Deck 8: Supplement: Job Scheduling and Vehicle Routing and Material Flow Analysis and Facility Layouts

Question 1

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Calculate the critical ratio for Job 3.

A)2.0
B)2.6
C)2.5
D)1.83
E)1.13

Answer 1

2.5

Question 2

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Using the critical ratio (CR) rule, determine the processing order.

A)Processing order is 1,2,3,4,5
B)Processing order is 5,4,1,3,2
C)Processing order is 2,3,1,4,5
D)Processing order is 5,4,3,2,1
E)Processing order is 3,1,2,4,5

Answer 2

Processing order is 5,4,1,3,2

Question 3

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the makespan.

A)1.4 hrs
B)6.6 hs
C)11.6 hrs
D)15 hrs
E)16 hrs

Answer 3

16 hrs

Question 4

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the average flow time.

A)1.4 hrs
B)6.6 hs
C)11.2 hrs
D)15 hrs
E)18 hrs

Question 5

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the average queue time.

A)1.4 hrs
B)5.2 hs
C)11.6 hrs
D)15 hrs
E)18 hrs

Question 6

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the average tardiness.

A)0.8 hrs
B)6.6 hs
C)11.6 hrs
D)15 hrs
E)18 hrs

Question 7

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split


-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the average lateness.

A)-0.4 hrs
B)6.6 hs
C)11.6 hrs
D)15 hrs
E)18 hrs

Question 8

Given the following information, Use a Gantt chart to schedule the jobs in order 1, 2, 3 and assume that jobs cannot be split. What is the makespan?

A)12
B)9
C)14
D)3
E)Need additional information to compute

Question 9

William is considering a dispatch rule to satisfy more physicians. William requested that each physician put a desired completion time on each request for blood testing. To investigate the effects of changing the dispatch rules, William decides to take the first five requests for blood work from one of the technicians and analyze job completion under various scheduling rules. The following table shows the time to complete blood work on each sample and the time when the physician has requested that it to be complete.


-Using the processing order as per the critical ratio (CR) rule, determine the average tardiness.

A)96 minutes
B)58 minutes
C)54 minutes
D)66 minutes
E)110 minutes

Question 10

William is considering a dispatch rule to satisfy more physicians. William requested that each physician put a desired completion time on each request for blood testing. To investigate the effects of changing the dispatch rules, William decides to take the first five requests for blood work from one of the technicians and analyze job completion under various scheduling rules. The following table shows the time to complete blood work on each sample and the time when the physician has requested that it to be complete.


-Using the processing order as per the shortest process time (SPT), determine the average tardiness.

A)96 minutes
B)58 minutes
C)54 minutes
D)66 minutes
E)110 minutes

Question 11

William is considering a dispatch rule to satisfy more physicians. William requested that each physician put a desired completion time on each request for blood testing. To investigate the effects of changing the dispatch rules, William decides to take the first five requests for blood work from one of the technicians and analyze job completion under various scheduling rules. The following table shows the time to complete blood work on each sample and the time when the physician has requested that it to be complete.


-Using the processing order as per the earliest due date (EDD), determine the average tardiness.

A)96 minutes
B)58 minutes
C)54 minutes
D)66 minutes
E)110 minutes

Question 12

William is considering a dispatch rule to satisfy more physicians. William requested that each physician put a desired completion time on each request for blood testing. To investigate the effects of changing the dispatch rules, William decides to take the first five requests for blood work from one of the technicians and analyze job completion under various scheduling rules. The following table shows the time to complete blood work on each sample and the time when the physician has requested that it to be complete.


-Using the processing order as per the first-come-first-served (FCFS), determine the average tardiness.

A)96 minutes
B)58 minutes
C)54 minutes
D)66 minutes
E)110 minutes

Question 13

William is considering a dispatch rule to satisfy more physicians. William requested that each physician put a desired completion time on each request for blood testing. To investigate the effects of changing the dispatch rules, William decides to take the first five requests for blood work from one of the technicians and analyze job completion under various scheduling rules. The following table shows the time to complete blood work on each sample and the time when the physician has requested that it to be complete.


-Using the processing order as per the minimum slack per operation (MINSOP), determine the average tardiness.

A)96 minutes
B)58 minutes
C)54 minutes
D)66 minutes
E)110 minutes

Question 14

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1.


-For the paired combinations of delivery nodes 1, 2 and 3, calculate the savings.

A)48
B)3
C)23
D)37
E)43

Question 15

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1.


-For the paired combinations of delivery nodes 1, 2 and 4, calculate the savings.

A)48
B)3
C)23
D)37
E)43

Question 16

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1.


-For the paired combinations of delivery nodes 1, 3 and 4, calculate the savings.

A)48
B)3
C)23
D)37
E)43

Question 17

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1.


