Piston Rings Are Made from All These Materials, EXCEPT _____

question 20

Multiple Choice

Piston rings are made from all these materials, EXCEPT _____.

• A)ductile iron
• B)aluminum wire
• C)steel wire
• D)cast iron

---

Definitions:

Variable Cost

Expenses that fluctuate based on the volume of goods or services a company generates, including materials and labor.

Quantity

Quantity refers to the amount or number of a material or immaterial entity that is measured or quantifiable.

Average Variable Cost

Average Variable Cost is the total variable cost of production divided by the quantity of output produced, representing the variable cost per unit of output.

Variable Cost

Costs that are directly proportional to the level of output or production.