Question 1

Tin-leads are most commonly used for ____.

Accepted Answer

A)   food handling equipment
B)   plumbing
C)   commercial pipe production
D)   electrical connections D

Question 2

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 resistance B

Question 3

The strongest joints are obtained when the parts use lap or scarf joints where the joining area is equal to ____ times the thickness of the thinnest joint member.

Accepted Answer

A)   two
B)   three
C)   four
D)   five B

Question 4

List the three major functions of fluxes.

Accepted Answer

The answer of List the three major functions of fluxes....

Question 5

​Why would a fuel gas be bubbled through a flux container?

Accepted Answer

A)   ​So the flux can be carried to the torch where it combines with the flame.
B)   ​To help control the flame temperature.
C)   ​It is used to lubricate the valves of the torch.
D)   ​All of the above

Question 6

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

Accepted Answer

A)   ​torch brazing
B)   ​furnace brazing
C)   ​induction brazing
D)   ​dip brazing

Question 7

Fluxes that are active at room temperature ____.

Accepted Answer

A)   must be neutralized after completing the job
B)   cannot be neutralized
C)   do not have to be cleaned off the part
D)   must only be removed if the part is to be painted

Question 8

What is the paste range of an alloy of 61.9% tin and 38.1% lead?

Accepted Answer

A)   No paste range
B)   12°F
C)   73°F
D)   173°F

Question 9

____ alloys have excellent wetting, flow, and strength characteristics, but they are expensive.

Accepted Answer

A)   Tin-antimony
B)   Cadmium-silver
C)   Cadmium-zinc
D)   Copper-zinc

Question 10

​Which of the following is a form that flux is available as?

Accepted Answer

A)   ​rings
B)   ​washers
C)   ​sheets
D)   ​All of the above

Question 11

​What alloys make up the filler metal BAlSi?

Accepted Answer

A)   ​ammonia and sodium
B)   ​alum and sulfer
C)   ​aluminum and silicon
D)   ​aluminum and silver

Question 12

​What is an advantage of furnace brazing?

Accepted Answer

A)   ​controlled atmosphere
B)   ​corrosion protection
C)   ​steam explosions
D)   ​localized heating

Question 13

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

Accepted Answer

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

Question 14

Soldering fluxes are chemical compounds such as ____.

Accepted Answer

A)   fluorides
B)   chlorides
C)   boric acids
D)   muriatic acid

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

____ 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, brazing

Question 17

Brazing fluxes are chemical compounds such as ____.

Accepted Answer

A)   hydrochloric acid
B)   sal ammoniac
C)   alkalies
D)   rosin

Question 18

​The term phos-copper is used to refer to ________________.

Accepted Answer

A)   ​phosphorous brazing rods that are used on copper.
B)   ​the type of joint being made using a copper alloy filler rod.
C)   ​copper-phosphorus rods
D)   ​a filler rod containing phosphate and copper.

Question 19

As the joint space 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 joint

Question 20

____ has a higher tensile strength and lower creep than the tin-lead solders.

Accepted Answer

A)   Tin-antimony
B)   Cadmium-silver
C)   Cadmium-zinc
D)   Copper-zinc

Exam 33: Brazing, Braze Welding, and Soldering

Tin-leads are most commonly used for ____.

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

The strongest joints are obtained when the parts use lap or scarf joints where the joining area is equal to ____ times the thickness of the thinnest joint member.

List the three major functions of fluxes.

Why would a fuel gas be bubbled through a flux container?

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

Fluxes that are active at room temperature ____.

What is the paste range of an alloy of 61.9% tin and 38.1% lead?

____ alloys have excellent wetting, flow, and strength characteristics, but they are expensive.

Which of the following is a form that flux is available as?

What alloys make up the filler metal BAlSi?

What is an advantage of furnace brazing?

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

Soldering fluxes are chemical compounds such as ____.

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

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

Brazing fluxes are chemical compounds such as ____.

The term phos-copper is used to refer to ________________.

As the joint space decreases, ____.

____ has a higher tensile strength and lower creep than the tin-lead solders.

Exam 33: Brazing, Braze Welding, and Soldering

Tin-leads are most commonly used for ____.

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

The strongest joints are obtained when the parts use lap or scarf joints where the joining area is equal to ____ times the thickness of the thinnest joint member.

List the three major functions of fluxes.

​Why would a fuel gas be bubbled through a flux container?

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

Fluxes that are active at room temperature ____.

What is the paste range of an alloy of 61.9% tin and 38.1% lead?

____ alloys have excellent wetting, flow, and strength characteristics, but they are expensive.

​Which of the following is a form that flux is available as?

​What alloys make up the filler metal BAlSi?

​What is an advantage of furnace brazing?

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

Soldering fluxes are chemical compounds such as ____.

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

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

Brazing fluxes are chemical compounds such as ____.

​The term phos-copper is used to refer to ________________.

As the joint space decreases, ____.

____ has a higher tensile strength and lower creep than the tin-lead solders.

Why would a fuel gas be bubbled through a flux container?

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

Which of the following is a form that flux is available as?

What alloys make up the filler metal BAlSi?

What is an advantage of furnace brazing?

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

The term phos-copper is used to refer to ________________.