incline and does not rotate
The 6G position places the pipe at a 45° fixed incline, requiring the welder to weld in all positions (flat, horizontal, vertical, and overhead) without rotating the pipe, making it the most challenging and comprehensive qualification.
Which of the following is a volumetric weld discontinuity detectable by radiographic testing but typically NOT by visual inspection alone?
Answer: Internal slag inclusion
Internal slag inclusions are subsurface discontinuities fully enclosed within the weld metal that cannot be seen by visual inspection; radiography detects them as irregular dark indications on the film.