7. Which cost is categorized as manufacturing overhead cost?

Answer: B

Explanation:

Plant maintenance costs are categorized as manufacturing overhead cost.

Manufacturing overhead costs include all costs associated with the production process that are not directly tied to specific units of production. Plant maintenance costs are a prime example, as they are necessary for maintaining the production facility but cannot be directly traced to individual products.

A) OIL

While oil may be used in the manufacturing process, it is typically categorized as a direct material cost rather than manufacturing overhead. Direct materials are those that can be directly traced to specific products, whereas overhead encompasses indirect costs.

B) Plant maintenance costs

Plant maintenance costs are a clear example of manufacturing overhead. These costs ensure that the production facility operates efficiently and effectively, supporting the overall manufacturing process without being directly attributable to the production of specific goods.

C) CEO salary

The salary of a CEO is considered an administrative expense rather than a manufacturing overhead cost. It does not relate directly to the production process and is not included in the costs that support manufacturing activities.

D) Plant assembly line worker wages

Wages for plant assembly line workers are classified as direct labor costs, as these costs can be directly traced to the production of specific products. Unlike manufacturing overhead, direct labor represents the labor costs that are directly tied to the output.

Conclusion

Plant maintenance costs are definitively categorized as manufacturing overhead because they support the overall production process without being directly linked to specific products. In contrast, the other options fail to qualify as manufacturing overhead, either falling into direct costs or administrative expenses. This distinction highlights the importance of understanding different cost classifications in manufacturing.