Question

The molten mixture of sand, soda, limestone for the development of glass is called as __________

• A. mold
• B. gob
• C. curing
• D. annealing

Hint:

Visualize a glass bottle factory. A stream of glowing, molten glass comes out of the furnace. Shears cut off a precise "gob" of this glass, which then drops into a mold to be shaped. The gob is the raw material unit for one bottle.

Answer 1

The Correct Option is B

Step 1: Concept Overview:
This question focuses on the vocabulary used in glass container production. Raw materials (sand, soda ash, limestone) are melted, and the resulting molten glass is shaped into containers.
Step 3: Detailed Explanation:
- The melted raw materials are referred to as molten glass or glass melt. During forming, a precise quantity of this molten glass is cut off to create a single container. This specific portion is called a gob.
- A mold is a hollow cavity where the gob is placed and shaped (by blowing or pressing) into a bottle or jar.
- Curing is generally used in the context of polymers and concrete, not glass production.
- Annealing is a critical post-forming process. It involves slowly cooling the glass container in a lehr to eliminate internal stresses and enhance durability.
Therefore, "gob" is the correct term for the measured amount of molten glass used in forming each container.
Step 4: Conclusion:
A defined amount of molten glass used to create a single glass object is called a gob. Thus, option (B) is correct.