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100+ Free AWS D1.5 Endorsement Practice Questions

Pass your AWS D1.5 Bridge Welding Endorsement exam on the first try — instant access, no signup required.

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Per D1.5, repair welding of an FCM:

A
B
C
D
to track
2026 Statistics

Key Facts: AWS D1.5 Endorsement Exam

50

Scorable Questions

AWS D1.5 Endorsement page

72%

Passing Score

AWS minimum

2 hours

Open-Book Exam Time

Prometric CBT

$445 / $540

Member / Nonmember Fee

AWS 2026 pricing

Clause 12

Fracture Control Plan (FCM)

AASHTO/AWS D1.5:2020

AASHTO M270

Base Metal Standard (A709)

D1.5 Clauses 1-2

The AWS D1.5 Endorsement is a 50-question open-book exam at Prometric, with a 2-hour time limit and a 72% passing score. The fee is $445 for AWS members and $540 for non-members in 2026. Candidates must already hold a current CWI or SCWI. The exam emphasizes Clause 12 (Fracture Control Plan for nonredundant FCM members), CVN testing zones (T1/T2/T3 and F1/F2/F3), AASHTO M270 (A709) steel grades, and bridge-specific NDT/UT/RT acceptance criteria. Most candidates study 60-100 hours over 4-8 weeks using the AASHTO/AWS D1.5:2020 Bridge Welding Code as their primary reference.

Sample AWS D1.5 Endorsement Practice Questions

Try these sample questions to test your AWS D1.5 Endorsement exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which AWS document is the reference standard for the D1.5 Endorsement examination?
A.AWS D1.1 Structural Welding Code – Steel
B.AWS D1.6 Structural Welding Code – Stainless Steel
C.AASHTO/AWS D1.5M/D1.5 Bridge Welding Code
D.AWS B2.1 Welding Procedure Specification
Explanation: The D1.5 Endorsement is based on AASHTO/AWS D1.5M/D1.5 Bridge Welding Code (current edition referenced is 2020). It is a joint AASHTO/AWS document that governs welded highway bridge construction. D1.1 is for general structural steel, D1.6 is for stainless, and B2.1 is the general WPS standard.
2How many scorable multiple-choice questions are on the AWS D1.5 Endorsement examination?
A.30
B.40
C.50
D.60
Explanation: The D1.5 Endorsement consists of 50 scorable multiple-choice questions. Candidates must answer at least 72% correctly to pass. The exam is open book at a Prometric test center and the candidate may use a personal printed bound copy or the electronic copy provided in the testing system.
3What is the minimum passing score for the D1.5 Endorsement exam?
A.65%
B.70%
C.72%
D.75%
Explanation: AWS requires a minimum score of 72% to pass the D1.5 Endorsement. This is consistent with the passing threshold for the core CWI exam Parts A, B, and C, and for other CWI endorsement examinations.
4Per AWS D1.5, which clause specifically addresses the Fracture Control Plan (FCP) for nonredundant members?
A.Clause 5
B.Clause 6
C.Clause 11
D.Clause 12
Explanation: Clause 12 of AASHTO/AWS D1.5 contains the AASHTO/AWS Fracture Control Plan (FCP) for nonredundant members. It establishes the additional fabrication, qualification, inspection, and material toughness requirements applicable to fracture-critical members (FCMs). Clauses 5 and 6 cover qualification and inspection respectively for non-FCM work.
5What is the definition of a Fracture Critical Member (FCM) under AWS D1.5?
A.Any compression member of a bridge
B.A tension member or tension component whose failure would be expected to result in collapse of the bridge
C.Any weld with a stress range above 16 ksi
D.Any member fabricated from HPS steel
Explanation: D1.5 Clause 12 defines an FCM as a tension member, or a tension component of a bending member (including those subject to reversal of stress), whose failure would be expected to result in collapse of the bridge. Compression members and members with secondary load paths typically are not classified as fracture critical.
6Which AASHTO material specification is referenced by D1.5 as the principal standard for structural steels used in highway bridges?
A.AASHTO M183
B.AASHTO M270 (ASTM A709)
C.AASHTO M222
D.ASTM A36
Explanation: D1.5 references AASHTO M270/M270M (equivalent to ASTM A709/A709M) for structural steels used in highway bridges, including Grades 36, 50, 50W, HPS 50W, HPS 70W, and HPS 100W. Older designations such as M183 have been superseded by M270.
7Under D1.5, the CVN test temperature zone designation for the contiguous United States outside the southern and arctic regions is which zone?
A.Zone 1
B.Zone 2
C.Zone 3
D.Zone 4
Explanation: D1.5 (consistent with AASHTO) defines three temperature zones based on the lowest anticipated service temperature: Zone 1 (above 0 deg F, much of the continental U.S.), Zone 2 (-1 to -30 deg F), and Zone 3 (-31 to -60 deg F, arctic conditions). Steel CVN test temperatures and energy requirements increase in severity with higher zone numbers.
8Per D1.5 Clause 12, CVN requirements for fracture critical members (FCM) compared to non-fracture critical members are:
A.Lower energy at the same temperature
B.Identical to non-FCM
C.Higher absorbed energy and/or lower test temperature
D.Required only for the weld metal, not base metal
Explanation: Clause 12 imposes higher minimum CVN energy values and/or lower test temperatures for FCM base metal, weld metal, and HAZ relative to the non-FCM (T-rated) requirements. The intent is to ensure adequate notch toughness in members whose failure could cause bridge collapse.
9In D1.5 nomenclature, what does the designator 'T' indicate when applied to CVN requirements?
A.Tension member only
B.Non-fracture critical (regular) toughness requirement
C.Fracture critical toughness requirement
D.Tack weld test specimen
Explanation: 'T' designators (T1, T2, T3) indicate the CVN toughness requirements for non-fracture-critical members in temperature Zones 1, 2, and 3. 'F' designators (F1, F2, F3) indicate the more stringent fracture-critical toughness values for the same zones.
10For D1.5 Zone 2 conditions, the typical minimum CVN energy requirement for fracture-critical (F2) base metal is:
A.15 ft-lbf avg at +40 deg F
B.20 ft-lbf avg at +70 deg F
C.25 ft-lbf avg at +40 deg F
D.35 ft-lbf avg at -10 deg F
Explanation: For Zone 2 fracture-critical (F2) base metal in the Grade 50/50W range, D1.5 (via AASHTO M270) requires a typical minimum CVN average of 25 ft-lbf at +40 deg F. The corresponding non-FCM (T2) requirement is 15 ft-lbf average at +40 deg F. Exact values vary with grade and thickness.

