Glass Engg_2023 batch

The temperature of the glass melting furnace is around?

• 1000oC

• 1550oC

• 3000oC

• 2000oC

What is the temperature during the formation of the gob?

• 1100oC

• 2000oC

• 800oC

• 500oC

Which of the following processes is absent in the glass manufacturing process?

• Melting

• Shaping or forming

• Annealing

• Sintering

Which of the following is not a process involved in glass production?

• Extrusion

• Forming and shaping

• Finishing

• Heat treatment

Which operation does the figure represent?

• Drawing

• Pressing

• Blowing

• Rolling

Which forming operation does the below figure represent?

• Drawing

• Pressing

• Floating

• Rolling

Which forming method is used for the production of hollow glasses?

• Blowing

• Casting

• Pressing

• Drawing

Which method of forming cannot be used to produce sheet glass?

• All of the above

• Casting

• Floating

• Rolling

The process of converting a gob of glass into a bottle or jar is called __________.

• threading

• moulding

• forming

• annealing

The viscosity of glass at Melting point is

• 10² P

• 10 ^7.5 P

• 10 ¹³ P

• 10 ^14.5 P