Question

What enables the glassmaker to decide exactly how the glass is distributed in the parison?

(a) Density of gob and plunger

(b) Mass of gob and plunger

(c) Volume of gob and plunger

(d) Temperature of gob and plunger

I had been asked this question by my school principal while I was bunking the class.

The above asked question is from Manufacture of Glass in division Glass Packaging Materials of Food Packaging Technology

Answer 1

Correct answer is (c) Volume of gob and plunger

For explanation: The volume of gob and plunger enables the glassmaker to decide exactly how the glass is distributed in the parison and, hence, to be able to more accurately control the uniformity of glass distribution in the finished container. Indeed, weight savings of up to 30% can be made. The second stage is similar to the B&B process.