About the AWS D1.5 Endorsement Exam

The AWS D1.5 Bridge Welding Endorsement is a supplemental credential for active Certified Welding Inspectors (CWIs) and Senior Certified Welding Inspectors (SCWIs) who work on highway bridge fabrication and erection. The 50-question, open-book exam at Prometric tests in-depth knowledge of the AASHTO/AWS D1.5 Bridge Welding Code, including fracture critical members (FCM) under Clause 12, Charpy V-notch (CVN) requirements, AASHTO M270 (A709) base metal grades, prequalified WPSs, and bridge-specific NDT acceptance.

Questions

50 scored questions

Time Limit

2 hours

Passing Score

72%

Exam Fee

$445 / $540 (AWS (Prometric))

AWS D1.5 Endorsement Exam Content Outline

15%

General Requirements & Code Scope (Clause 1)

Scope of D1.5 vs D1.1, definitions, Engineer/Contractor/Inspector roles, code-vs-contract conflicts, AASHTO/AWS joint authorship.

15%

Design of Welded Connections (Clause 2)

AASHTO LRFD references, fatigue categories, allowable stress ranges, prequalified joints, backing bar rules, base metal selection (A709 grades).

10%

Workmanship (Clause 3)

Tolerances on undercut, overlap, reinforcement, misalignment; access holes; thermal cutting surface finish; tack welds; run-off tabs.

10%

Technique (Clause 4)

Preheat/interpass tables, heat input control, low-hydrogen practice, electrode storage/exposure, environment (wind, temperature).

15%

Qualification (Clause 5)

WPS, PQR with mandatory CVN testing, welder performance qualification, operator qualification, retest rules, continuity (6 months).

15%

Inspection (Clause 6)

QC/QA roles, VT before/during/after, RT/UT/MT/PT requirements, acceptance criteria for tension vs compression, NDT personnel (ASNT SNT-TC-1A/CP-189).

