Question

Question 3: Cost terminology in manufacturing firms a) Direct materials include all materials and components only raw materials such as steel and glass only major materials and components Correct: Your answer is correct. Direct labor includes all production labor including supervisors and maintenance staff only managers who directly supervise the production process only hourly production workers (aka assembly workers) Correct: Your answer is correct. Manufacturing overhead includes only big items that cannot be traced (e.g., factory rent) only non-manufacturing costs only small items that are not worth tracing (e.g., glue, grease) both big items that cannot be traced (e.g., factory rent) and small items that are not worth tracing (e.g., glue, grease) Correct: Your answer is correct. b) Classify the following items as direct materials (DM), direct labor (DL), or manufacturing overhead (OH) for a car assembly plant: Rent for the factory building DL DM OH Correct: Your answer is correct. Cost of engines used in production DL DM OH Correct: Your answer is correct. Depreciation on production equipment DL DM OH Correct: Your answer is correct. Cost of lubricant used in production DL DM OH Correct: Your answer is correct. Production supervisor's salary DL DM OH Correct: Your answer is correct. Assembly workers' wages DL DM OH Correct: Your answer is correct.

Answer 1

1. a. Only major materials and components.

Only the major materials and components are include as direct materials because these are the materials that directly needed for production.

b. Only hourly production workers (aka assembly workers).

The direct labor has to be those people who are directly involved in production which in this case is the assembly workers. Managers and Supervisors are not integral so are not direct labor.

c. Both big items that cannot be traced (e.g., factory rent) and small items that are not worth tracing (e.g., glue, grease).

All other items involved in production should be included as manufacturing overheads including big items and small items that cannot be traced.

2.

Rent for the factory building ⇒ Manufacturing Overhead (OH).

Cost of engines used in production ⇒ Direct materials (DM).

Depreciation on production equipment ⇒ Manufacturing Overhead (OH).

Cost of lubricant used in production. ⇒ Manufacturing Overhead (OH).

Production supervisor's salary. ⇒ Manufacturing Overhead (OH).

Assembly workers' wages. ⇒ Direct Labor.