Question 1

Describe the two recommended procedures to be observed for arc welding tool steel.

Accepted Answer

In arc welding tool steels, one of the f

Question 2

In the steel classification system, the last two digits refer to ____.

Accepted Answer

A)  the basic type of steel 
B)  the range of carbon content 
C)  the melting point 
D)  the basic alloy group 
A)  the basic type of steel 
B)  the range of carbon content 
C)  the melting point 
D)  the basic alloy group

Question 3

Steel is classified according to ____.

Accepted Answer

A)  melting point 
B)  ductility 
C)  basic chemical composition 
D)  hardness 
A)  melting point 
B)  ductility 
C)  basic chemical composition 
D)  hardness

Question 4

If the chromium-nickel content of a stainless steel is referred to as 25-12, then it contains ____.

Accepted Answer

A)  25 percent nickel and 12 percent chromium 
B)  75 percent chromium and 8 percent nickel 
C)  25 percent chromium and 12 percent nickel 
D)  75 percent nickel and 8 percent chromium 
A)  25 percent nickel and 12 percent chromium 
B)  75 percent chromium and 8 percent nickel 
C)  25 percent chromium and 12 percent nickel 
D)  75 percent nickel and 8 percent chromium

Question 5

​What type of flux is required to gas weld cast iron?

Accepted Answer

A)  ​C-flux 
B)  ​Acid flux 
C)  ​High temperature cast iron welding flux. 
D)  ​No flux is required to gas weld cast iron. 
A)  ​C-flux 
B)  ​Acid flux 
C)  ​High temperature cast iron welding flux. 
D)  ​No flux is required to gas weld cast iron.

Question 6

Summarize the uses of chromium-molybdenum steel, including applications it is used for, processes used to weld it, and its tensile strength.

Accepted Answer

Chromium-molybdenum steel is used for hi

Question 7

Explain the meaning of the numbers in the SAE and AISI classification systems.

Accepted Answer

The first two digits together indicate t

Question 8

​Why must some castings be repaired without pre- and post-heating?

Accepted Answer

A)  ​They are large or have to be repaired in place. 
B)  ​They are made of a type of cast iron that cannot be preheated because it is too soft. 
C)  ​It would damage the paint job on the part. 
D)  ​Cast iron repairs always require pre- and post-heating. 
A)  ​They are large or have to be repaired in place. 
B)  ​They are made of a type of cast iron that cannot be preheated because it is too soft. 
C)  ​It would damage the paint job on the part. 
D)  ​Cast iron repairs always require pre- and post-heating.

Question 9

____ stainless steels are used in applications requiring both wear resistance and corrosion resistance, such as surgical knives and razor blades.

Accepted Answer

A)  Ferritic 
B)  Austenitic 
C)  Martensitic 
D)  Precipitation hardening 
A)  Ferritic 
B)  Austenitic 
C)  Martensitic 
D)  Precipitation hardening

Question 10

High carbon steels usually have a carbon content of ____ %.

Accepted Answer

A)  0.30 
B)  0.30 to 0.50 
C)  0.50 to 0.90 
D)  30 to 90 
A)  0.30 
B)  0.30 to 0.50 
C)  0.50 to 0.90 
D)  30 to 90

Exam 27: Weldability of Metals

Describe the two recommended procedures to be observed for arc welding tool steel.

In the steel classification system, the last two digits refer to ____.

Steel is classified according to ____.

If the chromium-nickel content of a stainless steel is referred to as 25-12, then it contains ____.

​What type of flux is required to gas weld cast iron?

Summarize the uses of chromium-molybdenum steel, including applications it is used for, processes used to weld it, and its tensile strength.

Explain the meaning of the numbers in the SAE and AISI classification systems.

​Why must some castings be repaired without pre- and post-heating?

____ stainless steels are used in applications requiring both wear resistance and corrosion resistance, such as surgical knives and razor blades.

High carbon steels usually have a carbon content of ____ %.

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

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 type of flux is required to gas weld cast iron?

Why must some castings be repaired without pre- and post-heating?