Question 1

From which of the following ores is aluminum derived:

Accepted Answer

A) alumina 
B) bauxite 
C) cementite 
D) hematite 
E) scheelite 
A) alumina 
B) bauxite 
C) cementite 
D) hematite 
E) scheelite

Question 2

Which of the following best characterizes the structure of glass-ceramics:

Accepted Answer

A) 95% polycrystalline 
B) 95% vitreous 
C) 50% polycrystalline 
A) 95% polycrystalline 
B) 95% vitreous 
C) 50% polycrystalline

Question 3

Which of the following plastics accounts for the highest volume of all plastics:

Accepted Answer

A) phenolics 
B) polyethylene 
C) polypropylene 
D) polystyrene 
E) polyvinylchloride 
A) phenolics 
B) polyethylene 
C) polypropylene 
D) polystyrene 
E) polyvinylchloride

Question 4

Curing (cross-linking) of thermosetting polymers is accomplished at the fabrication plants rather than the chemical plants that supply the starting materials:

Accepted Answer

A) True 
 B)False

Question 5

Glass products are based primarily on which one of the following minerals:

Accepted Answer

A) alumina 
B) corundum 
C) feldspar 
D) kaolinite 
E) silica 
A) alumina 
B) corundum 
C) feldspar 
D) kaolinite 
E) silica

Question 6

Which of the following metals are widely used as the matrix metals in tungsten carbide and titanium carbide cermets (two best answers):

Accepted Answer

A) aluminum 
B) chromium 
C) cobalt 
D) lead 
E) nickel
F)Vanadium 
A) aluminum 
B) chromium 
C) cobalt 
D) lead 
E) nickel
F)Vanadium

Question 7

Plain carbon steels are designated in the AISI code system by which one of the following:

Accepted Answer

A) 01XX 
B) 10XX 
C) 11XX 
D) 12XX 
E) 30XX 
A) 01XX 
B) 10XX 
C) 11XX 
D) 12XX 
E) 30XX

Question 8

Curing of elastomers is known as which one of the following terms:

Accepted Answer

A) crystallization 
B) firing 
C) reinforcing 
D) sintering 
E) vulcanization 
A) crystallization 
B) firing 
C) reinforcing 
D) sintering 
E) vulcanization

Question 9

Which of the following ceramics are commonly used as abrasives in grinding wheels (two best answers):

Accepted Answer

A) aluminum oxide 
B) calcium oxide 
C) carbon monoxide 
D) silicon carbide 
E) silicon dioxide 
A) aluminum oxide 
B) calcium oxide 
C) carbon monoxide 
D) silicon carbide 
E) silicon dioxide

Question 10

As temperature is increased to slightly above 912 $\degree$C (1674 $\degree$F), pure iron transforms into which one of the following phases:

Accepted Answer

A) austenite 
B) cementite 
C) delta 
D) ferrite 
A) austenite 
B) cementite 
C) delta 
D) ferrite

Question 11

The chemical formula for polyisoprene in natural rubber is which of the following:

Accepted Answer

A) CH2 
B) C2H4 
C) C3H6 
D) C5H8 
E) C8H8 
A) CH2 
B) C2H4 
C) C3H6 
D) C5H8 
E) C8H8

Exam 5: Engineering Materials

From which of the following ores is aluminum derived:

Which of the following best characterizes the structure of glass-ceramics:

Which of the following plastics accounts for the highest volume of all plastics:

Curing (cross-linking) of thermosetting polymers is accomplished at the fabrication plants rather than the chemical plants that supply the starting materials:

Glass products are based primarily on which one of the following minerals:

Which of the following metals are widely used as the matrix metals in tungsten carbide and titanium carbide cermets (two best answers):

Plain carbon steels are designated in the AISI code system by which one of the following:

Curing of elastomers is known as which one of the following terms:

Which of the following ceramics are commonly used as abrasives in grinding wheels (two best answers):

As temperature is increased to slightly above 912 °\degree° C (1674 °\degree° F), pure iron transforms into which one of the following phases:

The chemical formula for polyisoprene in natural rubber is which of the following:

Introduction and Overview of Manufacturing

The Nature of Materials

Mechanical Properties of Materials

Physical Properties of 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

Brazing, Soldering, and Adhesive Bonding

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

As temperature is increased to slightly above 912 $\degree$ C (1674 $\degree$ F), pure iron transforms into which one of the following phases: