16. The cost of a manufactured product generally consists of which of the following costs? a direct materials cost and factory overhead cost only b. direct labor cost and factory overhead cost only c. direct labor cost, direct materials cost, and factory overhead cost d. direct materials cost and direct labor cost only 17. Materials must have which two qualities in order to be classified as direct materials? a. They must be classified as both prime costs and conversion costs. b. They must be introduced into the process in both work-in-process inventories and finished goods inventories. c. They must be an integral part of the finished product, but can be an insignificant portion of the total product cost. d. They must be an integral part of the finished product and be a significant portion of the total product cost. 18. Which of the following is an example of direct materials cost for an automobile manufacturer? a. cost of oil lubricants for factory machinery b. cost of wages of assembly worker c. salary of production supervisor d. cost of interior upholstery 19. Which of the following is an example of direct labor cost for a cell phone manufacturer? a. cost of oil lubricants for factory machinery b. cost of wages of assembly worker c. salary of plant supervisor d. cost of phone components 20. Costs other than direct materials cost and direct labor cost incurred in the manufacturing process are classified as a. factory overhead cost b. miscellaneous expense c. product costs d. period cost 21. Which of the following is an example of a factory overhead cost? a. repair and maintenance cost on the administrative building b. factory heating and lighting cost c. insurance premiums on salespersons' automobiles d. president's salary Prime costs are a direct materials and factory overhead b. direct materials and direct labor c. direct labor and factory overhead d. period costs and factory overhead