A manufacturing facility needs the raw material (A, B, C and D) to undergo two processes, grinding and deburring. The estimated job time required (in hours) are detailed below.

Process	A	B	C	D
Grinding	4	7	9	5
Deburring	2	8	6	7

6. The Grinding should be finished before Deburring. Each shop has dedicated workers. Assuming that these are the only jobs in hand at the facility. Using Johnson's rule find the order in which the job should be carried out to minimize the make-span. a. = DBCA b. = BDAC C. = DCBA O d. = ACBD QUESTION 7 1 points The scheduling sequencing rule which always results in the lowest average flow (flow) time is the: critical ratio (CR). earliest due date (EDD). first come, first serve (FCFS). minimum slack time (MST). shortest processing time (SPT). QUESTION 8 1 pc Which of the following is NOT a basic step in the location decision process? Identify important search parameters and factors Gather information on appropriate sites Visit short-listed sites Evaluate the alternatives and make a selection Evaluate access to available technology. 1 pc QUESTION 9 Laser scanning of bar codes at retail checkout counters does not provide which of the following advantages? Increased speed and accuracy at checkout Continuous information on inventories Elimination of periodic counting of inventory Improved levels of customer service