Question 1

​What is an advantage of bending the welding rod to the radius of the pipe?

Accepted Answer

A)  ​It makes the rod easier to hold and less likely to slip in the welder's gloved hand. 
B)  ​That way when the weld is stopped it is easier to see which end of the rod might be hot. 
C)  ​It allows the rod to be held at a closer angle to the pipe to minimize contamination. 
D)  ​It covers the joint to help to prevent incomplete fusion caused by the loss of the backing gas. 
A)  ​It makes the rod easier to hold and less likely to slip in the welder's gloved hand. 
B)  ​That way when the weld is stopped it is easier to see which end of the rod might be hot. 
C)  ​It allows the rod to be held at a closer angle to the pipe to minimize contamination. 
D)  ​It covers the joint to help to prevent incomplete fusion caused by the loss of the backing gas. C

Question 2

​Which of the following is not a way of cleaning the band around the end of a pipe for welding?

Accepted Answer

A)  ​grinding 
B)  ​brushing 
C)  ​filing 
D)  ​soap and water 
A)  ​grinding 
B)  ​brushing 
C)  ​filing 
D)  ​soap and water D

Question 3

____ help to reduce the number of repairs or rejections when welding under less than ideal conditions, such as in a limited space.

Accepted Answer

A)  Consumable inserts 
B)  Tack welds 
C)  Backing strips 
D)  Preplaced filler rods 
A)  Consumable inserts 
B)  Tack welds 
C)  Backing strips 
D)  Preplaced filler rods A

Question 4

A concave root surface is sometimes known as ____________________.

Accepted Answer

The answer of A concave root surface is sometimes known...

Question 5

Excessive root reinforcement can cause reduced material flow, result in clogged pipes, or form ____________________ that will result in premature weld failure.

Accepted Answer

The answer of Excessive root reinforcement can cause reduced material...

Question 6

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

Accepted Answer

A)  ​To make it easier to see as you weld across the tack welds. 
B)  ​It prevents the shielding gas from becoming turbulent and losing good gas coverage. 
C)  ​It stops porosity. 
D)  ​To make it easier to have 100% penetration at the ending and beginning of the root weld. 
A)  ​To make it easier to see as you weld across the tack welds. 
B)  ​It prevents the shielding gas from becoming turbulent and losing good gas coverage. 
C)  ​It stops porosity. 
D)  ​To make it easier to have 100% penetration at the ending and beginning of the root weld.

Question 7

____ result(s) from excessive heat, temperature, and filler metal during welding.

Accepted Answer

A)  Porosity 
B)  Grapes 
C)  Suck back 
D)  Incomplete penetration 
A)  Porosity 
B)  Grapes 
C)  Suck back 
D)  Incomplete penetration

Question 8

The ____________________ of the root surface results in reduced thickness of the weld.

Accepted Answer

The answer of The ____________________ of the root surface results...

Question 9

____ can result in premature cracking or failure of the weld at a load well under its expected strength.

Accepted Answer

A)  Porosity 
B)  Contamination 
C)  Stress points 
D)  Oxidization 
A)  Porosity 
B)  Contamination 
C)  Stress points 
D)  Oxidization

Question 10

Explain how to compute the flow time necessary for backing gas to purge a pipe of air.

Accepted Answer

First, estimate the interior volume of t

Question 11

​What might affect the selection of the type of groove preparation on the end of a pipe?

Accepted Answer

A)  ​pipe material 
B)  ​pipe application 
C)  ​pipe thickness 
D)  ​All of the above 
A)  ​pipe material 
B)  ​pipe application 
C)  ​pipe thickness 
D)  ​All of the above

Question 12

Failure to remove the root edge may result in ____.

Accepted Answer

A)  porosity 
B)  poor penetration 
C)  a concave root surface 
D)  grapes 
A)  porosity 
B)  poor penetration 
C)  a concave root surface 
D)  grapes

Question 13

Whether the root of the weld has excessive root reinforcement can be determined by ____.

Accepted Answer

A)  visual inspection 
B)  x-ray testing 
C)  cutting a cross-section of the weld 
D)  destructive testing 
A)  visual inspection 
B)  x-ray testing 
C)  cutting a cross-section of the weld 
D)  destructive testing

Question 14

Incomplete fusion can be detected by ____.

Accepted Answer

A)  an x-ray 
B)  a root bend test 
C)  visual inspection 
D)  cutting a cross-section of the weld 
A)  an x-ray 
B)  a root bend test 
C)  visual inspection 
D)  cutting a cross-section of the weld

Question 15

​When would GTA welding be a good choice for making pipe welds?

Accepted Answer

A)  ​When the joint must have a high degree of integrity. 
B)  ​If the joint has too narrow of a root gap. 
C)  ​If the joint has too wide of a root gap. 
D)  ​For 6G pipe joints and when pipe flanges are being installed at the ends of pipe runs. 
A)  ​When the joint must have a high degree of integrity. 
B)  ​If the joint has too narrow of a root gap. 
C)  ​If the joint has too wide of a root gap. 
D)  ​For 6G pipe joints and when pipe flanges are being installed at the ends of pipe runs.

