Question 1

Best clearances between surfaces in brazing are which one of the following ranges:

Accepted Answer

A) 0.0025-0.025 mm (0.0001-0.001 in.) 
B) 0.025-0.250 mm (0.001-0.010 in.) 
C) 0.250-2.50 mm (0.010-0.100 in.) 
D) 2.5-5.0 mm (0.10-0.20 in.) 
A) 0.0025-0.025 mm (0.0001-0.001 in.) 
B) 0.025-0.250 mm (0.001-0.010 in.) 
C) 0.250-2.50 mm (0.010-0.100 in.) 
D) 2.5-5.0 mm (0.10-0.20 in.) B

Question 2

The strength of a brazed joint is typically

Accepted Answer

A) equal to 
B) stronger than 
C) weaker than the filler metal out of which it is made 
A) equal to 
B) stronger than 
C) weaker than the filler metal out of which it is made B

Question 3

The most common types of brazed joints are which two of the following:

Accepted Answer

A) butt 
B) corner 
C) edge 
D) lap 
E) tee 
A) butt 
B) corner 
C) edge 
D) lap 
E) tee A , D

Question 4

In adhesive bonding, which one of the following is the term used for the parts that are joined:

Accepted Answer

A) adherend 
B) adherent 
C) adhesive 
D) adhibit 
E) ad infinitum 
A) adherend 
B) adherent 
C) adhesive 
D) adhibit 
E) ad infinitum

Question 5

Wave soldering is used in the production of which one of the following products and/or assemblies:

Accepted Answer

A) beach balls 
B) children's toys 
C) plumbing fixtures 
D) printed circuit board assemblies 
E) surfboards
F)twisted wires 
A) beach balls 
B) children's toys 
C) plumbing fixtures 
D) printed circuit board assemblies 
E) surfboards
F)twisted wires

Question 6

Weldbonding is an adhesive joining method in which heat is used to melt the adhesive:

Accepted Answer

A) True 
 B)False

Question 7

Which one of the following is not a function of a flux in brazing or soldering:

Accepted Answer

A) chemically etch the surfaces to increase roughness for better adhesion of the filler metal 
B) promote wetting of the surfaces 
C) protect the faying surfaces during the process 
D) remove or inhibit formation of oxide films 
A) chemically etch the surfaces to increase roughness for better adhesion of the filler metal 
B) promote wetting of the surfaces 
C) protect the faying surfaces during the process 
D) remove or inhibit formation of oxide films

Question 8

Scarfing in the brazing of a butt joint involves the wrapping of a sheath around the two parts to be joined to contain the molten filler metal during the heating process:

Accepted Answer

A) True 
 B)False

Question 9

A soldering gun is used to inject molten solder metal into the joint area when the trigger is pulled:

Accepted Answer

A) True 
 B)False

Question 10

Which of the following soldering methods are not used for brazing (two correct answers):

Accepted Answer

A) dip soldering 
B) infrared soldering 
C) soldering iron 
D) torch soldering 
E) wave soldering? 
A) dip soldering 
B) infrared soldering 
C) soldering iron 
D) torch soldering 
E) wave soldering?

Question 11

Roughening the faying surfaces tends to

Accepted Answer

A) have no effect on 
B) increase 
C) reduce the strength of an adhesively bonded joint 
A) have no effect on 
B) increase 
C) reduce the strength of an adhesively bonded joint

Question 12

Which of the following are advantages of brazing compared to fusion welding (three best answers):

Accepted Answer

A) annealing of the base parts is a by-product of the process 
B) dissimilar metals can be joined 
C) less heat and energy required 
D) metallurgical improvements in the base metals 
E) multiple joints can be brazed simultaneously
F)parts can be readily disassembled
G)stronger joint than welding 
A) annealing of the base parts is a by-product of the process 
B) dissimilar metals can be joined 
C) less heat and energy required 
D) metallurgical improvements in the base metals 
E) multiple joints can be brazed simultaneously
F)parts can be readily disassembled
G)stronger joint than welding

Question 13

Which of the following metals are used in solder alloys (four correct answers):

Accepted Answer

A) aluminum 
B) antimony 
C) gold 
D) iron 
E) lead
F)nickel
G)silver
H)tin
I)titanium 
A) aluminum 
B) antimony 
C) gold 
D) iron 
E) lead
F)nickel
G)silver
H)tin
I)titanium

Question 14

Braze welding derives its name from the fact that some melting of the base metals occur, as in fusion welding:

Accepted Answer

A) True 
 B)False

Question 15

In brazing, the base metals melt at temperatures above 840 $\degree$ (450 $\degree$C) while in soldering they melt at 840 $\degree$F (450 $\degree$C) or below:

Accepted Answer

A) True 
 B)False

Question 16

Adhesively bonded joints are strongest under which type of stresses (two best answers):

Accepted Answer

A) cleavage 
B) peeling 
C) shear 
D) tension 
A) cleavage 
B) peeling 
C) shear 
D) tension

Exam 27: Brazing, Soldering, and Adhesive Bonding

Best clearances between surfaces in brazing are which one of the following ranges:

The strength of a brazed joint is typically

The most common types of brazed joints are which two of the following:

In adhesive bonding, which one of the following is the term used for the parts that are joined:

Wave soldering is used in the production of which one of the following products and/or assemblies:

Weldbonding is an adhesive joining method in which heat is used to melt the adhesive:

Which one of the following is not a function of a flux in brazing or soldering:

Scarfing in the brazing of a butt joint involves the wrapping of a sheath around the two parts to be joined to contain the molten filler metal during the heating process:

A soldering gun is used to inject molten solder metal into the joint area when the trigger is pulled:

Which of the following soldering methods are not used for brazing (two correct answers):

Roughening the faying surfaces tends to

Which of the following are advantages of brazing compared to fusion welding (three best answers):

Which of the following metals are used in solder alloys (four correct answers):

Braze welding derives its name from the fact that some melting of the base metals occur, as in fusion welding:

In brazing, the base metals melt at temperatures above 840 °\degree° (450 °\degree° C) while in soldering they melt at 840 °\degree° F (450 °\degree° C) or below:

Adhesively bonded joints are strongest under which type of stresses (two best answers):

Introduction and Overview of Manufacturing

The Nature of Materials

Mechanical Properties of Materials

Physical Properties of Materials

Engineering Materials

Dimensions, Surfaces, and Their Measurement

Fundamentals of Metal Casting

Metal Casting Processes

Glassworking

Shaping Processes for Plastics

Processing of Polymer Matrix Composites and Rubber

Powder Metallurgy

Processing of Ceramics and Cermets

Fundamentals of Metal Forming

Bulk Deformation Processes in Metal Workiing

Sheet Metalworking

Theory of Metal Machining

Machining Operations and Machine Tools

Cutting Tool Technology

Economic and Product Design Considerations

Grinding and Other Abrasive Processes

Nontraditional Machining and Thermal Cutting

Heat Treatment of Metals

Surface Processing Operations

Fundamentals of Welding

Welding Processes

Mechanical Assembly

Rapid Prototyping and Additive Manufacturing

Processing of Integrated Circuits

Electronics Assembly and Packaging

Microfabrication Technologies

Nanofabrication Technologies

Automation Technologies for Manufacturing Systems

Integrated Manufacturing Systems

Process Planning and Production Control

Quality Control and Inspection

Filters

In brazing, the base metals melt at temperatures above 840 $\degree$ (450 $\degree$ C) while in soldering they melt at 840 $\degree$ F (450 $\degree$ C) or below: