Question 1

Describe how the correct diameter of filler metal will help control the weld bead width, buildup, and penetration.

Accepted Answer

Selecting the proper size or correct diameter of filler metal will help control the weld bead width, buildup, and penetration.A large diameter filler rod can be used as a heat sink (something to draw off excessive heat) to keep the molten weld pool narrow, with little penetration and high buildup.As the diameter of the filler wire is decreased, the heat-absorbing effect decreases, and the molten weld pool becomes wider, with deeper penetration and reduced buildup.On thin metal, it may be necessary to use a large diameter filler rod to control burn-through.On thick metal, a small diameter filler rod may be used to increase penetration.

Question 2

​What would happen if the secondary flame is suddenly moved away from the molten weld pool?

Accepted Answer

A)  ​The pool will cool off. 
B)  ​The molten pool will not have any change because it takes a while for it to cool and become solid. 
C)  ​The torch flame may go out from the sudden movement. 
D)  ​The molten pool would throw off a large number of sparks. 
A)  ​The pool will cool off. 
B)  ​The molten pool will not have any change because it takes a while for it to cool and become solid. 
C)  ​The torch flame may go out from the sudden movement. 
D)  ​The molten pool would throw off a large number of sparks. D

Question 3

Which of the following is true of horizontal welds?

Accepted Answer

A)  The weave pattern required for a horizontal weld is similar to other positions. 
B)  The sheet should not be tipped back at a 45 degree angle for stringer beads. 
C)  They must rely on some part of the weld bead to support the molten weld pool. 
D)  Care must be taken not to allow a shelf to build up under the molten weld pool. 
A)  The weave pattern required for a horizontal weld is similar to other positions. 
B)  The sheet should not be tipped back at a 45 degree angle for stringer beads. 
C)  They must rely on some part of the weld bead to support the molten weld pool. 
D)  Care must be taken not to allow a shelf to build up under the molten weld pool. C

Question 4

On thick metal, a ____ diameter filler rod may be used to ____.

Accepted Answer

A)  small, decrease penetration 
B)  small, increase penetration 
C)  large, increase penetration 
D)  large, decrease penetration 
A)  small, decrease penetration 
B)  small, increase penetration 
C)  large, increase penetration 
D)  large, decrease penetration

Question 5

Which of the following is true of welding mild steel pipe and tubing?

Accepted Answer

A)  They cannot be gas welded. 
B)  The welding process for pipe and tubing is different. 
C)  Even thin-walled material requires grooved preparation. 
D)  Gas welding is seldom used to manufacture piping systems. 
A)  They cannot be gas welded. 
B)  The welding process for pipe and tubing is different. 
C)  Even thin-walled material requires grooved preparation. 
D)  Gas welding is seldom used to manufacture piping systems.

Question 6

When welding in the ____________________ position, it is important to wear the proper personal protection, including leather gloves, leather sleeves, a leather apron, and a cap.

Accepted Answer

The answer of When welding in the ____________________ position, it...

Question 7

The distance between the inner cone and the metal ideally should be ____.

Accepted Answer

A)  1/16 to 1/8 in. 
B)  1/8 to 1/4 in. 
C)  1/4 to 3/8 in. 
D)  3/8 to 5/8 in. 
A)  1/16 to 1/8 in. 
B)  1/8 to 1/4 in. 
C)  1/4 to 3/8 in. 
D)  3/8 to 5/8 in.

Question 8

The ____ has a right and a left side.

Accepted Answer

A)  vertical tee joint 
B)  flat butt joint 
C)  vertical lap joint 
D)  flat lap joint 
A)  vertical tee joint 
B)  flat butt joint 
C)  vertical lap joint 
D)  flat lap joint

Question 9

Which of the following is true of the vertical weld?

Accepted Answer

A)  It is the most common out-of-position weld. 
B)  The more vertical the sheet, the easier the weld is to make. 
C)  Welding on a sheet at a 45 degree angle requires as much skill as a 90 degree angle. 
D)  The speed of the manipulation is faster when the sheet is at 45 degree angle. 
A)  It is the most common out-of-position weld. 
B)  The more vertical the sheet, the easier the weld is to make. 
C)  Welding on a sheet at a 45 degree angle requires as much skill as a 90 degree angle. 
D)  The speed of the manipulation is faster when the sheet is at 45 degree angle.

Question 10

Small molten weld pools are ____ large ones to drip.

Accepted Answer

A)  less likely than 
B)  as likely as 
C)  more likely than 
D)  much more likely than 
A)  less likely than 
B)  as likely as 
C)  more likely than 
D)  much more likely than

Question 11

​Which pipe welding position has the pipe held fixed horizontally?

Accepted Answer

A)  ​1G 
B)  ​2G 
C)  ​5G 
D)  ​6G 
A)  ​1G 
B)  ​2G 
C)  ​5G 
D)  ​6G

Question 12

​What gas from the flame can protect the molten weld metal from oxidizing?

Accepted Answer

A)  ​C2H2 
B)  ​O2 
C)  ​CO2 
D)  ​NO2 
A)  ​C2H2 
B)  ​O2 
C)  ​CO2 
D)  ​NO2

Question 13

The rhythm of moving the torch helps ____.