-Based on the savings computed for the paired combinations, which one represents the most acceptable delivery route for the network of customers?

A)1-3-2-4-1
B)1-2-4-3-1
C)1-3-4-2-1
D)1-2-3-4-1
E)1-4-2-3-1

Question 18

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5.


-For the paired combinations of delivery nodes 1, 2 and 5, calculate the savings.

A)26
B)40
C)73
D)11
E)47

Question 19

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5.


-For the paired combinations of delivery nodes 1, 2 and 3, calculate the savings.

A)26
B)40
C)73
D)11
E)47

Question 20

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5.


-For the paired combinations of delivery nodes 1, 2 and 4, calculate the savings.

A)26
B)40
C)73
D)11
E)47

Question 21

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5.


-For the paired combinations of delivery nodes 1, 3 and 4, calculate the savings.

A)26
B)40
C)73
D)11
E)47

Question 22

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5.


-For the paired combinations of delivery nodes 1, 4 and 5, calculate the savings.

A)26
B)40
C)73
D)11
E)47

Question 23

Use the Clark and Wright savings heuristic for the following network of customers, starting from location 1. Assume that any diagonal trip must pass through location 5.


-Based on the savings computed for the paired combinations, which one represents the most acceptable delivery route for the network of customers?

A)1-2-5-3-4-1
B)1-4-3-5-2-1
C)1-2-3-5-4-1
D)1-4-5-2-3-1
E)1-2-3-4-5-1

Question 24

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 2 and 3.

A)44
B)85
C)82
D)76
E)51

Question 25

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 2 and 4.

A)99
B)22
C)82
D)76
E)51

Question 26

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 2 and 5.

A)99
B)85
C)4
D)76
E)51

Question 27

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 3 and 4.

A)79
B)85
C)82
D)34
E)51

Question 28

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 4 and 5.

A)79
B)85
C)82
D)76
E)27

Question 29

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Using the Clark and Wright savings heuristic, calculate the savings for the paired combinations of delivery nodes 1, 3 and 5.

A)9
B)85
C)82
D)76
E)51

Question 30

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-The 10 ton truck can handle the tour with the largest savings. The tour is:

A)1-2-4-1
B)1-4-5-1
C)1-2-3-1
D)1-3-4-1
E)1-2-5-1

Question 31

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Based on the answer for question 30, the 8 ton truck will handle which tour?

A)1-2-4-1
B)1-4-5-1
C)1-2-3-1
D)1-3-4-1
E)1-2-5-1

Question 32

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Based on the answer for questions 30 and 31, what is the total tour mileage?

A)155 miles
B)158 miles
C)122 miles
D)164 miles
E)129 miles

Question 33

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Route Improvement alternatives: what would the total mileage be if the 10 ton truck handles the tour 1-3-4-1 and the 8 ton truck handles the tour 1-2-5-1?

A)155 miles
B)158 miles
C)122 miles
D)164 miles
E)150 miles

Question 34

Use the Cluster-first-route-second heuristic for two trucks (10 ton and 8 ton capacities) and the following network of customers with their shipping requirements, starting from location 1.


-Route Improvement alternatives: what would the total mileage be if the 10 ton truck handles the tour 1-2-4-1 and the 8 ton truck handles the tour 1-3-5-1?

A)155 miles
B)158 miles
C)122 miles
D)169 miles
E)150 miles

Question 35

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the number of delivery vehicles needed.

A)1
B)2
C)3
D)4
E)5

Question 36

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the delivery schedule of Vehicle 1.

A)1 $\rightarrow$ 4 $\rightarrow$ 6 $\rightarrow$ 7 $\rightarrow$ 10 $\rightarrow$ 11
B)2 $\rightarrow$ 3 $\rightarrow$ 9 $\rightarrow$ 12
C)5 $\rightarrow$ 8
D)2 $\rightarrow$ 3 $\rightarrow$ 6 $\rightarrow$ 12
E)1 $\rightarrow$ 4 $\rightarrow$ 7 $\rightarrow$ 11

Question 37

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the delivery schedule of Vehicle 2.

A)1 $\rightarrow$ 4 $\rightarrow$ 6 $\rightarrow$ 7 $\rightarrow$ 10 $\rightarrow$ 11
B)2 $\rightarrow$ 3 $\rightarrow$ 9 $\rightarrow$ 12
C)5 $\rightarrow$ 8
D)2 $\rightarrow$ 3 $\rightarrow$ 6 $\rightarrow$ 12
E)1 $\rightarrow$ 4 $\rightarrow$ 7 $\rightarrow$ 11

Question 38

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the delivery schedule of Vehicle 3.

