Question 1

The ____________________ must be protected by the secondary flame to prevent the atmosphere from contaminating the metal.

Accepted Answer

The answer of The ____________________ must be protected by the...

Question 2

Which of the following is true of making a proper stop?

Accepted Answer

A)  You should slightly taper down the molten weld pool by flashing the torch off. 
B)  Flashing the torch off prevents the molten weld pool from solidifying. 
C)  If the flame is removed too late from the molten weld pool, it will rapidly oxidize. 
D)  Pockets of oxides add strength to the weld. 
A)  You should slightly taper down the molten weld pool by flashing the torch off. 
B)  Flashing the torch off prevents the molten weld pool from solidifying. 
C)  If the flame is removed too late from the molten weld pool, it will rapidly oxidize. 
D)  Pockets of oxides add strength to the weld.

Question 3

A(n) ____________________ torch must be used if a low-pressure acetylene generator or low-pressure residential natural gas is used as a fuel-gas supply.

Accepted Answer

The answer of A(n) ____________________ torch must be used if...

Question 4

Which of the following is true about overhead welding?

Accepted Answer

A)  The height of the sheet does not affect your progress. 
B)  The direction that you choose to weld is a matter of personal preference. 
C)  The height of the sheet does not affect your skill. 
D)  Welders should always stand when welding in the overhead position. 
A)  The height of the sheet does not affect your progress. 
B)  The direction that you choose to weld is a matter of personal preference. 
C)  The height of the sheet does not affect your skill. 
D)  Welders should always stand when welding in the overhead position.

Question 5

The oxygen and ____________________ flame is the only 100% nonpolluting fuel-gas flame.

Accepted Answer

The answer of The oxygen and ____________________ flame is the...

Question 6

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 7

____________________ the torch off allows the molten weld pool to cool by moving the hotter inner cone away from the molten weld pool itself.

Accepted Answer

The answer of ____________________ the torch off allows the molten...

Question 8

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.

Question 9

During the early ____, the oxyacetylene flame became more popular as the primary means of welding.

Accepted Answer

A)  1800s 
B)  1900s 
C)  1980s 
D)  2000s 
A)  1800s 
B)  1900s 
C)  1980s 
D)  2000s

Question 10

____________________ is the depth into the base metal that the weld fusion or melting extends from the surface, excluding any reinforcement.

Accepted Answer

The answer of ____________________ is the depth into the base...

Question 11

What are the properties of class RG65 welding rods?

Accepted Answer

Class RG65 welding rods are low-alloy, h

Question 12

Why would you not reduce the flame size below its correct setting if the torch flame is too large for the job?

Accepted Answer

A)  Lowering the flame can result in the tip overheating. 
B)  The flame would go out so you would have to relight the torch. 
C)  Because lowering the gas flow will not reduce the flame heat. 
D)  You would lower the flame so you would not burn through the metal due to the excessively large flame. 
A)  Lowering the flame can result in the tip overheating. 
B)  The flame would go out so you would have to relight the torch. 
C)  Because lowering the gas flow will not reduce the flame heat. 
D)  You would lower the flame so you would not burn through the metal due to the excessively large flame.

Question 13

With the ____ weld, the molten weld pool is held to the sheet by surface tension.

Accepted Answer

A)  overhead 
B)  vertical 
C)  flat 
D)  horizontal 
A)  overhead 
B)  vertical 
C)  flat 
D)  horizontal

Question 14

In a lap joint, heat is conducted away faster in the ____________________ plate.

Accepted Answer

The answer of In a lap joint, heat is conducted...

Question 15

____ of a tee joint enables a larger weld to be made than either the butt or lap joint.

Accepted Answer

A)  Uniformity in the reinforcement 
B)  Root penetration 
C)  Surface tension in the molten weld pool 
D)  Torch angle in the groove 
A)  Uniformity in the reinforcement 
B)  Root penetration 
C)  Surface tension in the molten weld pool 
D)  Torch angle in the groove

Question 16

The ____ has a right side 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 17

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 18

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 19

What effect on the weld pool would speeding up or slowing down have?

Accepted Answer

A)  The weld will move to the right and to the left. 
B)  It has no effect on the weld pool, just on how the filler metal is added. 
C)  It will make the weld pool larger or smaller. 
D)  None of the above 
A)  The weld will move to the right and to the left. 
B)  It has no effect on the weld pool, just on how the filler metal is added. 
C)  It will make the weld pool larger or smaller. 
D)  None of the above

Question 20

Suppose you want to practice welding on tubing, but none is available. What can you do?

Accepted Answer

If you want to practice on tubing, but i

Exam 31: Oxyfuel Welding Equipment, Setup, and Operation

The ____________________ must be protected by the secondary flame to prevent the atmosphere from contaminating the metal.

Which of the following is true of making a proper stop?

A(n) ____________________ torch must be used if a low-pressure acetylene generator or low-pressure residential natural gas is used as a fuel-gas supply.

Which of the following is true about overhead welding?

The oxygen and ____________________ flame is the only 100% nonpolluting fuel-gas flame.

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

____________________ the torch off allows the molten weld pool to cool by moving the hotter inner cone away from the molten weld pool itself.

Which of the following is true of mild steel welds?

During the early ____, the oxyacetylene flame became more popular as the primary means of welding.

____________________ is the depth into the base metal that the weld fusion or melting extends from the surface, excluding any reinforcement.

What are the properties of class RG65 welding rods?

Why would you not reduce the flame size below its correct setting if the torch flame is too large for the job?

With the ____ weld, the molten weld pool is held to the sheet by surface tension.

In a lap joint, heat is conducted away faster in the ____________________ plate.

____ of a tee joint enables a larger weld to be made than either the butt or lap joint.

The ____ has a right side and a left side.

Small molten weld pools are ____ large ones to drip.

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

What effect on the weld pool would speeding up or slowing down have?

Suppose you want to practice welding on tubing, but none is available. What can you do?

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 Equipment, Setup, and Operation

Plasma Arc Cutting Equipment, Setup, and Operation

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, and Operation

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

Welding Metallurgy

Weldability of Metals

Filler Metal Selection

Welding Automation and Robotics

Other Welding Processes

Oxyacetylene Welding and Brazing, Braze Welding, and Soldering

Filters

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