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Welder Inspector - Level 1 > WFIC-301 — Weld Faults Inspection and Causes > Flashcards

WFIC-301 — Weld Faults Inspection and Causes Flashcards

1
Q

Which type of crack can be found in both fillet and groove welds, and is caused by thermal stresses in the HAZ? (Multiple choice)
Question 1 options:

A) A HICC.

B) A toe crack.

C) An underbead crack.

D) A solidification crack.

A

B) A toe crack.

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2
Q

When is it common for a cold crack to occur? (Multiple choice)
Question 2 options:

A) Just as the weld metal reaches the lower transformation temperature.

B) At some point after the weld area has cooled to below 150 °C.

C) Immediately after the weld area has cooled to below 100 °C.

D) At some point after the weld area has cooled to below 250 °C.

A

B) At some point after the weld area has cooled to below 150 °C.

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3
Q

CSA W59.2 allows for welding over top of a crater with defects when additional welding is required. (True/False).

A

False

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4
Q

What would be the main concern in a sharp transition of joint misalignment with a single V-groove weld joint? (Multiple choice)
Question 4 options:

A) Slag inclusions.

B) Incomplete side wall fusion.

C) Irregular bead profile.

D) Stress concentrations.

A

D) Stress concentrations.

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5
Q

Surface contaminants such as oil, paint, rust, and mill scale can cause overlap. (True/False)

A

True

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6
Q

Weld spatter can cause inter-pass weld defects if not removed. (True/False)

A

True

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7
Q

Which type of crack can be either a hot or cold crack traveling in a longitudinal direction? (Multiple choice)
Question 7 options:

A) A solidification crack.

B) A root crack.

C) A toe crack.

D) An underbead crack.

A

B) A root crack.

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8
Q

Cluster porosity is defined as: (Multiple choice)
Question 8 options:

A) porosity oriented in a relatively straight line.

B) porosity having a length greater than its width that lies approximately parallel to the weld axis.

C) a localized array of porosity having a random geometric distribution.

A

C) a localized array of porosity having a random geometric distribution.

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9
Q

An underbead crack is known to be a type of cold crack. (True/False)

A

True

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10
Q

What weld joint type can incomplete joint penetration occur in? (Multiple choice)
Question 10 options:

A) A groove weld joint.

B) A fillet weld joint.

C) Both groove and fillet weld joint types.

D) T-joint, corner joint and lap joint configurations.

A

A) A groove weld joint.

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11
Q

Which welding process may cause metallic inclusions to appear in white on a radiographic film? (Multiple choice)
Question 11 options:

A) SMAW and SAW

B) GMAW-P and GMAW-SP

C) GTAW and PAW

D) FCAW and MCAW

A

C) GTAW and PAW

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12
Q

A defect is considered to be: (Multiple choice)
Question 12 options:

A) a rejected discontinuity prior to evaluation to a code standard or specification.

B) an evaluated discontinuity determined as rejectable based on a code, standard or specification.

C) an evaluation of a poor quality weldment based on an opinion of the inspector’s input.

D) any disruption in the normal physical or compositional features of a part.

A

B) an evaluated discontinuity determined as rejectable based on a code, standard or specification.

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13
Q

Underbead cracks are usually located: (Multiple choice)
Question 13 options:

A) Below the base metal’s surface.

B) Within the root of a weld.

C) Within the inter-passes of a groove weld.

D) In between layered passes of a fillet weld.

A

A) Below the base metal’s surface.

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14
Q

Delamination is: (Multiple choice)
Question 14 options:

A) The separation of a plate material under stress, typically at plate edges.

B) Linear indications discovered while under shear stresses.

C) A discontinuity commonly found with radiography testing.

D) A tear in the surface of a material prior to welding.

A

A) The separation of a plate material under stress, typically at plate edges.

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15
Q

Cracks are often identified by their direction of travel. (True/False)

A

True

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16
Q

Which nondestructive process is best suited to discover incomplete fusion? (Multiple choice)
Question 16 options:

A) A guided bend test.

B) A magnetic particle inspection.

C) A liquid penetrant inspection.