5%

SAW, ESW/EGW, Stud Welding (Clauses 7-9)

SAW flux/wire approval, crushed slag, NGI-ESW narrow-gap procedures, stud welding qualification and production tests.

5%

Strengthening & Repair (Clauses 10-11)

Welding on existing bridges, retrofit considerations, repair procedures and hydrogen control.

10%

Fracture Control Plan & FCM (Clause 12)

FCM identification, AISC FCM endorsement, CVN zones (T1/T2/T3 vs F1/F2/F3), 100% NDT, written FCP, Engineer-approved repair procedures.

How to Pass the AWS D1.5 Endorsement Exam

What You Need to Know

  • Passing score: 72%
  • Exam length: 50 questions
  • Time limit: 2 hours
  • Exam fee: $445 / $540

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

AWS D1.5 Endorsement Study Tips from Top Performers

1Tab and index your D1.5 codebook before the exam - speed of lookup is more valuable than memorization since the test is open-book.
2Master Clause 12 thoroughly: FCM definition, CVN zones T1/T2/T3 and F1/F2/F3, 100% NDT, AISC FCM endorsement, written FCP, Engineer approvals.
3Know the differences between D1.5 and D1.1: required CVN on PQR, GMAW-S prohibition, tension-vs-compression acceptance, AASHTO M270 grades.
4Memorize a short list of fixed numbers: 72% pass, 6-month continuity, 5 mph wind limit, 0 deg F minimum welding temperature, typical CVN values (e.g., 25 ft-lbf at +40 F for F2).
5Practice with timed sets - 50 questions in 120 minutes is ~2.4 minutes/question; budget more on Clause 12 lookups and less on definitions.

Frequently Asked Questions

What is the AWS D1.5 Endorsement and who is eligible?

The D1.5 Endorsement is a supplemental credential that demonstrates a CWI or SCWI's mastery of AASHTO/AWS D1.5 Bridge Welding Code. To sit for the endorsement, you must hold a current CWI or SCWI certification in good standing. The endorsement is widely required for inspectors working on state DOT highway bridge projects and for FCM fabricator certification.

How many questions are on the D1.5 Endorsement exam and how long is it?

The D1.5 Endorsement is 50 multiple-choice questions with a 2-hour time limit. It is open-book, delivered as a CBT at Prometric, and you may use the electronic D1.5 codebook provided in the system or bring your own printed bound copy. The passing score is 72%.

How much does the AWS D1.5 Endorsement cost in 2026?

The 2026 fee is $445 for AWS members and $540 for non-members. The fee covers one attempt. Retests are billed separately. Most candidates also invest in the D1.5 codebook ($650-$800 list price for the 2020 edition) and optionally a 3-5 day prep seminar.

What does Clause 12 (Fracture Control Plan) cover, and why does it dominate the exam?

Clause 12 governs nonredundant 'fracture critical members' (FCMs) - tension members whose failure could collapse the bridge. It imposes higher CVN toughness (F-designators vs T-designators), 100% volumetric NDT plus MT, AISC FCM-certified fabricators, written Fracture Control Plans, Engineer-approved repair procedures, tighter electrode controls, and stricter UT/RT acceptance. Roughly 15% of exam items focus on Clause 12 because errors here have catastrophic consequences.

What is the difference between D1.5 and D1.1?

D1.5 is for highway bridges and is jointly published with AASHTO; D1.1 is for general structural steel. D1.5 always requires CVN testing on PQR, prohibits GMAW-S, has tighter workmanship limits in tension members, references AASHTO M270 (A709) base metals, and adds Clause 12 for FCMs. D1.1 PQRs typically do not require CVN unless contract documents demand it, and D1.1 does not have an FCM clause.

How should I prepare for the D1.5 Endorsement?

Plan 60-100 study hours over 4-8 weeks. Buy the AASHTO/AWS D1.5:2020 Bridge Welding Code and tab the major clauses (especially 5, 6, and 12). Practice 100+ questions on FCM/CVN, prequalified WPSs, and NDT acceptance to build codebook lookup speed - since the exam is open-book, finding answers fast is more valuable than memorization. Take a final timed practice exam at 72% target.