MSSC production practice

Production materials start with raw materials. An example of a raw material is

• an iron ingot used to make steel.

• sand used to make glass.

• yarn used to make a sweater.

Both natural and synthetic materials are prepared in standard sizes, shapes, and conditions during

• primary processing.

• recycling.

Engineering materials are chosen for a process based on how their properties match the desired characteristics of the product. Among the properties that might be considered in choosing engineering materials are

• melting point, hardness, and delivery schedule.

• ductility, hardness, and appearance.

Wood is used to make synthetic wood products. A wood product that is made from veneer is

• plywood.

• hardwood.

Ceramics have properties that make them useful for many applications for which neither metal nor plastic will work. Among the properties of ceramics are

• hardness and heat resistance.

• strength and electrical conductivity.

Use of the wrong materials can cause a product to fail. If you are involved in the process of selecting manufacturing materials, you will need to consider

• safety.

• cost.

• performance.

• all of the above.

Natural metals are extracted from minerals called ores. All of the following are natural metals, except

• steel.

• copper.

Polymers are substances composed of very large molecules of smaller repeating molecular units. Materials that are polymers include

• plastic.

• wood.

Materials for producing chemicals come from many different sources. The most important source of chemicals is

• rivers and oceans.

• fossil fuels.

• mined minerals.

Fossil fuels are used as raw materials to produce chemicals and as energy sources. Fossil fuels come from

• the processing of crude oil.

• prehistoric plant and animal remains.