Question 1

​What is the advantage of the fast freeze flux of some FCA welding electrodes?

Accepted Answer

A)   ​It allows a larger weld bead in all positions to fill the joint faster.
B)   ​The freezing effect cools the weld off faster so the weld is not as hot.
C)   ​When the flux freezes fast, it is easier to remove since it is cold.
D)   ​There is less flux and that is why it cools so quickly.

Question 2

​What is the purpose of the filler passes?

Accepted Answer

A)   ​They add the bulk of the weld metal to the groove.
B)   ​They are used to push any lack of root fusion or lack of 100% penetration.
C)   ​They are used to remove any small trapped pieces of slag or lack of side wall fusion.
D)   ​They are used to cover up any problems in the hot pass.

Question 3

​The frequency of porosity shall not exceed one in each _________ of weld length.

Accepted Answer

A)   ​4 in (100 mm) 
B)   ​3 in (75 mm) 
C)   ​2 in (50 mm) 
D)   ​1 in (25 mm)

Question 4

​Why is it important to clean the outside and inside surface of the pipe next to the groove?

Accepted Answer

​This cleaning is re...

Question 5

​Undercut shall not exceed the lesser of ______% of the base metal thickness or ____________.

Accepted Answer

A)   ​10%, 1/32 in.(0.8 mm) 
B)   ​5%, 1/16 in.(1.6 mm) 
C)   ​8%, 3/64 in.(1.2 mm) 
D)   ​3%, 1/64 in.(0.4 mm)

Question 6

​It is important that tack welds be made _____________________________ so that they do not become weld defects in the finished weld.

Accepted Answer

​with the same weldi...

Question 7

​Any part of the root face that has undercut or trapped slag or any area with more than ____ buildup can be ground down.

Accepted Answer

A)   ​1/32 in.(0.8 mm) 
B)   ​1/16 in.(1.6 mm) 
C)   ​3/32 in.(2.4 mm) 
D)   ​1/8 in.(3 mm)

Question 8

​How many tack welds are needed to hold a pipe joint in alignment for welding?

Accepted Answer

A)   ​4, one at the 12:00, 3:00, 6:00, and 9:00 o'clock positions.
B)   ​5 to 6
C)   ​It depends on the size of the tack welds.
D)   ​The number will vary depending on the pipe's diameter.

Question 9

​What should be done if there is undercut along the top toe of a fillet weld when using the spray transfer method?

Accepted Answer

A)   ​Decrease the work angle to direct more metal onto that side.
B)   ​Change to a leading angle.
C)   ​Change to a trailing angle.
D)   ​Use a perpendicular travel angle to make the weld pool more fluid so it will fill the undercut.

Question 10

​What determines the size, number, and location of tack welds on a pipe joint?

Accepted Answer

​The number and size of tack welds will ...

Question 11

​A small weld coupon may become too hot to allow you to make a good weld, so be sure to give the coupon time to ___________________.

Accepted Answer

​cool betw...

Question 12

​Arc strikes outside of the weld groove are _____________.

Accepted Answer

A)   ​potential defects.
B)   ​easy to grind off if needed.
C)   ​usually small and are no problem.
D)   ​can be left if they are less than 1 in.(25 mm)  from the groove.

Question 13

​Which step is critical when making a code quality weld?

Accepted Answer

A)   ​cleaning
B)   ​tack welding
C)   ​fitting
D)   ​All of the above

Question 14

​When using the spray metal transfer method, what can happen if the tip gets too close to the work?

Accepted Answer

A)   ​The wire may arc out and cause a lot of spatter to be thrown from the weld.
B)   ​The shorter stickout will cause the weld to get hotter due to the reduced resistance in the shorter wire and the weld will become wider and more fluid.
C)   ​The tip may be melted.
D)   ​A flood of sparks as the weld pool is overheated will erupt.

Question 15

​How is the root pass made on pipe?

Accepted Answer

​The root pass is made as a stringer bea...

Question 16

​What type of grinding disk must be used to feather the edge of tack welds?

Accepted Answer

A)   ​A standard grinding stone as long as the root opening has not decreased due to the tack weld shrinkage.
B)   ​A thin grinding disk.
C)   ​A new disk so it can reach all the way down into the groove.
D)   ​A cupped disk so it is easier to work around the curve of the pipe.

Question 17

​For a visual inspection of a pipe weld, what is the acceptable discontinuity for overlap?

Accepted Answer

A)   ​1/32 in.(0.8 mm) 
B)   ​1/16 in.(1.6 mm) 
C)   ​3/32 in.(2.4 mm) 
D)   ​None allowed

Question 18

​The ends of the tack welds must be ground to a ___________.

Accepted Answer

The answer of ​The ends of the tack welds must...

Question 19

​What is another name for the cover pass?

