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9. Direct labor costs would includes wages paid to all the following except a) Machine operators b) Assembly line workers c) Janitors d) Brick layers 10. Indirect labor costs would indclude wages paid to the following except a) Machine operators b) Material handlers c) Store keepers d) Fork lift operators 11. Overhead consists of all the following except a) Indirect materials b) Direct labor c) Store keepers 12. Prime cost comprises the following combination of costs a) Direct materials and factory overhead b) Direct labor and factory overhead c) Direct material direct labor and direct expense d) None of these 17. The most important element of cost is a) Material b) Labor c) Over head 18. Costing is a technique of a) Inventory control b) Calculation of cost c) Ascertainment of cost 19. Buffer stock of material means: a) b) c) Maximum stock of material Minimum stock of material Average stock of material 20. Direct cost clearly be a) Identified b) Apportioned c) Allocated with a product