AWS API 1104 Pipeline Welding Endorsement

What is the reference standard used for the AWS API 1104 Endorsement exam?

• AAWS D1.1:2020 Structural Welding Code - Steel
• BAPI 1104:2021 Welding of Pipelines and Related Facilities (22nd Edition)
• CASME Section IX Boiler and Pressure Vessel Code
• DAPI 570 Piping Inspection Code

The API 1104 Endorsement exam is administered in what format?

• AClosed-book paper exam
• BOpen-book computer-based exam at Prometric
• CHands-on practical inspection at AWS facilities
• DOral examination by AWS proctors

How many multiple-choice questions are on the API 1104 Endorsement exam and what is the time limit?

• A50 questions in 90 minutes
• B60 questions in 2 hours
• C100 questions in 3 hours
• D150 questions in 4 hours

What is the minimum passing score for the AWS API 1104 Endorsement exam?

• A60%
• B70%
• C72%
• D80%

Which prerequisite must a candidate hold to register for the AWS API 1104 Endorsement?

• AA four-year engineering degree only
• BA current CWI or SCWI certification in good standing
• CASNT Level III certification
• DFive years of pipeline welding experience without certification

Which API 1104 section covers Qualification of Welding Procedures for Welds Containing Filler-Metal Additives?

• ASection 4
• BSection 5
• CSection 6
• DSection 9

Which API 1104 section covers Qualification of Welders?

• ASection 5
• BSection 6
• CSection 7
• DSection 9

Section 9 of API 1104 establishes acceptance standards for which type of evaluation?

• AProcedure qualification destructive testing
• BWelder qualification visual examination only
• CNondestructive testing (NDT/NDE)
• DIn-service welding only

Annex A of API 1104 addresses which special topic?

• AAlternative Acceptance Standards for Girth Welds based on fracture mechanics
• BIn-Service Welding
• CAutomatic Welding without Filler-Metal Additives
• DMechanized Welding with Filler-Metal Additives

Which API 1104 annex covers Alternative Acceptance Standards for Girth Welds based on engineering critical assessment (ECA) and fracture mechanics?

• AAnnex A
• BAnnex B
• CAnnex C
• DAnnex D

Per Section 5 of API 1104, which of the following is considered an essential variable that requires requalification of a welding procedure specification (WPS) if changed?

• ATravel speed within ±10% of qualified value
• BA change in welding process
• CPolarity from DCEP within the qualified range
• DBrand of consumable within the same AWS classification

Per API 1104, a change in pipe material grouping is generally considered which of the following?

• AA non-essential variable
• BAn essential variable requiring procedure requalification
• CA supplementary essential variable only for impact testing
• DOptional notification to the operator

Per Section 5 of API 1104, what mechanical tests are required on a procedure qualification test weld for pipe with outside diameter greater than 2-3/8 in.?

• ATensile strength only
• BTensile, nick-break, root bend, and face/side bend tests
• CCharpy V-notch impact only
• DHardness traverse only

Per API 1104, what is the minimum tensile strength acceptance requirement for a procedure qualification tensile specimen?

• AAt least the specified minimum tensile strength of the pipe material
• BAt least 50,000 psi regardless of pipe grade
• CEqual to the weld metal nominal tensile strength only
• D70,000 psi minimum for all carbon steel pipe

Per API 1104, a nick-break test specimen exposes the fracture surface for visual examination. Which condition is unacceptable?

• AComplete penetration and fusion across the full cross-section
• BA single gas pocket smaller than 1/16 in. (1.6 mm)
• CA slag inclusion larger than 1/8 in. (3 mm) in length
• DGranular metallic fracture with no visible defects

In API 1104 bend testing, what is the typical acceptance criterion for opened imperfections at the convex (tension) surface?

• ANo imperfections allowed regardless of size
• BImperfections not exceeding 1/8 in. (3 mm) or one-half the nominal wall thickness, whiche…
• CImperfections up to 1/4 in. allowed
• DOnly longitudinal cracks are disqualifying

Per API 1104 Section 6, a welder may qualify using a single qualification test that consists of welding which configuration?

• AA plate butt joint only
• BA single full-section girth weld in the appropriate pipe size and wall thickness
• CA T, K, or Y connection only
• DA spot weld coupon

Per API 1104 Section 6, what is the visual acceptance criterion for the maximum length of any single undercut adjacent to the final bead on the outside of the pipe?

• A1 in. (25 mm) in any continuous 12-in. weld length
• B2 in. (50 mm) in any continuous 12-in. weld length
• CAny undercut is automatically disqualifying
• DUp to the full length of the weld

Per API 1104 Section 6, the multiple qualification test for a welder typically includes welding which two configurations?

• ATwo pipe-to-pipe butt welds in different positions
• BA pipe-to-pipe butt weld plus a branch-on-pipe (lateral) weld
• CTwo plate butt welds
• DA fillet weld coupon plus a single bevel groove

Under API 1104, how long does a welder's qualification remain valid if the welder continues to use the qualified process?

• A30 days
• B6 months
• C12 months without engaging in the welding process
• DIndefinitely once qualified

Per Section 9 of API 1104, the maximum length of any individual linear-type indication (such as a slag inclusion) detected by radiography is generally limited to what value?