Accepted Answer

A)   ​top
B)   ​finish
C)   ​cap
D)   ​fillup

Question 20

​The maximum reinforcement of the cover pass is ____________.

Accepted Answer

A)   ​1/32 in.(0.8 mm) 
B)   ​1/16 in.(1.6 mm) 
C)   ​3/32 in.(2.4 mm) 
D)   ​1/8 in.(3 mm)

Exam 14: Gas Metal Arc and Flux Cored Arc Welding of Pipe

​It is important that tack welds be made _____________________________ so that they do not become weld defects in the finished weld.

Correct Answerverified​with the same weldi...View AnswerShow Answer

​What determines the size, number, and location of tack welds on a pipe joint?

Correct Answerverified​The number and size of tack welds will ...View AnswerShow Answer

​When using the spray metal transfer method, what can happen if the tip gets too close to the work?

Correct AnswerverifiedShow Answer

​Which step is critical when making a code quality weld?

Correct AnswerverifiedShow Answer

​Arc strikes outside of the weld groove are _____________.

Correct AnswerverifiedShow Answer

​What is the advantage of the fast freeze flux of some FCA welding electrodes?

Correct AnswerverifiedShow Answer

​What should be done if there is undercut along the top toe of a fillet weld when using the spray transfer method?

Correct AnswerverifiedShow Answer

​How is the root pass made on pipe?

Correct Answerverified​The root pass is made as a stringer bea...View AnswerShow Answer

​A small weld coupon may become too hot to allow you to make a good weld, so be sure to give the coupon time to ___________________.

Correct Answerverified​cool betw...View AnswerShow Answer

​Why is it important to clean the outside and inside surface of the pipe next to the groove?

Correct Answerverified​This cleaning is re...View AnswerShow Answer

​What is the purpose of the filler passes?

Correct AnswerverifiedShow Answer

​The maximum reinforcement of the cover pass is ____________.

Correct AnswerverifiedShow Answer

​Any part of the root face that has undercut or trapped slag or any area with more than ____ buildup can be ground down.

Correct AnswerverifiedShow Answer

​What type of grinding disk must be used to feather the edge of tack welds?

Correct AnswerverifiedShow Answer

​The ends of the tack welds must be ground to a ___________.

Correct AnswerverifiedShow Answer

​What is another name for the cover pass?

Correct AnswerverifiedShow Answer

​Undercut shall not exceed the lesser of ______% of the base metal thickness or ____________.

Correct AnswerverifiedShow Answer

​For a visual inspection of a pipe weld, what is the acceptable discontinuity for overlap?

Correct AnswerverifiedShow Answer

​The frequency of porosity shall not exceed one in each _________ of weld length.

Correct AnswerverifiedShow Answer

​How many tack welds are needed to hold a pipe joint in alignment for welding?

Correct AnswerverifiedShow Answer

It is important that tack welds be made _____________________________ so that they do not become weld defects in the finished weld.

Correct Answer
verified
with the same weldi...
View Answer

What determines the size, number, and location of tack welds on a pipe joint?

Correct Answer
verified
The number and size of tack welds will ...
View Answer

When using the spray metal transfer method, what can happen if the tip gets too close to the work?

Correct Answer
verified

Which step is critical when making a code quality weld?

Correct Answer
verified

Arc strikes outside of the weld groove are _____________.

Correct Answer
verified

What is the advantage of the fast freeze flux of some FCA welding electrodes?

Correct Answer
verified

What should be done if there is undercut along the top toe of a fillet weld when using the spray transfer method?

Correct Answer
verified

How is the root pass made on pipe?

Correct Answer
verified
The root pass is made as a stringer bea...
View Answer

A small weld coupon may become too hot to allow you to make a good weld, so be sure to give the coupon time to ___________________.

Correct Answer
verified
cool betw...
View Answer

Why is it important to clean the outside and inside surface of the pipe next to the groove?

Correct Answer
verified
This cleaning is re...
View Answer

What is the purpose of the filler passes?

Correct Answer
verified

The maximum reinforcement of the cover pass is ____________.

Correct Answer
verified

Any part of the root face that has undercut or trapped slag or any area with more than ____ buildup can be ground down.

Correct Answer
verified

What type of grinding disk must be used to feather the edge of tack welds?

Correct Answer
verified

The ends of the tack welds must be ground to a ___________.

Correct Answer
verified

What is another name for the cover pass?

Correct Answer
verified

Undercut shall not exceed the lesser of % of the base metal thickness or ______.

Correct Answer
verified

For a visual inspection of a pipe weld, what is the acceptable discontinuity for overlap?

Correct Answer
verified

The frequency of porosity shall not exceed one in each _________ of weld length.

Correct Answer
verified

How many tack welds are needed to hold a pipe joint in alignment for welding?

Correct Answer
verified