Question 1

Which one of the following terms refers to the glassy state of a material:

Accepted Answer

A) crystalline 
B) devitrified 
C) polycrystalline 
D) vitiated 
E) vitreous 
A) crystalline 
B) devitrified 
C) polycrystalline 
D) vitiated 
E) vitreous E

Question 2

The process used to produce flat plat glass in which molten glass flows onto the surface of molten tin is called which one of the following:

Accepted Answer

A) casting 
B) Danner process 
C) float process 
D) molten tin process 
E) rolling 
A) casting 
B) Danner process 
C) float process 
D) molten tin process 
E) rolling C

Question 3

If a glass part with a wall thickness of 5 mm (0.20 in) takes 10 minutes to anneal, how much time would a glass part of similar geometry but with a wall thickness of 7.5 mm (0.30 in) take to anneal (choose the one closest answer):

Accepted Answer

A) 10 minutes 
B) 15 minutes 
C) 20 minutes 
D) 30 minutes 
A) 10 minutes 
B) 15 minutes 
C) 20 minutes 
D) 30 minutes C

Question 4

A lehr is which of the following:

Accepted Answer

A) a lion's den 
B) a melting furnace 
C) a sintering furnace 
D) an annealing furnace 
E) none of the above 
A) a lion's den 
B) a melting furnace 
C) a sintering furnace 
D) an annealing furnace 
E) none of the above

Question 5

Typical glass melting temperatures are in which of the following ranges:

Accepted Answer

A) 400 $\degree$C to 500 $\degree$C 
B) 900 $\degree$C to 1000 $\degree$C 
C) 1500 $\degree$C to 1600 $\degree$C 
D) 2000 $\degree$C to 2200 $\degree$C 
A) 400 $\degree$C to 500 $\degree$C 
B) 900 $\degree$C to 1000 $\degree$C 
C) 1500 $\degree$C to 1600 $\degree$C 
D) 2000 $\degree$C to 2200 $\degree$C

Question 6

Which one of the following processes is used to produce glass tubing:

Accepted Answer

A) Danner process 
B) centrifugal casting 
C) pressing 
D) spinning 
A) Danner process 
B) centrifugal casting 
C) pressing 
D) spinning

Question 7

The press -and- blow process is best suited to the production of narrow-necked beverage bottles, while the blow-and-blow process is more appropriate for producing wide-mouthed jars:

Accepted Answer

A) True 
 B)False

Question 8

Glass spinning is a glassworking process used to produce which of the following types of products:

Accepted Answer

A) filaments for fiber optics 
B) flat plates 
C) funnel-shaped components 
D) lenses 
E) tubes 
A) filaments for fiber optics 
B) flat plates 
C) funnel-shaped components 
D) lenses 
E) tubes

Question 9

Which one of the following processes or processing steps is not applicable in glassworking:

Accepted Answer

A) annealing 
B) pressing 
C) quenching 
D) sintering 
A) annealing 
B) pressing 
C) quenching 
D) sintering

Question 10

Centrifugal spraying is used to produce which one of the following:

Accepted Answer

A) continuous filaments of glass 
B) glass powders 
C) glass wool 
D) thin coatings of glass on the surface of metal 
A) continuous filaments of glass 
B) glass powders 
C) glass wool 
D) thin coatings of glass on the surface of metal

Question 11

Besides helping to preserve the environment, the use of recycled glass as an ingredient of the starting material in glassmaking serves what other useful purpose (one answer):

Accepted Answer

A) adds coloring variations to the glass for aesthetic value 
B) makes the glass easier to melt 
C) makes the glass stronger 
D) reduces odors in the plant 
A) adds coloring variations to the glass for aesthetic value 
B) makes the glass easier to melt 
C) makes the glass stronger 
D) reduces odors in the plant

Question 12

The charge in glassworking is which one of the following:

Accepted Answer

A) the duration of the melting cycle 
B) the electric energy required to melt the glass 
C) the name given to the melting furnace 
D) the starting materials in melting 
A) the duration of the melting cycle 
B) the electric energy required to melt the glass 
C) the name given to the melting furnace 
D) the starting materials in melting

Question 13

Classifying the sand to be melted into molten glass before shaping is best defined by which one of the following:

Accepted Answer

A) grouping the grains according to size 
B) mixing the batch to achieve uniform distribution of grain sizes 
C) preheating the batch 
D) sorting the grains according to color 
E) washing the sand particles 
A) grouping the grains according to size 
B) mixing the batch to achieve uniform distribution of grain sizes 
C) preheating the batch 
D) sorting the grains according to color 
E) washing the sand particles

Question 14

Casting is a glassworking process used for

Accepted Answer

A) high production 
B) low production 
C) medium production 
A) high production 
B) low production 
C) medium production

Question 15

Tempered glass is used for all but which one of the following products:

Accepted Answer

A) all-glass doors 
B) automobile windshields 
C) safety glasses 
D) windows for tall buildings 
A) all-glass doors 
B) automobile windshields 
C) safety glasses 
D) windows for tall buildings

Exam 9: Glassworking

Which one of the following terms refers to the glassy state of a material:

The process used to produce flat plat glass in which molten glass flows onto the surface of molten tin is called which one of the following:

If a glass part with a wall thickness of 5 mm (0.20 in) takes 10 minutes to anneal, how much time would a glass part of similar geometry but with a wall thickness of 7.5 mm (0.30 in) take to anneal (choose the one closest answer):

A lehr is which of the following:

Typical glass melting temperatures are in which of the following ranges:

Which one of the following processes is used to produce glass tubing:

The press -and- blow process is best suited to the production of narrow-necked beverage bottles, while the blow-and-blow process is more appropriate for producing wide-mouthed jars:

Glass spinning is a glassworking process used to produce which of the following types of products:

Which one of the following processes or processing steps is not applicable in glassworking:

Centrifugal spraying is used to produce which one of the following:

Besides helping to preserve the environment, the use of recycled glass as an ingredient of the starting material in glassmaking serves what other useful purpose (one answer):

The charge in glassworking is which one of the following:

Classifying the sand to be melted into molten glass before shaping is best defined by which one of the following:

Casting is a glassworking process used for

Tempered glass is used for all but which one of the following products:

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

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