You will need to understand how products are made in industry and some of the processes involved.

Jeans Production.
A really good video about how jeans are made in a factory. Shows many of the machines that you need to know about as well as repetitive flow production, quality control and various fabric finishes. You really should watch it!

Spreading, lay planning and cutting. How fabric pieces are cut out in industry. Often an exam question. Involves CAD/CAM and reducing waste by laying out the pattern pieces as close together as possible. They also ask about cutting the fabric with a laser, saw or knife and the safety procedures.

Pressing in industry. A mass production alternative to ironing.