A)1 $\rightarrow$ 4 $\rightarrow$ 6 $\rightarrow$ 7 $\rightarrow$ 10 $\rightarrow$ 11
B)2 $\rightarrow$ 3 $\rightarrow$ 9 $\rightarrow$ 12
C)5 $\rightarrow$ 8
D)2 $\rightarrow$ 3 $\rightarrow$ 6 $\rightarrow$ 12
E)1 $\rightarrow$ 4 $\rightarrow$ 7 $\rightarrow$ 11

Question 39

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the start time for Vehicle 1.

A)8:10 AM
B)9:45 AM
C)8:15 AM
D)8:00 AM
E)7:55 AM

Question 40

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the finish time for Vehicle 1.

A)1:45 PM
B)3:40 PM
C)4:00 PM
D)3:00 PM
E)2:45 PM

Question 41

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the start time for Vehicle 2.

A)8:10 AM
B)9:45 AM
C)8:15 AM
D)8:00 AM
E)7:55 AM

Question 42

Assuming that the customers are ranked in proximity to one another (ie., customer 4 is closer to customer 3 than customer 5 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 15 minutes.


-Determine the finish time for Vehicle 2.

A)1:45 PM
B)3:40 PM
C)4:00 PM
D)3:00 PM
E)2:45 PM

Question 43

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the number of delivery vehicles needed.

A)1
B)2
C)3
D)4
E)5

Question 44

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the delivery schedule of Vehicle 1.

A)1 $\rightarrow$ 3 $\rightarrow$ 5 $\rightarrow$ 8
B)6 $\rightarrow$ 7 $\rightarrow$ 8
C)2 $\rightarrow$ 4 $\rightarrow$ 7 $\rightarrow$ 09
D)1 $\rightarrow$ 3 $\rightarrow$ 5 $\rightarrow$ 9
E)2 $\rightarrow$ 4 $\rightarrow$ 10

Question 45

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the delivery schedule of Vehicle 2.

A)1 $\rightarrow$ 3 $\rightarrow$ 5 $\rightarrow$ 8
B)6 $\rightarrow$ 7 $\rightarrow$ 8
C)2 $\rightarrow$ 4 $\rightarrow$ 7 $\rightarrow$ 9
D)1 $\rightarrow$ 3 $\rightarrow$ 5 $\rightarrow$ 9
E)2 $\rightarrow$ 4 $\rightarrow$ 10

Question 46

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the delivery schedule of Vehicle 3.

A)1 $\rightarrow$ 3 $\rightarrow$ 5 $\rightarrow$ 8
B)6 $\rightarrow$ 7 $\rightarrow$ 8
C)2 $\rightarrow$ 4 $\rightarrow$ 7 $\rightarrow$ 9
D)1 $\rightarrow$ 3 $\rightarrow$ 5 $\rightarrow$ 9
E)2 $\rightarrow$ 4 $\rightarrow$ 10

Question 47

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the start time for Vehicle 1.

A)7:30 AM
B)7:45 AM
C)9:15 AM
D)9:40 AM
E)10:15 AM

Question 48

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the start time for Vehicle 2.

A)7:30 AM
B)7:45 AM
C)9:15 AM
D)9:40 AM
E)10:15 AM

Question 49

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the finish time for Vehicle 2.

A)12:40 PM
B)2:00 PM
C)2:40 PM
D)3:30 PM
E)11:30 AM

Question 50

Assuming that the customers are ranked in proximity to one another (ie., customer 5 is closer to customer 6 than customer 7 is), use the concurrent scheduler approach to assign deliveries to vehicles such that no deliveries are late and driving distance is minimized. Assume that drive time to each customer is 30 minutes.


-Determine the finish time for Vehicle 3.

A)12:40 PM
B)2:00 PM
C)2:40 PM
D)3:30 PM
E)11:30 AM

Question 51

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-What should their takt time be?

A)64 seconds
B)72 seconds
C)48 seconds
D)60 seconds
E)Need more information to answer the question

Question 52

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Calculate the minimum number of assembly line work centers.

A)7
B)6
C)5
D)4
E)3

Question 53

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Considering there are 4 work centers for the assembly line, what is the efficiency?

A)78.13%
B)62.50%
C)52.08%
D)100%
E)Need more information to answer the question

Question 54

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Considering there are four work centers for the assembly line and assuming 1 worker per work center, calculate the total labor work time.

A)20 hours per day
B)25 hours per day
C)30 hours per day
D)45 hours per day
E)Need more information to answer the question

Question 55

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Considering there are four work centers for the assembly line and assuming 1 worker per work center, calculate the idle time per day.

A)12 hours per day
B)2 hours per day
C)4 hours per day
D)7 hours per day
E)Need more information to answer the question

Question 56

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Operations managers design a line that contains 5 stations. What is the efficiency?

A)78.13%
B)62.50%
C)52.08%
D)100%
E)Need more information to answer the question

Question 57

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Operations managers design a line that contains 5 stations. What is the percentage of idle time?

