Question 1

In ____ processing, the entire surface of the part can be covered with the filler metal at the same time that it is being joined.

Accepted Answer

A)   furnace
B)   induction
C)   dip
D)   resistanceE) A) and B)
F) None of the above

Question 2

Which of the following is a function of fluxes used in brazing and soldering?

Accepted Answer

A)   They must prevent wetting.
B)   They must discourage capillary action.
C)   They must remove oxides that form from heating parts
D)   They must encourage oxides to form in the heated parts.E) B) and C)
F) C) and D)

Question 3

The spacing between the parts being joined greatly affects the ____ of the finished part.

Accepted Answer

A)   shear strength
B)   tensile strength
C)   fatigue resistance
D)   corrosion resistanceE) A) and D)
F) None of the above

Question 4

The ____________________ is the lowest possible melting point of an alloy.

Accepted Answer

eutectic c...

Question 5

For a solder or braze joint, the ____ depends on the amount of overlapping area of the base parts.

Accepted Answer

A)   shear strength
B)   ductility
C)   fatigue resistance
D)   corrosion resistanceE) B) and C)
F) A) and D)

Question 6

Unlike welding or hardsurfacing, ____________________ has no hard spots that make remachining difficult.

Accepted Answer

The answer of Unlike welding or hardsurfacing, ____________________ has no...

Question 7

____ relies on capillary action to draw filler metal into the joint, whereas ____ does not need capillary action.

Accepted Answer

A)   Braze welding, brazing
B)   Brazing, braze welding
C)   Soldering, braze welding
D)   Soldering, brazingE) B) and C)
F) C) and D) B

Question 8

Fluxes that are inactive at room temperature ____.

Accepted Answer

A)   must be neutralized after the job is completed
B)   may result in corrosion if left on the part
C)   must be removed if the part is to be painted
D)   must always be removedE) None of the above
F) All of the above

Question 9

Which of the following is true of fluxes?

Accepted Answer

A)   They are not reactive at room temperature.
B)   If they are overheated they contaminate the joint.
C)   They are not able to dissolve surface oxides.
D)   Fluxes are able to dissolve oils.E) B) and D)
F) All of the above

Question 10

____________________ occurs at a temperature above 840 ° F.

Accepted Answer

The answer of ____________________ occurs at a temperature above 840...

Question 11

The ____ flame has a very high temperature near the inner cone, but it has little heat in the outer flame, resulting in localized overheating.

Accepted Answer

A)   propane
B)   butane
C)   oxyacetylene
D)   natural gasE) None of the above
F) B) and C)

Question 12

As the joint spacing decreases, ____.

Accepted Answer

A)   the shear strength decreases
B)   the surface tension decreases the tensile strength of the joint
C)   the shear strength increases
D)   the surface tension increases the tensile strength of the jointE) A) and D)
F) A) and C)

Question 13

Summarize the properties of copper-zinc alloys.

Accepted Answer

Copper-zinc alloys are the most popular ...

Question 14

Fluxes are usually required to promote ________________ when BCuP alloys are used on brass, steel, and many other metals.

Accepted Answer

A)   wetting
B)   overheating
C)   corrosion resistance
D)   decontaminationE) A) and B)
F) None of the above A

Question 15

The ____________________ strength of a joint is its ability to withstand a force parallel to the joint.

Accepted Answer

The answer of The ____________________ strength of a joint is...

Question 16

Summarize the properties of cadmium-zinc alloys.

Accepted Answer

Cadmium-zinc alloys have good ...

Question 17

Summarize the advantages and disadvantages of resistance soldering and brazing.

Accepted Answer

Some of the advantages of the resistance...

Question 18

What is the basis of the series of letters after the letter B in the AWS classification system for brazing alloys.

Accepted Answer

A)   It is the abbreviation of the alloy metals that can be brazed with this rod.
B)   They stand for the initials of the inventor of the alloy.
C)   They are radially selected by a board at the AWS.
D)   They are the atomic symbols of the metals that make up the alloy.E) A) and D)
F) A) and C)

Question 19

Versatility, portability, and speed are all advantages of which brazing process?

Accepted Answer

A)   Torch brazing
B)   Furnace brazing
C)   Induction brazing
D)   Dip brazingE) A) and B)
F) B) and C)

Question 20

The ____ method of heating uses a high-frequency electrical current to establish a corresponding current on the surface of the part.

Accepted Answer

A)   furnace
B)   induction
C)   dip
D)   resistanceE) C) and D)
F) None of the above B

Exam 32: Oxyacetylene Welding and Brazing, Braze Welding, and Soldering

In ____ processing, the entire surface of the part can be covered with the filler metal at the same time that it is being joined.

Correct AnswerverifiedShow Answer

Which of the following is a function of fluxes used in brazing and soldering?

Correct AnswerverifiedShow Answer

The spacing between the parts being joined greatly affects the ____ of the finished part.

Correct AnswerverifiedShow Answer

The ____________________ is the lowest possible melting point of an alloy.

Correct Answerverifiedeutectic c...View AnswerShow Answer

For a solder or braze joint, the ____ depends on the amount of overlapping area of the base parts.

Correct AnswerverifiedShow Answer

Unlike welding or hardsurfacing, ____________________ has no hard spots that make remachining difficult.

Correct AnswerverifiedShow Answer

____ relies on capillary action to draw filler metal into the joint, whereas ____ does not need capillary action.

Correct AnswerverifiedB

Fluxes that are inactive at room temperature ____.

Correct AnswerverifiedShow Answer

Which of the following is true of fluxes?

Correct AnswerverifiedShow Answer

____________________ occurs at a temperature above 840 ° F.

Correct AnswerverifiedShow Answer

The ____ flame has a very high temperature near the inner cone, but it has little heat in the outer flame, resulting in localized overheating.

Correct AnswerverifiedShow Answer

As the joint spacing decreases, ____.

Correct AnswerverifiedShow Answer

Summarize the properties of copper-zinc alloys.

Correct AnswerverifiedCopper-zinc alloys are the most popular ...View AnswerShow Answer

Fluxes are usually required to promote ________________ when BCuP alloys are used on brass, steel, and many other metals.

Correct AnswerverifiedA

The ____________________ strength of a joint is its ability to withstand a force parallel to the joint.

Correct AnswerverifiedShow Answer

Summarize the properties of cadmium-zinc alloys.

Correct AnswerverifiedCadmium-zinc alloys have good ...View AnswerShow Answer

Summarize the advantages and disadvantages of resistance soldering and brazing.

Correct AnswerverifiedSome of the advantages of the resistance...View AnswerShow Answer

What is the basis of the series of letters after the letter B in the AWS classification system for brazing alloys.

Correct AnswerverifiedShow Answer

Versatility, portability, and speed are all advantages of which brazing process?

Correct AnswerverifiedShow Answer

The ____ method of heating uses a high-frequency electrical current to establish a corresponding current on the surface of the part.

Correct AnswerverifiedB

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eutectic c...
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relies on capillary action to draw filler metal into the joint, whereas does not need capillary action.

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B

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Copper-zinc alloys are the most popular ...
View Answer

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A

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Cadmium-zinc alloys have good ...
View Answer

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Some of the advantages of the resistance...
View Answer

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B