Question 1

____ is the nonmagnetic form of iron and has the power to dissolve carbon and alloying elements.

Accepted Answer

A)   Ferrite
B)   Cementite
C)   Pearlite
D)   AusteniteE) A) and C)
F) B) and C)

Question 2

What effect does forging have on a rolled steel's grain structure?

Accepted Answer

A)   It causes the vertical grain structure to deform into a horizontal layer of softer iron carbide.
B)   It creates a magnetic field around the metal that adds strength.
C)   It forms a strong hard layer of fine grain structure around the core.
D)   It causes the core of the plate to create a smoother softer form of iron.E) A) and D)
F) All of the above

Question 3

____ is the property that allows a metal to withstand forces, sudden shock, or bends without fracturing.

Accepted Answer

A)   Hardness
B)   Brittleness
C)   Toughness
D)   StrengthE) A) and D)
F) All of the above

Question 4

While a metal is in the liquid-solid phase, it is ____.

Accepted Answer

A)   very weak
B)   very strong
C)   very tough
D)   very elasticE) C) and D)
F) All of the above

Question 5

The smallest identifiable group of atoms is the ____________________.

Accepted Answer

The answer of The smallest identifiable group of atoms is...

Question 6

Explained why tempered martensite is very strong and tough.

Accepted Answer

When martensite is tempered, some of the...

Question 7

____________________ is the hardest of the transformation products of austenite.

Accepted Answer

The answer of ____________________ is the hardest of the transformation...

Question 8

The fundamental building blocks of all metals are atoms arranged in very precise three-dimensional patterns called ____________________.

Accepted Answer

The answer of The fundamental building blocks of all metals...

Question 9

The M. temperature for carbon steels is about ____.

Accepted Answer

A)   200 ° F to 400 ° F
B)   400 ° F to 600 ° F
C)   600 ° F to 800 ° F
D)   800 ° F to 1000 ° FE) None of the above
F) B) and C)

Question 10

A cold-worked structure can be annealed by heating the metal above the ____ temperature.

Accepted Answer

A)   M.
B)   critical
C)   melting
D)   recrystallizationE) B) and C)
F) None of the above

Question 11

____ strength is the property of a material to resist being crushed.

Accepted Answer

A)   Tensile
B)   Compressive
C)   Shear
D)   TorsionalE) A) and B)
F) A) and C)

Question 12

Define annealing.

Accepted Answer

Annealing, frequently referred to as ful...

Question 13

____ is defined as the maximum load, per unit of area, to which a material will respond with a deformation directly proportional to the load.

Accepted Answer

A)   Elastic limit
B)   Elasticity
C)   Tensile strength
D)   Yield limitE) B) and C)
F) C) and D)

Question 14

Pure iron forms the body-centered cubic (BCC)  crystal below a temperature of ____ Fahrenheit.

Accepted Answer

A)   1000 °
B)   1200 °
C)   1527 °
D)   1675 °E) B) and C)
F) C) and D)

Question 15

____________________ is the amount of thermal energy in matter.

Accepted Answer

The answer of ____________________ is the amount of thermal energy...

Question 16

How is a metal's hardness reduced?

Accepted Answer

A)   Annealing
B)   Forging
C)   Re-melting
D)   Using a grinder to remove the hard surfaceE) B) and D)
F) None of the above

Question 17

____________________ is the process of reheating a part that has been hardened through heating and quenched.

Accepted Answer

The answer of ____________________ is the process of reheating a...

Question 18

What is the difference between sensible and latent heat?

Accepted Answer

There are two forms of heat. One is call...

Question 19

____ may be defined as resistance to penetration.

Accepted Answer

A)   Hardness
B)   Brittleness
C)   Toughness
D)   StrengthE) None of the above
F) A) and B)

Question 20

____ is magnetic and has very slight solid solubility, less than 0.02%, of carbon.

Accepted Answer

A)   Ferrite
B)   Cementite
C)   Pearlite
D)   AusteniteE) A) and B)
F) C) and D)

Exam 26: Welding Metallurgy

____________________ is the hardest of the transformation products of austenite.

Correct AnswerverifiedShow Answer

Pure iron forms the body-centered cubic (BCC) crystal below a temperature of ____ Fahrenheit.

Correct AnswerverifiedShow Answer

The M. temperature for carbon steels is about ____.

Correct AnswerverifiedShow Answer

What is the difference between sensible and latent heat?

Correct AnswerverifiedThere are two forms of heat. One is call...View AnswerShow Answer

____________________ is the process of reheating a part that has been hardened through heating and quenched.

Correct AnswerverifiedShow Answer

Explained why tempered martensite is very strong and tough.

Correct AnswerverifiedWhen martensite is tempered, some of the...View AnswerShow Answer

____ is magnetic and has very slight solid solubility, less than 0.02%, of carbon.

Correct AnswerverifiedShow Answer

____ is defined as the maximum load, per unit of area, to which a material will respond with a deformation directly proportional to the load.

Correct AnswerverifiedShow Answer

The fundamental building blocks of all metals are atoms arranged in very precise three-dimensional patterns called ____________________.

Correct AnswerverifiedShow Answer

While a metal is in the liquid-solid phase, it is ____.

Correct AnswerverifiedShow Answer

____________________ is the amount of thermal energy in matter.

Correct AnswerverifiedShow Answer

____ is the property that allows a metal to withstand forces, sudden shock, or bends without fracturing.

Correct AnswerverifiedShow Answer

____ strength is the property of a material to resist being crushed.

Correct AnswerverifiedShow Answer

What effect does forging have on a rolled steel's grain structure?

Correct AnswerverifiedShow Answer

The smallest identifiable group of atoms is the ____________________.

Correct AnswerverifiedShow Answer

How is a metal's hardness reduced?

Correct AnswerverifiedShow Answer

____ is the nonmagnetic form of iron and has the power to dissolve carbon and alloying elements.

Correct AnswerverifiedShow Answer

____ may be defined as resistance to penetration.

Correct AnswerverifiedShow Answer

Define annealing.

Correct AnswerverifiedAnnealing, frequently referred to as ful...View AnswerShow Answer

A cold-worked structure can be annealed by heating the metal above the ____ temperature.

Correct AnswerverifiedShow Answer

Correct Answer
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There are two forms of heat. One is call...
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When martensite is tempered, some of the...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Annealing, frequently referred to as ful...
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Correct Answer
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