• A1/4 in. (6 mm)
• B1/2 in. (13 mm)
• C1 in. (25 mm)
• D2 in. (50 mm) in continuous form

Per Section 9 of API 1104, which of the following is unconditionally unacceptable in any production weld?

• AA single rounded porosity 1/32 in. in size
• BAny crack regardless of size or location (with limited exceptions for shallow crater crac…
• CExternal undercut up to 1/32 in. (0.8 mm) deep
• DInternal concavity in the root pass

Per API 1104 Section 9, scattered porosity (P) is evaluated against a chart based on which two parameters?

• AWeld length and pipe grade
• BMaximum pore size and distribution density
• CPipe wall thickness and welding process only
• DWelder qualification level and pipe diameter

Per API 1104, the term IPM as a defect category refers to:

• AInches per minute (travel speed)
• BInadequate Penetration due to high-low (misalignment) of pipe ends
• CInspector Procedure Manual
• DInternal Pipe Misalignment Limit

Per Section 9 of API 1104, the maximum allowable height of internal concavity (IC) in a single weld is generally limited by which criterion?

• AAny amount of internal concavity is rejectable
• BThe remaining wall thickness must be at least equal to the nominal pipe wall thickness
• CIt is acceptable as long as the density on the radiograph does not exceed that of the thi…
• DIt must not exceed 25% of the pipe diameter

Per Section 9 of API 1104, burn-through (BT) in a weld with specified outside diameter greater than 2-3/8 in. (60.3 mm) and wall thickness 0.500 in. (12.7 mm) or less is rejectable when which criterion is exceeded?

• AThe maximum dimension exceeds 1/4 in. (6 mm) or the pipe wall thickness, whichever is less
• BAny burn-through is rejectable regardless of size
• CThe maximum dimension exceeds 1 in. (25 mm)
• DDensity on the radiograph is greater than the thickest adjoining metal

Per API 1104 Section 9, hollow-bead (HB) porosity is most commonly associated with which welding process?

• ASMAW with cellulosic electrodes
• BGMAW short-circuit transfer (root pass)
• CPlasma arc welding
• DSubmerged arc welding (SAW)

Per Section 9 of API 1104, accumulation of imperfections (AOI) is evaluated for what reason?

• ATo compare welder productivity across crews
• BBecause a series of individually acceptable indications may together exceed limits in a d…
• CTo track training hours of inspection personnel
• DTo certify the radiographic film density

Per API 1104 Section 9 acceptance standards for visual inspection, what is the maximum allowable external undercut adjacent to the cover bead?

• A0 in. — any external undercut is rejectable
• BGreater of 1/32 in. (0.8 mm) or 12.5% of the pipe wall thickness, and 2 in. in any contin…
• C1/4 in. (6 mm) deep regardless of wall thickness
• D1/2 in. (13 mm) deep up to half the weld length

Per Section 9 of API 1104, the maximum allowable indication length for an individual incomplete penetration (IP) without high-low is generally:

• A1 in. (25 mm) in any continuous 12 in. of weld
• B2 in. (50 mm) in any continuous 12 in. of weld
• CEqual to half the weld circumference
• DAny length, as long as it is detected

Per Section 8 of API 1104, who is responsible for verifying that all production welding is performed in accordance with the qualified procedures?

• AThe welder only
• BThe pipeline operator
• CThe company (or its designated representative/inspector)
• DThe pipe manufacturer

Per API 1104, the standard radiographic image quality indicator (IQI) for film radiography is selected based on:

• ASource-to-film distance only
• BThe single-wall material thickness traversed by the radiation
• CThe diameter of the pipe only
• DThe radiographic technique alone (DWE/DWV vs. SWE/SWV)

Per API 1104, what is the typical required radiographic film density range over the weld and adjacent base metal for X-ray sources?

• A0.5 to 1.0 H&D
• B1.8 to 4.0 H&D
• C5.0 to 8.0 H&D
• DDensity is not specified

Per API 1104, which NDT method may be used as an alternative to radiography for girth-weld inspection?

• ALiquid penetrant testing (PT) only
• BMagnetic particle testing (MT) only
• CUltrasonic testing (UT), including automated ultrasonic testing (AUT), when qualified per…
• DEddy current testing (ET) only

Per API 1104, what is the minimum qualification level for radiographic interpreters of pipeline girth welds?

• ANo formal qualification required
• BASNT SNT-TC-1A or equivalent Level II in RT (or company-qualified equivalent)
• CASNT Level III only
• DAWS CWI certification alone

Per API 1104, magnetic particle (MT) inspection is most suitable for detecting which type of indication?

• AVolumetric porosity deep in the weld
• BSurface and near-surface discontinuities in ferromagnetic materials
• CInternal slag in austenitic stainless steel
• DThrough-thickness wall loss only

Per API 1104, liquid penetrant testing (PT) is generally limited to detecting:

• ASubsurface laminations
• BSurface-breaking discontinuities only
• CVolumetric porosity in thick welds
• DInternal cracks regardless of orientation

Per Section 10 of API 1104, when a defect is identified by NDT, the standard typically permits which course of action?

• AOnly complete removal and replacement of the weld
• BRepair of the defect using a qualified repair procedure, or removal of the defective weld
• CAcceptance with operator concurrence regardless of repair
• DGrinding the surface only without further treatment