Question 1

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 2

Building up the molten weld pool before it is ended will help prevent crater ____________________.

Accepted Answer

cracking

Question 3

The rhythm of moving the torch helps ____.

Accepted Answer

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

Question 4

____________________ filler rods for gas welding are small, round, or square iron castings.

Accepted Answer

The answer of ____________________ filler rods for gas welding are...

Question 5

A change in the number of sparks given off by the weld as it progresses can be used as an indication of changes in the ____.

Accepted Answer

A)  weld temperature 
B)  temperature of the atmosphere 
C)  torch angle 
D)  flame size 
A)  weld temperature 
B)  temperature of the atmosphere 
C)  torch angle 
D)  flame size

Question 6

Some joints, such as the lap joint, may never need 100% ____; however, they do need 100% ____.

Accepted Answer

A)  fusion, penetration 
B)  penetration, accuracy 
C)  depth, accuracy 
D)  penetration, fusion 
A)  fusion, penetration 
B)  penetration, accuracy 
C)  depth, accuracy 
D)  penetration, fusion

Question 7

Explain how to make a flat butt joint.

Accepted Answer

To make a flat butt joint, place two cle

Question 8

Welding rod size and ____________________ can be used to control the weld bead characteristics.

Accepted Answer

The answer of Welding rod size and ____________________ can be...

Question 9

____ is the most widely used fuel gas for oxyfuel processes.

Accepted Answer

A)  Oxygen 
B)  Hydrogen 
C)  Acetylene 
D)  Argon 
A)  Oxygen 
B)  Hydrogen 
C)  Acetylene 
D)  Argon

Question 10

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 11

In a vertical weld, the ____ will constantly be solidifying, forming a new shelf to support the molten weld pool.

Accepted Answer

A)  shelf 
B)  trailing edge 
C)  leading edge 
D)  molten weld pool 
A)  shelf 
B)  trailing edge 
C)  leading edge 
D)  molten weld pool

Question 12

____________________ filler metals are welding rods that are mainly iron.

Accepted Answer

The answer of ____________________ filler metals are welding rods that...

Question 13

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

Accepted Answer

The answer of Whenever a weld is performed in a...

Question 14

Why should the filler rod be added to the top sheet in a lap joint?

Accepted Answer

The filler rod should be added to the to

Question 15

By controlling the torch flame carefully it is possible to ____________.

Accepted Answer

A)  make a weld bead vertically on a horizontal plate. 
B)  make a weld bead horizontally above the horizontal plate. 
C)  accurately control the weld bead in out-of-position welds. 
D)  All of the above 
A)  make a weld bead vertically on a horizontal plate. 
B)  make a weld bead horizontally above the horizontal plate. 
C)  accurately control the weld bead in out-of-position welds. 
D)  All of the above

Question 16

The ideal angle for the welding torch is ____.

Accepted Answer

A)  15 ° 
B)  30 ° 
C)  45 ° 
D)  60 ° 
A)  15 ° 
B)  30 ° 
C)  45 ° 
D)  60 °

Question 17

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 18

When mixing oxygen and fuel gas, one method uses equal or balanced pressure and mixes gases in a(n) ____.

Accepted Answer

A)  mixing chamber 
B)  injector chamber 
C)  fuel injector 
D)  injector mixer 
A)  mixing chamber 
B)  injector chamber 
C)  fuel injector 
D)  injector mixer

Question 19

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 ° 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 ° 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 20

The injector allows oxygen at the higher pressure to draw the fuel gas into the chamber even when the fuel gas pressure is as low as ____.

Accepted Answer

A)  6 psig 
B)  6 oz/inch2 
C)  10 psig 
D)  10 oz/inch2 
A)  6 psig 
B)  6 oz/inch2 
C)  10 psig 
D)  10 oz/inch2

Exam 31: Oxyfuel Welding Equipment, Setup, and Operation

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

Building up the molten weld pool before it is ended will help prevent crater ____________________.

The rhythm of moving the torch helps ____.

____________________ filler rods for gas welding are small, round, or square iron castings.

A change in the number of sparks given off by the weld as it progresses can be used as an indication of changes in the ____.

Some joints, such as the lap joint, may never need 100% ____; however, they do need 100% ____.

Explain how to make a flat butt joint.

Welding rod size and ____________________ can be used to control the weld bead characteristics.

____ is the most widely used fuel gas for oxyfuel processes.

Which of the following is true of the tee joint?

In a vertical weld, the ____ will constantly be solidifying, forming a new shelf to support the molten weld pool.

____________________ filler metals are welding rods that are mainly iron.

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

Why should the filler rod be added to the top sheet in a lap joint?

By controlling the torch flame carefully it is possible to ____________.

The ideal angle for the welding torch is ____.

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

When mixing oxygen and fuel gas, one method uses equal or balanced pressure and mixes gases in a(n) ____.

Which of the following is true of the vertical weld?

The injector allows oxygen at the higher pressure to draw the fuel gas into the chamber even when the fuel gas pressure is as low as ____.

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

Some joints, such as the lap joint, may never need 100% ; however, they do need 100% .