Test-1

What kind of material is glass

• Crystalline

• Poly Crystalline

• Amorphous

• Non Polar Molecular

Glass is indispensable because

• It is sustainable

• It is transparent

• It cannot be recycled

• It degenerates

Glass is made from the following

• Feldspar

• Dolomite

• River Sand

• Soda Ash

In 1950, float glass was created by

• Toshiya Iwasaki

• Dr. Alastair Pilkington

• Amory Houghton

• Jean-Baptiste Colbert

India has a per capita consumption of glass of

• 1.5 kg/capita

• 7.1 kg/capita

• 10kg/capita

• 15kg/capita

What is broken glass called

• Fullet

• Mullet

• Cullet

• Gullet

Molten tin floats on molten glass to form float glass

• True

• False

Tempered glass is made by

• Heating it to a high temperature and then rapidly cooling it
• Freezing it to a low temperature and then rapidly heating it
• Adding chemicals to the glass
• Mixing it with plastic

What is annealing process in float glass

• A process to increase the hardness of the glass
• A process to make the glass transparent
• A process to cool the glass slowly to remove internal stresses
• A process to add color to the glass

What are the standard thickness of float glass

• 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, 19mm
• 1mm, 2mm, 3mm, 4mm
• 5mm, 10mm, 15mm, 20mm
• 3mm, 6mm, 9mm, 12mm