Glass Production: Composition and Types

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What is the percentage of Silica in the raw materials of glass?

90%
80%
70% (correct)
60%

Which type of glass is produced using Barium (Ba)?

Heat & shock proof glass
Glass with high RI (correct)
Flint glass
Hard glass

What is the primary use of Sheet Glass?

For making flint glass
Where cost is not a factor
Where vision is required but cost is an important factor (correct)
Where vision is not required

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 (D) Signup and view all the answers

What is the name of the process of drawing glass from a molten bath into a thin sheet of film?

Sheet Glass Manufacturing (D) Signup and view all the answers

Which raw material is used to produce glass with high reflective index?

Barium (Ba) (B) Signup and view all the answers

What is the purpose of the annealing lehr in the glass manufacturing process?

To cool the glass slowly (C) Signup and view all the answers

What is the characteristic of plate glass that makes it stronger than sheet glass?

It is more transparent (B) Signup and view all the answers

In which country was the Bicheroux process developed?

France (B) Signup and view all the answers

What is the purpose of the ladle in the manufacturing process of plate glass?

To pour the molten glass onto a cast iron table (A) Signup and view all the answers

When was the float glass process developed?

1950s (D) Signup and view all the answers

What is the combination of raw materials used in the manufacturing process of float glass?

Oil or gas fired furnace (B) Signup and view all the answers

What is a benefit of using tinted glass in buildings?

Reduced glare and brightness in rooms (A) Signup and view all the answers

What is tempered plate glass more resistant to than regular plate glass?

Thermal shock and fracture (B) Signup and view all the answers

What is the normal maximum size of tempered plate glass sheets?

96 x 120 in (D) Signup and view all the answers

What is the purpose of applying vitreous glass against a backup of masonry?

To prevent breakage (A) Signup and view all the answers

What is the minimum thickness of tempered plate glass available?

1/4 in (D) Signup and view all the answers

What is the typical use of vitreous glass?

Curtain wall construction (B) Signup and view all the answers

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 (D) Signup and view all the answers

What is the primary benefit of using reflective glass?

Reducing solar heat gain and glare (B) Signup and view all the answers

What is the purpose of the chrome coating on reflective glass?

To provide a silvery outdoor reflection and create a cool effect (B) Signup and view all the answers

In what type of vacuum chamber is the glass-coating process for reflective glass carried out?

Large, rectangular chamber (A) Signup and view all the answers

What is the range of nominal light transmittances available for reflective glass?

8, 14, 20 percent (B) Signup and view all the answers

What is the benefit of using laminated safety glass?

It provides bulletproofing (B) Signup and view all the answers

What is the result of light scattering during transmission in frosted glass?

The glass becomes translucent (B) Signup and view all the answers

Which method is used to achieve a permanent frosting effect on glass?

Painting the glass surface with white lead and oil (D) Signup and view all the answers

What is the material used to bond two thicknesses of plate or sheet glass in laminated safety glass?

Polyvinyl butyral resin (D) Signup and view all the answers

What is the maximum size of laminated safety glass made from sheet glass with a 9/64 thickness?

7 sq.ft. (D) Signup and view all the answers

What is the purpose of laminated safety glass in the automotive industry?

To withstand firearm attack and explosions (A) Signup and view all the answers

What is the minimum thickness of laminated safety glass made from plate glass?

1/4 (C) Signup and view all the answers