Page 1 out of 8. Viewing questions 1-15 out of 110
Question 1
Which of the following is the test that can measure most aspects of weldability?
A.
Impact testing
B.
There is no single test
C.
Weld tension tests
D.
Bend testing
Answer:
B
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Question 2
Base metals are assigned P-numbers by the ASME Code, Section IX to reduce the number of:
A.
Required welding procedure specifications.
B.
Required welding procedure qualifications.
C.
Required procedure and performance qualifications.
D.
Required mechanical tests.
Answer:
C
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Question 3
The WPS gives the welder specific guidelines to:
A.
Set the machine amperage, voltage, and travel speed.
B.
Confirm the project heat input is followed during welding.
C.
Successfully complete production welds.
D.
Make imperfection/defect-free welds.
Answer:
A
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Question 4
When performing a carbon steel to carbon steel hot tap where the CE of one of the metals is greater than 0.42%, which of the following electrodes should be used?
A.
E7048-H4
B.
E7048
C.
E7018-A1
D.
E7018
Answer:
D
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Question 5
Which of the following is a commonly accepted advantage of flux core arc welding (FCAW)?
A.
Equipment is simple, inexpensive, and portable.
B.
The slag supports and shapes the weld bead.
C.
There is a reduced requirement for ventilation.
D.
There is minimal postweld cleanup.
Answer:
B
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Question 6
Hardenability of a steel can be an indirect indicator of:
A.
Weldability
B.
Toughness
C.
Strength
D.
Cooling rate
Answer:
A
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Question 7
The most common measure of weldability and susceptibility to hot cracking of austenitic stainless steels is the ferrite content of the weld metal. Which of the following ranges is the recommended minimum ferrite content of the weld metal needed to prevent cracking?
A.
1%-10%
B.
5%-20%
C.
8%-18%
D.
15%-20%
Answer:
C
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Question 8
For what maximum outside diameter may a radiographic technique be used in which the radiation passes through two walls and the weld in both walls is viewed for acceptance?
A.
1.5 in. (38.0 mm)
B.
2.5 in. (63.5 mm)
C.
3 in. (76.2 mm)
D.
3.5 in. (90.0 mm)
Answer:
C
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Question 9
In hardness testing of carbon steel weldment specimens, there is an approximate relationship between hardness and:
A.
Toughness
B.
Tensile strength
C.
Ductility
D.
Yield strength
Answer:
B
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Question 10
When welding nickel alloys, it is important that:
A.
The bevel angle be wide enough to allow oscillation of welding torch.
B.
The cooling rate be controlled in order to prevent rapid cooling.
C.
Preheating is always performed to prevent hot cracking.
D.
A wide face and thinner bevel be used.
Answer:
B
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Question 11
Which of the following can result from residual magnetism left in a partially completed weld?
A.
Excessive distortion
B.
Tendency of weld pool to be sluggish
C.
Deflection of the weld arc
D.
Solidification cracking
Answer:
C
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Question 12
What is the major cause of lack of fusion in all welding processes involving carbon steel?
A.
Inadequate preheat
B.
Improper welding speed
C.
Improper heat input and improper welding technique
D.
Not using a low hydrogen electrode or improper shielding
Answer:
C
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Question 13
What is(are) the most appropriate action(s) to prepare an in-service carbon steel piping system that has been in caustic service for welding?
A.
Neutralize and clean the surface within 6 in. (150 mm) of weld bevels
B.
Steam out the piping system and dry
C.
Verify with pH paper that any surface liquid is “basic"
D.
Grind the surfaces near the bevel to remove contaminants
Answer:
A
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Question 14
Which welding process produces a fast-freezing weld pool and is generally suited for joining thin sections or root passes?
A.
GMAW-S
B.
GTAW
C.
GMAW
D.
FCAW
Answer:
B
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Question 15
What is the "area of interest" on a weld radiograph?
A.
The entire radiograph minus 2 in. (50.8 mm) from the edges
B.
Only the area of contrasting density
C.
The specific portion of a radiograph that needs to be evaluated
D.
The portion that is less than 3t from the center of the radiograph, where t is the thickness of the weld