Explain

11. A Gantt chart

a. Shows the critical path for a project

b. Is used for determining an optimal product mix

c. Shows only the activities along the critical path of a network

d. Does not necessarily show the critical path through a network

12. If a cost function behaves that the average costs per unit of output decline systematically as cumulative production

doubles, the cost function is referred to as a:

a. Parabolic curve c. Linear cost curve

b. Learning curve d. Growth curve

13. What is the cost factor that is LEAST likely to be affected by the learning curve?

a. Materials c. Indirect labor

b. Direct labor d. Variable overhead

14. A particular manufacturing job is subject to an estimated 90% learning curve. The first unit required 50 labor hours to

complete. What is the cumulative average time per unit after four units are completed?

a. 50 hours c. 40.5 hours

b. 45 hours d. 40 hours

15. Orange Company expects a 90% learning curve. The first batch of a new product required 100 hours. The second batch

should take:

a. 100 hours c. 80 hours

b. 90 hours d. 45 hours

16. Mango Company manufactured the first batch of product in 10 hours and the second batch in 4 hours. What learning

percentage occurred?

a. 100% c. 80%

b. 90% d. 70%

17. Kiwi Company used 30 hours to produce the first batch of units. The second batch took an additional 18 hours. How

many hours will the first four batches require?

a. 48 hours c. 96.2 hours

b. 76.8 hours d. 120.0 hours

18. The following information on the utilization of a new software package was collected:

Number of tasks Total time to perform all tasks Average time to perform each task

1 10 minutes 10 minutes

2 18 minutes 9 minutes

4 32.4 minutes 8.1 minutes

If this learning effect continues, what is the average time to perform each of the first eight (8) tasks?

a. 6.83 minutes c. 7.75 minutes

b. 7.29 minutes d. 8.10 inutes