Accepted Answer

A)  prevent burn-through 
B)  flashing 
C)  make the bead uniform 
D)  protect the molten metal with the outer flame envelope 
A)  prevent burn-through 
B)  flashing 
C)  make the bead uniform 
D)  protect the molten metal with the outer flame envelope

Question 14

Which of the following is true of the lap joint?

Accepted Answer

A)  The filler rod should be added to the bottom sheet. 
B)  Heat is not distributed uniformly in the lap joint. 
C)  If the rod is added directly into the notch, the weld strength will be affected. 
D)  The flame must be directed at the top sheet and away from the bottom sheet. 
A)  The filler rod should be added to the bottom sheet. 
B)  Heat is not distributed uniformly in the lap joint. 
C)  If the rod is added directly into the notch, the weld strength will be affected. 
D)  The flame must be directed at the top sheet and away from the bottom sheet.

Question 15

Whenever a weld is performed in a position other than flat, it is said to be ____________________.

Accepted Answer

out-of-pos

Question 16

Often the number of sparks in the air increases just before a ____ takes place.

Accepted Answer

A)  backfire 
B)  weld crater cracking 
C)  burn-through 
D)  flashback 
A)  backfire 
B)  weld crater cracking 
C)  burn-through 
D)  flashback

Question 17

Which of the following is true of the tee joint?

Accepted Answer

A)  The tee joint does not suffer from uneven heating as the lap joint does. 
B)  The tee joint is easier than the lap joint. 
C)  The angle of the torch should be away from the direction of weld travel. 
D)  A large percentage of the welding heat is reflected back on the torch. 
A)  The tee joint does not suffer from uneven heating as the lap joint does. 
B)  The tee joint is easier than the lap joint. 
C)  The angle of the torch should be away from the direction of weld travel. 
D)  A large percentage of the welding heat is reflected back on the torch.

Question 18

​Why should the end of the welding rod be kept inside the protective envelope of the flame?

Accepted Answer

A)  ​To keep the hot end from oxidizing if it is exposed to the air. 
B)  ​To keep it hot so it will melt into the weld pool faster. 
C)  ​It is easier to see there, and you are less likely to touch it to your hand, arm, or leg. 
D)  ​You can add the rod quicker if it is kept close to the weld pool. 
A)  ​To keep the hot end from oxidizing if it is exposed to the air. 
B)  ​To keep it hot so it will melt into the weld pool faster. 
C)  ​It is easier to see there, and you are less likely to touch it to your hand, arm, or leg. 
D)  ​You can add the rod quicker if it is kept close to the weld pool.

Question 19

In a horizontal stringer bead, the weld bead will tend to sag downward, and as a result there may be a(n) ____ on the bottom edge.

Accepted Answer

A)  undercut 
B)  overlap 
C)  crack 
D)  wormhole 
A)  undercut 
B)  overlap 
C)  crack 
D)  wormhole

Question 20

Which of the following is true of mild steel welds?

Accepted Answer

A)  The primary flame shields the molten weld pool. 
B)  Carbon dioxide that is formed reacts with the molten weld pool. 
C)  It is possible to make welds with 100% integrity. 
D)  The carbon dioxide draws the surrounding atmosphere into the weld. 
A)  The primary flame shields the molten weld pool. 
B)  Carbon dioxide that is formed reacts with the molten weld pool. 
C)  It is possible to make welds with 100% integrity. 
D)  The carbon dioxide draws the surrounding atmosphere into the weld.

Exam 32: Oxyacetylene Welding

Describe how the correct diameter of filler metal will help control the weld bead width, buildup, and penetration.

​What would happen if the secondary flame is suddenly moved away from the molten weld pool?

Which of the following is true of horizontal welds?

On thick metal, a ____ diameter filler rod may be used to ____.

Which of the following is true of welding mild steel pipe and tubing?

When welding in the ____________________ position, it is important to wear the proper personal protection, including leather gloves, leather sleeves, a leather apron, and a cap.

The distance between the inner cone and the metal ideally should be ____.

The ____ has a right and a left side.

Which of the following is true of the vertical weld?

Small molten weld pools are ____ large ones to drip.

​Which pipe welding position has the pipe held fixed horizontally?

​What gas from the flame can protect the molten weld metal from oxidizing?

The rhythm of moving the torch helps ____.

Which of the following is true of the lap joint?

Whenever a weld is performed in a position other than flat, it is said to be ____________________.

Often the number of sparks in the air increases just before a ____ takes place.

Which of the following is true of the tee joint?

​Why should the end of the welding rod be kept inside the protective envelope of the flame?

In a horizontal stringer bead, the weld bead will tend to sag downward, and as a result there may be a(n) ____ on the bottom edge.

Which of the following is true of mild steel welds?

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 of Pipe

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

Brazing, Braze Welding, and Soldering

Filters

What would happen if the secondary flame is suddenly moved away from the molten weld pool?

On thick metal, a diameter filler rod may be used to .

Which pipe welding position has the pipe held fixed horizontally?

What gas from the flame can protect the molten weld metal from oxidizing?

Why should the end of the welding rod be kept inside the protective envelope of the flame?