D) An ultrasonic inspection.

A

D) An ultrasonic inspection.

17
Q

Tungsten inclusions may be caused by: (Multiple choice)
Question 17 options:

A) Filler wire feed speed too slow.

B) Filler wire feed speed too fast.

C) Incorrect shielding gas.

D) Dipping the electrode into the weld puddle.

A

D) Dipping the electrode into the weld puddle.

18
Q

A discontinuity can be defined as: (Multiple choice)
Question 18 options:

A) an observed interruption in the weld or base material considered as defective.

B) an observable interruption in the weld or base material.

C) a disruption in the normal chemical or compositional features of a part.

D) an issue considered as noncompliant to codes and standards.

A

B) an observable interruption in the weld or base material.

19
Q

Undercut is defined as: (Multiple choice)
Question 19 options:

A) a notched groove in either the base metal or weld zone of a material created to relieve inherent stress.

B) an unfilled notch-like groove melted into the base metal adjacent to the weld toe or weld root.

C) a linear-like indication in the base metal transverse to the weld toe or weld root.

D) a weld bead showing a lack of penetration into the base metal’s surface.

A

B) an unfilled notch-like groove melted into the base metal adjacent to the weld toe or weld root.

20
Q

Aligned porosity is defined as: (Multiple choice)
Question 20 options:

A) porosity aligned in cluster formations.

B) porosity which can behave like a crack.

C) porosity oriented in a relatively scattered pattern.

D) porosity lengths perpendicular to the weld face.

A

B) porosity which can behave like a crack.

21
Q

Which code is referred to for the qualification of welding procedures and welding personnel? (Multiple choice)
Question 21 options:

A) ASME B31.1

B) ASME Section IX

C) CSA W59

D) CSA W47.1

A

B) ASME Section IX

22
Q

According to AWS D1.1, what percentage of a fillet weld’s length may be undersized? (Multiple choice)
Question 22 options:

A) 10%

B) 12%

C) 15%

D) The entire length within the tolerance

A

A) 10%

23
Q

ASME B31.3 Table 341.3.2 provides acceptance criteria for radiographic examination only. (True/False)

A

False

24
Q

According to CSA W59, what formula is used to calculate the allowable convexity of a fillet weld? (Multiple choice)
Question 24 options:

A) 0.007 times the actual face width of the weld.

B) 0.007 times the actual face width of the weld plus 1.6 mm.

C) 0.07 times the actual face width of the weld.

D) 0.07 times the actual face width of the weld plus 1.6 mm.

A

D) 0.07 times the actual face width of the weld plus 1.6 mm.

25
Q

According to CSA W47.1, how much undercut is allowed when visually inspecting a welded test assembly? (Multiple choice)
Question 25 options:

A) 1 mm

B) 1.6 mm

C) 2 mm

D) No amount of undercut is allowed.

A

A) 1 mm

26
Q

Which task is to be a consideration for an inspector to complete prior to the start of welding? (Multiple choice)
Question 26 options:

A) A welding procedure review.

B) Verifying compliance to procedural variables.

C) Verifying overall dimensional accuracy.

D) Ensuring the quality of the tack welds.

A

A) A welding procedure review.

27
Q

According to CSA W59, what is the maximum size of a single porosity pore allowed when completing a visual inspection? (Multiple choice)
Question 27 options:

A) 2.5 mm.

B) 3 mm.

C) 3.2 mm.

D) No porosity is allowed.

A

A) 2.5 mm.

27
Q

According to CSA W59, what is the maximum accumulated diameter sum of porosity allowed within a 300 mm weld zone when completing a visual inspection? (Multiple choice)
Question 28 options:

A) 10 mm

B) 15 mm

C) 20 mm

D) 25 mm

A

C) 20 mm

28
Q

According to ASME, which code addresses fabrication and construction for power piping? (Multiple choice)
Question 29 options:

A) ASME B31.1

A) ASME B31.3

C) ASME B31.5

D) ASME B31.9

A

A) ASME B31.1

29
Q

The terms code and standard can be used interchangeably. (True/False)

A

True

Welder Inspector - Level 1 (5 decks)

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