using johnson's rule, what is the idle time at center 2 ? job D, e, f, g center 1: 13, 23, 16, 20 center 2: 14, 13, 18, 17

Which job sequence would be used if ordered using the rule "Shortest Job First"?   Group of answer choices a. 1,2,3,4 b. 4,3,1,2 c. 2,1,3,4 d. 2,3,4,1 e. 2,3,1,4

QUESTION #1 The figure shows the manufacturing processes, weekly market demands, unit revenues, and raw material requirements for two products. The products pass through a series of operations indicated by the circles. The products are manufactured on five machines. The machine assignments are shown by letters within the operation circles. The processing time for each operation is shown in minutes per unit adjacent to the circle. All setup times are zero. Operation E is an assembly operation that combines a unit from each of its two inputs to make the finished product 2. There are 5000 minutes per week available on each machine type. There is one of each type of machine. a. Use the theory of constraints to identify the bottlenecks in the system. Show all work used to find the bottleneck. b. For the bottlenecks discovered find the best product mix of P1 and P2. Show in your answer the rational for selecting the product mix. c. What is the maximum total profit per week? Product 1 Market…

QUESTION #4 Four delivery trucks are in a queue at a Tool Company with only one service bay. The trucks are identified by the sequence in which they arrived at the Company. Assume the time is 10:00 a.m. The table shows the times necessary to unload each vehicle and the periods when the commodities they contain are expected in the factory. Determine the schedules that result for each of the rules SPE, CR EDD, and FSFC. In each case compute the average tardiness, the number of tardy jobs, and mean flow time. Truck 1 2 3 4 5 Unloading Time (minutes) 23 16 39 12 30 Time Material is Due 10:15 AM 10:40 AM 10:55 AM 10:30 AM 10:40 AM

Question 33  The processing times of five jobs are given as follows: Job Processing time (minutes) A 20 B 60 C 30 D 75 E 15 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 200 minutes. What is the average inventory if the jobs are processed in shortest processing time (SPT) order? Group of answer choices 3.00 2.92 1.97 2.20

Finite capacity scheduling   Question 20 options:   schedules jobs through a number of work centers, each with one or more machines.   All of these choices are correct.   is an extension of the theory of constraints.   requires that jobs are scheduled whole (cannot be split).

Which are the Tools of Shop-Floor Control?

Question 32  The processing times of four jobs are given as follows: Job Processing time (minutes) A 10 B 30 C 16 D 24 Assume the jobs arrived in alphabetical order of the job name and no other job arrives in the next 70 minutes. What is the average flow time in minutes if the jobs are processed in shortest processing time (SOP) order? Group of answer choices 166 41.5 38 20.5

Practice Problem #1 A process consists of 30 activities E task time = 42 min/unit Longest activity = 2.4 min Shortest activity = 0.3 min Available Time, A = 480 min/day (A) Max cycle time = Min cycle time = YC) If cycle time = 42 min, R = (D) If cycle time = 2.4 min, R = (E) If number of workstations, N = 10, and cycle time is 4.2 min/unit %3D Output Rate, R = (F) Assembly-line Efficiency =

Part D) I would like to double check my answer