Question 16

The amount of concavity in a root surface can be given as ____.

Accepted Answer

A)  a percentage of the total weld width 
B)  the smallest number and smallest size of spots per inch of weld 
C)  a percentage of the effective throat 
D)  a percentage of the width at the narrowest point 
A)  a percentage of the total weld width 
B)  the smallest number and smallest size of spots per inch of weld 
C)  a percentage of the effective throat 
D)  a percentage of the width at the narrowest point

Question 17

Describe the specifications of the stringer bead used to cap the weld in a cover pass.

Accepted Answer

The stringer bead can be continued to ca

Question 18

​What does making deep penetration on the filler passes do?

Accepted Answer

A)  ​It makes sure that there is complete fusion between all of the weld passes. 
B)  ​It eliminates overlap along the sides of the weld. 
C)  ​It can cause burnthrough. 
D)  ​It subjects the pipe to more heat than needed. 
A)  ​It makes sure that there is complete fusion between all of the weld passes. 
B)  ​It eliminates overlap along the sides of the weld. 
C)  ​It can cause burnthrough. 
D)  ​It subjects the pipe to more heat than needed.

Question 19

Most codes and standards for GTA pipe welding require no more than ____ inch of root reinforcement.

Accepted Answer

A)  1/16 
B)  3/32 
C)  1/8 
D)  1/4 
A)  1/16 
B)  3/32 
C)  1/8 
D)  1/4

Question 20

Which of the following is a cause of contamination of the back side of the molten weld pool?

Accepted Answer

A)  Failure to remove the root edge 
B)  Insufficient heat, insufficient filler metal 
C)  Overheating, poor cleaning procedures 
D)  Excessive root reinforcement 
A)  Failure to remove the root edge 
B)  Insufficient heat, insufficient filler metal 
C)  Overheating, poor cleaning procedures 
D)  Excessive root reinforcement

Exam 18: Gas Tungsten Arc Welding of Pipe

​What is an advantage of bending the welding rod to the radius of the pipe?

​Which of the following is not a way of cleaning the band around the end of a pipe for welding?

____ help to reduce the number of repairs or rejections when welding under less than ideal conditions, such as in a limited space.

A concave root surface is sometimes known as ____________________.

Excessive root reinforcement can cause reduced material flow, result in clogged pipes, or form ____________________ that will result in premature weld failure.

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

____ result(s) from excessive heat, temperature, and filler metal during welding.

The ____________________ of the root surface results in reduced thickness of the weld.

____ can result in premature cracking or failure of the weld at a load well under its expected strength.

Explain how to compute the flow time necessary for backing gas to purge a pipe of air.

​What might affect the selection of the type of groove preparation on the end of a pipe?

Failure to remove the root edge may result in ____.

Whether the root of the weld has excessive root reinforcement can be determined by ____.

Incomplete fusion can be detected by ____.

​When would GTA welding be a good choice for making pipe welds?

The amount of concavity in a root surface can be given as ____.

Describe the specifications of the stringer bead used to cap the weld in a cover pass.

​What does making deep penetration on the filler passes do?

Most codes and standards for GTA pipe welding require no more than ____ inch of root reinforcement.

Which of the following is a cause of contamination of the back side of the molten weld pool?

Introduction to Welding

Safety in Welding

Shielded Metal Arc Equipment, Setup, and Operation

Shielded Metal Arc Welding of Plate

Shielded Metal Arc Welding of Pipe

Shielded Metal Arc Welding Aws Sense Certification

Flame Cutting

Plasma Arc Cutting

Related Cutting Processes

Gas Metal Arc Welding Equipment, Setup, and Operation

Gas Metal Arc Welding

Flux Cored Arc Welding Equipment, Setup, and Operation

Flux Cored Arc Welding

Gas Metal Arc and Flux Cored Arc Welding of Pipe

Gas Metal Arc and Flux Cored Arc Welding Aws Sense Certification

Gas Tungsten Arc Welding Equipment, Setup, Operation, and Filler Metals

Gas Tungsten Arc Welding of Plate

Gas Tungsten Arc Welding Plate and Pipe Aws Sense Certification

Shop Math and Weld Cost

Reading Technical Drawings

Welding Joint Design and Welding Symbols

Fabricating Techniques and Practices

Welding Codes and Standards

Testing and Inspection of Welds

Welding Metallurgy

Weldability of Metals

Filler Metal Selection

Welding Automation and Robotics

Other Welding Processes

Oxyfuel Welding and Cutting Equipment, Setup, and Operation

Oxyacetylene Welding

Brazing, Braze Welding, and Soldering

Filters

What is an advantage of bending the welding rod to the radius of the pipe?

Which of the following is not a way of cleaning the band around the end of a pipe for welding?

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

What might affect the selection of the type of groove preparation on the end of a pipe?

When would GTA welding be a good choice for making pipe welds?

What does making deep penetration on the filler passes do?