Exercise 2-4 A manufacturing plant produces printers. There are two production lines - one for ink-jet and one for laser printers. For purposes of this exercise, assume that the cost object is either an ink-jet or laser printer. Classify each of the following costs as follows: If product cost, is it a direct material, direct labour, or manufacturing overhead cost? Direct vs. Indirect Product vs. Period Variable vs. Fixed. The cost of the laser cartridge that goes into each laser printer. The cost of wages of the workers who assemble the printers. The cost of the insurance for the plant. The straight line depreciation expense of the assembly line machinery. The salary of the plant manager. The salary of the plant manager's secretary. The cost of snow removal outside the plant. The cost to clean the plant at night. The cost of glue. Glue is provided in bins on the factory floor. The cost of the assembly line supervisor. The cost of the advertising campaign for the printers.