ASME SECTION 91 2026 PRESSURE EQUIPMENT
DESIGN AND SAFETY STUDY GUIDE FULL
PAPER AND ANSWERS
◉ Charpy V-notch tests are performed to determine a weldment's
A. Tensile strength
B. Ductility
C. Notch toughness
D. All of above.
Answer: C. QW-171
◉ A welder making a groove weld using the SAW process on P1
materials may be qualified using radiography.
A. True
B. False.
Answer: A.
◉ When a tensile specimen breaks in the base metal outside of the
weld or fusion line, the strength recorded may be at most ___ below
the specified tensile and be accepted.
A. 3.5%
B. .5%
,C. 5%
D. All of the above.
Answer: C. Table QW-153.1
◉ Guided-bend specimens shall have no open defects in the weld or
heat effected zone exceeding ________________ measured in any
direction on the convex surface of the specimen after bending.
A. 1/16"
B. 3/32"
C. 1/8"
D. None of the above.
Answer: C. QW-163
◉ When using radiographs to qualify welders, the acceptance
standards used are found in
A. ASME Section V
B. ASME Section IX
C. ASME Section VIII
D. The referencing code.
Answer: B.
◉ A WPS must describe:
,A. Essential variables
B. Nonessential variables
C. Supplementary essential variables when required for notch
toughness
D. All of the above.
Answer: D. QW-200.1
◉ A PQR must describe:
A. Nonessential variables
B. Essential variables
C. Results of Welder Qualification tests
D. Project description & NDE methods.
Answer: B. QW-200.2
◉ The ______ must certify the PQR as accurate.
A. Inspector
B. Manufacturer or contractor
C. Welder
D. All of the above.
Answer: B
, ◉ For the SMAW process ______________ is an essential variable for the
WPS.
A. Groove design
B. Post Weld Heat Treatment
C. Root spacing
D. Method of cleaning.
Answer: B
◉ For the SAW process _____________ is an essential variable for the
WPS.
A. Supplemental powdered filler metal (if used)
B. Filler metal diameter
C. Preheat maintenance
D. Addition or deletion of peening.
Answer: A
◉ The basic purpose of testing a welder is to establish the welder's
______________.
A. Knowledge of welding requirements
B. Ability to deposit sound weld metal
C. mechanical ability to operate equipment
D. General attitude toward welding inspectors.
DESIGN AND SAFETY STUDY GUIDE FULL
PAPER AND ANSWERS
◉ Charpy V-notch tests are performed to determine a weldment's
A. Tensile strength
B. Ductility
C. Notch toughness
D. All of above.
Answer: C. QW-171
◉ A welder making a groove weld using the SAW process on P1
materials may be qualified using radiography.
A. True
B. False.
Answer: A.
◉ When a tensile specimen breaks in the base metal outside of the
weld or fusion line, the strength recorded may be at most ___ below
the specified tensile and be accepted.
A. 3.5%
B. .5%
,C. 5%
D. All of the above.
Answer: C. Table QW-153.1
◉ Guided-bend specimens shall have no open defects in the weld or
heat effected zone exceeding ________________ measured in any
direction on the convex surface of the specimen after bending.
A. 1/16"
B. 3/32"
C. 1/8"
D. None of the above.
Answer: C. QW-163
◉ When using radiographs to qualify welders, the acceptance
standards used are found in
A. ASME Section V
B. ASME Section IX
C. ASME Section VIII
D. The referencing code.
Answer: B.
◉ A WPS must describe:
,A. Essential variables
B. Nonessential variables
C. Supplementary essential variables when required for notch
toughness
D. All of the above.
Answer: D. QW-200.1
◉ A PQR must describe:
A. Nonessential variables
B. Essential variables
C. Results of Welder Qualification tests
D. Project description & NDE methods.
Answer: B. QW-200.2
◉ The ______ must certify the PQR as accurate.
A. Inspector
B. Manufacturer or contractor
C. Welder
D. All of the above.
Answer: B
, ◉ For the SMAW process ______________ is an essential variable for the
WPS.
A. Groove design
B. Post Weld Heat Treatment
C. Root spacing
D. Method of cleaning.
Answer: B
◉ For the SAW process _____________ is an essential variable for the
WPS.
A. Supplemental powdered filler metal (if used)
B. Filler metal diameter
C. Preheat maintenance
D. Addition or deletion of peening.
Answer: A
◉ The basic purpose of testing a welder is to establish the welder's
______________.
A. Knowledge of welding requirements
B. Ability to deposit sound weld metal
C. mechanical ability to operate equipment
D. General attitude toward welding inspectors.
