Which one of the following is not a direct material?

Entry field with correct answer

A. Plastic used in the covered case for a home PC

B. A tire used for a lawn mower

C. Steel used in the manufacturing of steel-radial tires

D. Lubricant for a ball-bearing joint for a large crane

D.

Explanation:

Out of all the answers provided within the question we can say that the one answer that is not a direct material is Lubricant for a ball-bearing joint for a large crane. This is because direct material's are materials used when manufacturing a product and that are specific to the product that is produced. Seeing as how lubricant is not specific to the production of a large crane and is used in just about every machinery, then it is not considered as a direct material.