HMORRIS API-577-QUESTIONS AND ANSWERS
The two primary concerns when welding on in-service piping and equipment are
______________________ and __________________.
- Burn thru and Cracking
- Rupture and Cracking
- Burn thru and Rupture - Answers - Burn thru and Cracking
To minimize burn through, the first weld pass to equipment or piping less than
________________ thick should be made with ________________________ diameter
welding electrode to limit heat input.
- 1/2 in.,3/16 in. or smaller.
- 1/4 in.,3/32 in. or smaller.
- 1/4 in., 3/16 in or smaller.
- ... - Answers - 1/4 in.,3/32 in. or smaller.
What type of welding electrode should only be used when welding on in-service piping
or performing hot tap operations?
- Cellulose electrodes.
- High hydrogen electrodes.
- E7016, E7018 and E7010.
- E7015, E7018 and E7016. - Answers - E7015, E7018 and E7016.
Corrective action for a non-conformance will depend upon?
- the nature of the non-conformance and its impact on the properties of the weldment
- size of discontinuity causing the non-conformance
- potential consequence of the non-conformance
- probability of the non-conformance causing weld to fail - Answers - the nature of the
non-conformance and its impact on the properties of the weldment
Tasks that a welding inspector should perform;
- task prior to welding, during welding and upon completion of welding
- QC and QA activities
- review of welding procedures and welder qualifications
- Approve repair procedures - Answers - task prior to welding, during welding and upon
completion of welding
Visual inspection of a piping weld requires a minimum light intensity of;
- 1000 μW/cm2
- 100 foot candles
,- 1000 foot candles
- 100 μW/cm2 - Answers - 100 foot candles
Which of the following electrode designations can be a filler metal for either GTAW or
GMAW welding process?
- E6010
- E70T-1
- EX71T-1
- ER70S-2 - Answers - ER70S-2
What does the "S" mean in the electrode identification system for GMAW and GTAW
welding processes?
- Sulfur
- Solid wire
- Solid Flux
- Strength - Answers - Solid wire
What does the "XX" mean in the electrode identification system for GMAW or GTAW
welding processes?
- Strength
- Electrode wire
- Chemical Composition
- Solid wire - Answers - Strength
Personnel "shall" have a vision test performed.....
- Every 6 months
- Every 90 days
- Annually
- Bi-annually - Answers - Annually
Personnel "shall" have a annual vision test to assure natural or corrective near distance
acuity. They must be able to read the _______ letters on the standard ____________ or
equivalent near vision test.
- j-1, Yager test
- l-1, jaeger test
- H-1, jaeger test
- j-1, ... - Answers - j-1, ...
When welding on in-service piping the flow rate of a liquid or gas in the pipe should be
between....
,- 1.2-4.0 ft per sec
- 1.3-4.0 ft per sec
- 1.3-4.1 per sec
- 1.5-4.0 ft per sec - Answers - 1.3-4.0 ft per sec
Hot tap and in-service welding operations should be performed with only....
- High hydrogen consumables
- No hydrogen consumables
- Low hydrogen consumables
- Low chloride consumables - Answers - Low hydrogen consumables
Globular transfer is a mode of what type of welding process?
- FCAW
- GMAW
- SMAW
- GTAW - Answers - GMAW
Which welding process has a low tolerance for contaminants on filler and base metals?
- GMAW
- GTAW
- SMAW
- FCAW - Answers - GTAW
When using SMAW welding process, deposition rates are lower than which of the
following processes?
- SAW
- GMAW
- FCAW
- All of the above - Answers - All of the above
All of the following are advantages of the SMAW welding process, except:
- Equipment is relatively simple, inexpensive, and portable
- Process is suitable for most of the commonly used metals and alloys
- deposition rates are higher than GMAW process
- Process can be used in areas of limited access - Answers - deposition rates are
higher than GMAW process
What is the definition of a defect.
- An imperfection of a type or magnitude exceeding the acceptable criteria
- An imperfection that is with the acceptance criteria
, - Any imperfection found acceptable or reject able
- A change in a piping system from its original design - Answers - An imperfection of a
type or magnitude exceeding the acceptable criteria
Welders who qualify with one filler metal are qualified to weld with all filler metals having
the same:
- A number
- F number
- P number
- S number - Answers - F number
Electrodes and welding rods are assigned ________________ to reduce the number of
welding procedures and performance qualifications.
- A numbers
- P numbers
- S numbers
- F numbers - Answers - F numbers
What should be done if welding consumables become wet?
- Dry in a separate special ovens
- Discarded
- Use only on P-1 though-P-11 base metals
- Use only low alloy steels. - Answers - Discarded
What should be done if welding consumables become slightly damp?
- Use only on low alloy steels
- Discard
- Dry in a separate special oven.
- Use with in 12 hours - Answers - Dry in a separate special oven.
During the calibration of the UT instrument prior to performing UT on a hot material, the
calibration block should be at what temperature?
- Ambient Temperature
- no less than 70 deg F
- above 32 deg F
- within 25 deg F of the part to be examined - Answers - within 25 deg F of the part to
be examined
Which of the following is an autogenous weld?
