1. Which one is the most corrects process on glass industry?a. Batching - Ball mill/crusher – Furnace – Forming – Annealing – Cuttingb. Furnace – Ball mill/crusher – Batching – Forming – Annealing – Cuttingc. Batching - Ball mill/crusher – Furnace – Annealing – Forming – Cuttingd. Furnace – Batching - Annealing – Ball mill/crusher – Cutting – Forming

2. What is the main raw materials for making glass industry?a. Borax, Feldspar, Sand, Culletb. Sand, saltcake, Alumina, Feldsparc. Sand, Soda ash, Limestone, Culletd. Cobalt (III) Oxide, Sand, Soda ash, Saltcake

3. What machine that have function to melt raw materials of glass?a. Ball mill/crusherb. Furnacec. Annealerd. Glass tempering machine

4. Glass plate, window glass, and other daily glass included in ........... class.a. Fused silica glassb. Fiber glassc. Lead glassd. Soda-lime glass

5. The example of product from tempered glass is?a. Car windowb. Glass platec. Safety Glassd. Bottles