MATSE 81 Exam 3 Questions With 100%
Correct Answers
According to the course reading, the ancient Mesopotamians began using this composite around 3400
BCE.
plywood
What two phases compose many composite materials?
matrix and dispersed phase
What are the sub-classifications of structural composite types discussed in this chapter?
laminates, sandwich panels
What is the distinction between large-particle and dispersion-strengthened composites?
continuum mechanics is used for the particle-matrix interaction
What is the major limitation of Portland Concrete?
extremely brittle
What direction of fiber alignment with applied stress results in the best strengthening?
parallel
On the basis of diameter and character, fibers are grouped into what different classifications?
whiskers, fibers, wires
In general, what is the role of the reinforcing component in a ceramic-matrix composite?
improve fracture toughness
This composite is designed to be lightweight beams or panels:
sandwich panel
Which of these nanocomposite materials classifications is used in the niche application of increasing
the freshness and shelf lived of food and beverages?
gas-barrier coatings
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization, this
substance has little use as a solo medium?
cement
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization,
what is the planet's greatest natural structure?
Australia's Great Barrier Reef
Concrete has all of the following properties except:
crack resistant
, Approximately how many spectators did the Roman Colosseum hold?
50,000
What is 'Portland Cement' named after?
a local landmark near its development
What was first added to concrete to make reinforced concrete?
chicken wire
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization, who
uses scientific mixes of selected raw materials to produce very dense concrete?
nuclear power plants
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization, how
many movies has the Empire State Building has been used in?
more than 90
How heavy are the underwater concrete blocks used by the Verrazano bridge in New York?
400,000 tons
How many nautical miles did the completion of the Panama Canal eliminate from ships making a New
York to San Francisco trip?
8,000
Which of these are classified by the textbook as metal forming operations?
forging, rolling, extruding, drawing
What is drawing?
pulling of a metal piece through a die having a tapered bore by means of a tensile force that is applied
on the exit side
What is investment casting?
pattern is made from a wax or plastic
What is sand casting?
ordinary sand is used as the mold material
Which specific point in the fabrication and processing of glasses is the temperature at which atomic
diffusion is sufficiently rapid that any residual stresses may be removed within about 15 minutes?
annealing
Which of the following glass forming process has a version in which molten glass is pulled from a
platinum heating chamber through small orifices at the chamber base?
Correct Answers
According to the course reading, the ancient Mesopotamians began using this composite around 3400
BCE.
plywood
What two phases compose many composite materials?
matrix and dispersed phase
What are the sub-classifications of structural composite types discussed in this chapter?
laminates, sandwich panels
What is the distinction between large-particle and dispersion-strengthened composites?
continuum mechanics is used for the particle-matrix interaction
What is the major limitation of Portland Concrete?
extremely brittle
What direction of fiber alignment with applied stress results in the best strengthening?
parallel
On the basis of diameter and character, fibers are grouped into what different classifications?
whiskers, fibers, wires
In general, what is the role of the reinforcing component in a ceramic-matrix composite?
improve fracture toughness
This composite is designed to be lightweight beams or panels:
sandwich panel
Which of these nanocomposite materials classifications is used in the niche application of increasing
the freshness and shelf lived of food and beverages?
gas-barrier coatings
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization, this
substance has little use as a solo medium?
cement
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization,
what is the planet's greatest natural structure?
Australia's Great Barrier Reef
Concrete has all of the following properties except:
crack resistant
, Approximately how many spectators did the Roman Colosseum hold?
50,000
What is 'Portland Cement' named after?
a local landmark near its development
What was first added to concrete to make reinforced concrete?
chicken wire
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization, who
uses scientific mixes of selected raw materials to produce very dense concrete?
nuclear power plants
According to the video Monuments to Man: The Impact and Influence of Concrete on Civilization, how
many movies has the Empire State Building has been used in?
more than 90
How heavy are the underwater concrete blocks used by the Verrazano bridge in New York?
400,000 tons
How many nautical miles did the completion of the Panama Canal eliminate from ships making a New
York to San Francisco trip?
8,000
Which of these are classified by the textbook as metal forming operations?
forging, rolling, extruding, drawing
What is drawing?
pulling of a metal piece through a die having a tapered bore by means of a tensile force that is applied
on the exit side
What is investment casting?
pattern is made from a wax or plastic
What is sand casting?
ordinary sand is used as the mold material
Which specific point in the fabrication and processing of glasses is the temperature at which atomic
diffusion is sufficiently rapid that any residual stresses may be removed within about 15 minutes?
annealing
Which of the following glass forming process has a version in which molten glass is pulled from a
platinum heating chamber through small orifices at the chamber base?