- Weld made with GTAW process with ER70S-2 filler metal
The two primary concerns when welding on in-service piping and equipment are
______________________ and __________________.
- Burn thru and Cracking
- Rupture and Cracking
- Burn thru and Rupture - Answers - Burn thru and Cracking
To minimize burn through, the first weld pass to equipment or piping less than
________________ thick should be made with ________________________ diameter
welding electrode to limit heat input.
- 1/2 in.,3/16 in. or smaller.
- 1/4 in.,3/32 in. or smaller.
- 1/4 in., 3/16 in or smaller.
- ... - Answers - 1/4 in.,3/32 in. or smaller.
What type of welding electrode should only be used when welding on in-service piping
or performing hot tap operations?
- Cellulose electrodes.
- High hydrogen electrodes.
- E7016, E7018 and E7010.
- E7015, E7018 and E7016. - Answers - E7015, E7018 and E7016.
Corrective action for a non-conformance will depend upon?
- the nature of the non-conformance and its impact on the properties of the weldment
- size of discontinuity causing the non-conformance
- potential consequence of the non-conformance
- probability of the non-conformance causing weld to fail - Answers - the nature of the
non-conformance and its impact on the properties of the weldment
Tasks that a welding inspector should perform;
- task prior to welding, during welding and upon completion of welding
- QC and QA activities
- review of welding procedures and welder qualifications
- Approve repair procedures - Answers - task prior to welding, during welding and upon
completion of welding
Visual inspection of a piping weld requires a minimum light intensity of;
- 1000 μW/cm2
- 100 foot candles
,- 1000 foot candles
- 100 μW/cm2 - Answers - 100 foot candles
Which of the following electrode designations can be a filler metal for either GTAW or
GMAW welding process?
- E6010
- E70T-1
- EX71T-1
- ER70S-2 - Answers - ER70S-2
What does the "S" mean in the electrode identification system for GMAW and GTAW
welding processes?
- Sulfur
- Solid wire
- Solid Flux
- Strength - Answers - Solid wire
What does the "XX" mean in the electrode identification system for GMAW or GTAW
welding processes?
- Strength
- Electrode wire
- Chemical Composition
- Solid wire - Answers - Strength
Personnel "shall" have a vision test performed.....
- Every 6 months
- Every 90 days
- Annually
- Bi-annually - Answers - Annually
Personnel "shall" have a annual vision test to assure natural or corrective near distance
acuity. They must be able to read the _______ letters on the standard ____________ or
equivalent near vision test.
- j-1, Yager test
- l-1, jaeger test
- H-1, jaeger test
- j-1, ... - Answers - j-1, ...
When welding on in-service piping the flow rate of a liquid or gas in the pipe should be
between....
,- 1.2-4.0 ft per sec
- 1.3-4.0 ft per sec
- 1.3-4.1 per sec
- 1.5-4.0 ft per sec - Answers - 1.3-4.0 ft per sec
Hot tap and in-service welding operations should be performed with only....
- High hydrogen consumables
- No hydrogen consumables
- Low hydrogen consumables
- Low chloride consumables - Answers - Low hydrogen consumables
Globular transfer is a mode of what type of welding process?
- FCAW
- GMAW
- SMAW
- GTAW - Answers - GMAW
Which welding process has a low tolerance for contaminants on filler and base metals?
- GMAW
- GTAW
- SMAW
- FCAW - Answers - GTAW
When using SMAW welding process, deposition rates are lower than which of the
following processes?
- SAW
- GMAW
- FCAW
- All of the above - Answers - All of the above
All of the following are advantages of the SMAW welding process, except:
- Equipment is relatively simple, inexpensive, and portable
- Process is suitable for most of the commonly used metals and alloys
- deposition rates are higher than GMAW process
- Process can be used in areas of limited access - Answers - deposition rates are
higher than GMAW process
What is the definition of a defect.
- An imperfection of a type or magnitude exceeding the acceptable criteria
- An imperfection that is with the acceptance criteria
, - Any imperfection found acceptable or reject able
- A change in a piping system from its original design - Answers - An imperfection of a
type or magnitude exceeding the acceptable criteria
Welders who qualify with one filler metal are qualified to weld with all filler metals having
the same:
- A number
- F number
- P number
- S number - Answers - F number
Electrodes and welding rods are assigned ________________ to reduce the number of
welding procedures and performance qualifications.
- A numbers
- P numbers
- S numbers
- F numbers - Answers - F numbers
What should be done if welding consumables become wet?
- Dry in a separate special ovens
- Discarded
- Use only on P-1 though-P-11 base metals
- Use only low alloy steels. - Answers - Discarded
What should be done if welding consumables become slightly damp?
- Use only on low alloy steels
- Discard
- Dry in a separate special oven.
- Use with in 12 hours - Answers - Dry in a separate special oven.
During the calibration of the UT instrument prior to performing UT on a hot material, the
calibration block should be at what temperature?
- Ambient Temperature
- no less than 70 deg F
- above 32 deg F
- within 25 deg F of the part to be examined - Answers - within 25 deg F of the part to
be examined
Which of the following is an autogenous weld?
- Weld made with GTAW process with ER70S-2 filler metal
