30 Questions
What is the percentage of Silica in the raw materials of glass?
70%
Which type of glass is produced using Barium (Ba)?
Glass with high RI
What is the primary use of Sheet Glass?
Where vision is required but cost is an important factor
What is the purpose of adding cullet (broken glass) to the furnace during the manufacturing process?
To reduce the melting point of the raw materials
What is the name of the process of drawing glass from a molten bath into a thin sheet of film?
Sheet Glass Manufacturing
Which raw material is used to produce glass with high reflective index?
Barium (Ba)
What is the purpose of the annealing lehr in the glass manufacturing process?
To cool the glass slowly
What is the characteristic of plate glass that makes it stronger than sheet glass?
It is more transparent
In which country was the Bicheroux process developed?
France
What is the purpose of the ladle in the manufacturing process of plate glass?
To pour the molten glass onto a cast iron table
When was the float glass process developed?
1950s
What is the combination of raw materials used in the manufacturing process of float glass?
Oil or gas fired furnace
What is a benefit of using tinted glass in buildings?
Reduced glare and brightness in rooms
What is tempered plate glass more resistant to than regular plate glass?
Thermal shock and fracture
What is the normal maximum size of tempered plate glass sheets?
96 x 120 in
What is the purpose of applying vitreous glass against a backup of masonry?
To prevent breakage
What is the minimum thickness of tempered plate glass available?
1/4 in
What is the typical use of vitreous glass?
Curtain wall construction
What is the purpose of the molten metal bath in the float glass manufacturing process?
To smooth out any irregularities on the surface of the glass
What is the primary benefit of using reflective glass?
Reducing solar heat gain and glare
What is the purpose of the chrome coating on reflective glass?
To provide a silvery outdoor reflection and create a cool effect
In what type of vacuum chamber is the glass-coating process for reflective glass carried out?
Large, rectangular chamber
What is the range of nominal light transmittances available for reflective glass?
8, 14, 20 percent
What is the benefit of using laminated safety glass?
It provides bulletproofing
What is the result of light scattering during transmission in frosted glass?
The glass becomes translucent
Which method is used to achieve a permanent frosting effect on glass?
Painting the glass surface with white lead and oil
What is the material used to bond two thicknesses of plate or sheet glass in laminated safety glass?
Polyvinyl butyral resin
What is the maximum size of laminated safety glass made from sheet glass with a 9/64 thickness?
7 sq.ft.
What is the purpose of laminated safety glass in the automotive industry?
To withstand firearm attack and explosions
What is the minimum thickness of laminated safety glass made from plate glass?
1/4
Test your knowledge of the components of glass, including raw materials and their percentages, as well as the types of glass produced from different elements such as sodium, potassium, calcium, and barium. Learn about the sources of these elements and their uses in glass production.
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