Question 1

​What is the purpose of the filler passes?

Accepted Answer

Filler passes are used to add the bulk of the weld metal to the groove, building up the weld to the desired thickness and strength.

Question 2

​The hot pass can be made ________________; however, it is more difficult to keep good fusion using the ____________technique.

Accepted Answer

D

Question 3

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

Accepted Answer

A

Question 4

​Which of the following is not something that a hot pass can do?

Accepted Answer

Porosity in the root pass cannot be removed by a hot pass.

Question 5

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

Accepted Answer

The downhill technique is faster when the root opening is uniform and not too wide or narrow, as it allows for consistent and efficient welding without the need for additional adjustments or support.

Question 6

​Why do you need to be careful not to gouge the pipe bevel surface?

Accepted Answer

Deep gouges can be considered defects in the pipe bevel surface, which can compromise the quality and integrity of the weld joint.

Question 7

​What can be used to force the ends of a pipe in alignment?

Accepted Answer

A dog and wedge, also known as a pipe alignment tool, is specifically designed to force the ends of a pipe in alignment. Vise grips and pliers may not provide enough force and could damage the pipe. A heating torch is used to soften the pipe for bending or shaping, not alignment.

Question 8

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

Accepted Answer

A high-low gauge is used to check the alignment of pipes or plates before welding, ensuring a quality weld joint.

Question 9

​What is the bevel angle for the end of pipe?

Accepted Answer

The standard bevel angle for the end of a pipe is typically 30° for the angle itself and 35° for the total included angle, which is common in welding to ensure proper joint preparation.

Question 10

​How should the weld progress if the root opening is wider than normal?

Accepted Answer

When the root opening is wider than normal, welding uphill is recommended to ensure better control of the weld pool and penetration.

Question 11

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

Accepted Answer

All of the choices are critical when making a code quality weld. Cleaning the materials to be welded ensures that there is no dirt, oil, or other contaminants that may affect the weld quality. Tack welding ensures proper alignment before the final welding, and fitting is important for proper weld penetration and joint strength.

Question 12

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

Accepted Answer

The answer of ​According to the API code, the maximum...

Question 13

​Arc strikes outside of the weld groove are _____________.

Accepted Answer

Arc strikes outside of the weld groove can potentially weaken the material and create defects, making them a problem that should be addressed.

Question 14

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

Accepted Answer

A thin grinding disc is the best choice to feather the edge of tack welds as it will allow for precise grinding without removing excess material. Using a standard grinding stone may remove too much material and reduce the root opening, while a cupped disk may not be effective on flat surfaces. A new disk is not necessary as long as the current one is not worn down.

Question 15

​The filler passes should be stopped when the surface is approximately ____________ below the pipe's outer surface.

Accepted Answer

The answer of ​The filler passes should be stopped when...

Question 16

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

Accepted Answer

The answer of ​Why should the pipe coupon being flame...

Question 17

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

Accepted Answer

The answer of ​How many tack welds are needed to...

Question 18

​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

Any area with more than 1/16 in. (1.6 mm) buildup should be ground down to ensure proper welding penetration and fusion.

Question 19

​Why is the root pass weld started on top of a tack weld?

Accepted Answer

Starting the root pass weld on top of a tack weld helps to ensure full penetration and eliminate the potential for lack of fusion between the weld and base metal.

Question 20

​What is another name for the cover pass?

Accepted Answer

Another name for the cover pass is cap.

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

What is the purpose of the filler passes?

The hot pass can be made ____; however, it is more difficult to keep good fusion using the technique.

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

Which of the following is not something that a hot pass can do?

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

Why do you need to be careful not to gouge the pipe bevel surface?

What can be used to force the ends of a pipe in alignment?

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

What is the bevel angle for the end of pipe?

How should the weld progress if the root opening is wider than normal?

Which step is critical when making a code quality weld?

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

Arc strikes outside of the weld groove are _____________.

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

The filler passes should be stopped when the surface is approximately ____________ below the pipe's outer surface.

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

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

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

Why is the root pass weld started on top of a tack weld?

What is another name for the cover pass?