Question 1

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 2

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 3

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

Accepted Answer

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

Question 4

What is another name for the cover pass?

Accepted Answer

A)   Top
B)   Finish
C)   Cap
D)   Fillup

Question 5

Why should the pipe coupon being flame cut be caught with a pair of pliers?

Accepted Answer

A)   To keep the root face from being nicked and damaged
B)   If the coupon hits the floor, it can be knocked out of round.
C)   The round pipe coupon can roll under a table or welder and be hard to get out.
D)   So you do not have to bend down and pick it up

Question 6

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 7

Which tool might be used when assembling a joint for a code quality weld?

Accepted Answer

A)   High-low gauge
B)   Micrometer
C)   Vernier caliper
D)   Outside and inside calipers

Question 8

According to the API code, the maximum offset for pipes of the same nominal diameter 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)

Question 9

What should the gun angle and travel direction be for making a 1G weld from the 1:30 to 10:30 positions?

Accepted Answer

A)   A 45°forehand angle in the direction of travel.
B)   A 14°to 20°forehand angle in the direction of travel.
C)   A 30°to 90°backhand angle in the direction of travel.
D)   A 60°backhand angle in the opposite direction of travel.

Question 10

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 11

How is the root pass made on pipe?

Accepted Answer

The root pass is made as a stringer bead...

Question 12

Unless a backing ring is used, most root passes are made with the _____ process.

Accepted Answer

The answer of Unless a backing ring is used, most...

Question 13

Why are the ends of tack welds ground to a featheredge?

Accepted Answer

The ends of tack welds must be...

Question 14

If the contact tube tip melts, the copper from the tip might enter the weld pool and make a _____________________ in the weld.

Accepted Answer

The answer of If the contact tube tip melts, the...

Question 15

The cover pass cannot be any wider than ____ wider than the groove being welded.

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 16

It is faster to make the root weld using the downhill technique if ______________________.

Accepted Answer

A)   you can see all of the joint so you can follow it
B)   the root opening is narrow so the weld has something to support it
C)   the voltage is lowered by 5 to 10 volts
D)   the root opening is uniform and not too wide or narrow

Question 17

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 18

The maximum diameter of any single porosity shall not exceed ______________.

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 19

Filler passes only need to have complete fusion to the previous weld and do not need to have ________.

Accepted Answer

The answer of Filler passes only need to have complete...

Question 20

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.

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

According to the API code, the maximum offset for pipes of the same nominal diameter is ____.

Correct AnswerverifiedShow Answer

Why are the ends of tack welds ground to a featheredge?

Correct AnswerverifiedThe ends of tack welds must be...View AnswerShow Answer

What is another name for the cover pass?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which tool might be used when assembling a joint for a code quality weld?

Correct AnswerverifiedShow Answer

Why should the pipe coupon being flame cut be caught with a pair of pliers?

Correct AnswerverifiedShow Answer

The maximum diameter of any single porosity shall not exceed ______________.

Correct AnswerverifiedShow Answer

Unless a backing ring is used, most root passes are made with the _____ process.

Correct AnswerverifiedShow Answer

Filler passes only need to have complete fusion to the previous weld and do not need to have ________.

Correct AnswerverifiedShow Answer

Which step is critical when making a code quality weld?

Correct AnswerverifiedShow Answer

It is faster to make the root weld using the downhill technique if ______________________.

Correct AnswerverifiedShow Answer

What should the gun angle and travel direction be for making a 1G weld from the 1:30 to 10:30 positions?

Correct AnswerverifiedShow Answer

If the contact tube tip melts, the copper from the tip might enter the weld pool and make a _____________________ in the weld.

Correct AnswerverifiedShow Answer

Arc strikes outside of the weld groove are _____________.

Correct AnswerverifiedShow Answer

The cover pass cannot be any wider than ____ wider than the groove being welded.

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

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

Correct AnswerverifiedShow Answer

How is the root pass made on pipe?

Correct AnswerverifiedThe root pass is made as a stringer bead...View AnswerShow Answer

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The ends of tack welds must be...
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The root pass is made as a stringer bead...
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