A)100%
B)47.92%
C)37.50%
D)21.87%
E)Need more information to answer the question

Question 58

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Assuming 1 work center per task, what is the minimum takt time?

A)18 seconds
B)30 seconds
C)32 seconds
D)48 seconds
E)Need more information to answer the question

Question 59

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Assuming 1 work center per task, what is the maximum output per day?

A)900 units per day
B)960 units per day
C)1,600 units per day
D)600 units per day
E)Need more information to answer the question

Question 60

Assume a facility is open 8 hours a day and requires an output of 600 units a day. The following tasks must be arranged as an assembly line:


-Assuming 1 work center per task, what is the corresponding efficiency for the maximum output per day?

A)83.33%
B)78.13%
C)62.50%
D)52.08%
E)Need more information to answer the question

Question 61

The process design team at a medical device manufacturer has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 8 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-What should their takt time be?

A)60 seconds
B)72 seconds
C)50 seconds
D)40 seconds
E)Need more information to answer the question

Question 62

The process design team at a medical device manufacturer has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 8 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-Operations managers and process engineers design a line that contains 7 stations. What is the efficiency?

A)80.20%
B)62.40%
C)85.70%
D)70.44%
E)Need more information to answer the question

Question 63

The process design team at a medical device manufacturer has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 8 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-Operations managers and process engineers design a line that contains 7 stations. What is the percentage of idle time?

A)29.56%
B)19.80%
C)37.60%
D)14.30%
E)Need more information to answer the question

Question 64

The process design team at a contract manufacturer in Thailand has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 7.5 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-What should their takt time be?

A)50 seconds
B)55.5 seconds
C)60 seconds
D)67.5 seconds
E)Need more information to answer the question

Question 65

The process design team at a contract manufacturer in Thailand has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 7.5 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-Operations managers and process engineers design a line that contains 6 stations. What is the efficiency?

A)57.41%
B)76.54%
C)65.61%
D)91.85%
E)Need more information to answer the question

Question 66

The process design team at a contract manufacturer in Thailand has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 7.5 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-Operations managers and process engineers design a line that contains 6 stations. What is the percentage of idle time?

A)23.46%
B)42.59%
C)34.39%
D)8.15%
E)Need more information to answer the question

Question 67

The process design team at a contract manufacturer in Thailand has broken an assembly process into 8 basic steps, each with a required time and predecessor, as shown in the table. There are 7.5 productive hours available in a day, and the manufacturer wishes to produce 400 units.


-The managers decide to balance the line by assigning tasks to workstations to fill up as much task time as possible. Break ties by assigning the longest task first. What task(s) should be assigned at the third workstation?

A)D
B)B, E
C)F
D)C, E, and G
E)Need more information to answer the question

Question 68

A tier-two supplier needs to produce 300 coffee pots per 8 hour day. The discrete tasks required to produce a coffee pot have been identified, timed in seconds, and ordered as indicated in the table.


-What should their takt time be?

A)96 seconds
B)90 seconds
C)80 seconds
D)60 seconds
E)Need more information to answer the question

Question 69

A tier-two supplier needs to produce 300 coffee pots per 8 hour day. The discrete tasks required to produce a coffee pot have been identified, timed in seconds, and ordered as indicated in the table.


-The process engineers design a line that contains 5 stations. What is the efficiency?

A)52.73%
B)60.27%
C)70.31%
D)84.38%
E)Need more information to answer the question

Question 70

A tier-two supplier needs to produce 300 coffee pots per 8 hour day. The discrete tasks required to produce a coffee pot have been identified, timed in seconds, and ordered as indicated in the table.


-Operations managers and process engineers design a line that contains 5 stations. What is the percentage of idle time?

A)29.69%
B)15.62%
C)39.73%
D)47.27%
E)Need more information to answer the question

Question 71

The table depicts an assembly line that has been balanced with a task time of 2 minutes.


-What is the percentage of idle time of this balance?

A)5%
B)10%
C)15%
D)20%
E)Need more information to answer the question

Question 72

The table depicts an assembly line that has been balanced with a task time of 2 minutes.


-What is the efficiency of this balance?

A)80%
B)85%
C)90%
D)95%
E)Need more information to answer the question

Question 73

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-What should their takt time be?

A)96 seconds
B)88 seconds
C)72 seconds
D)64 seconds
E)Need more information to answer the question

Question 74

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Calculate the minimum number of assembly line work centers.

A)7
B)6
C)5
D)4
E)3

Question 75

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Considering there are 7 work centers for the assembly line, what is the efficiency?

A)50.63%
B)9.6%
C)90.40%
D)100%
E)Need more information to answer the question

Question 76

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Considering there are 7 work centers for the assembly line and assuming 1 worker per work center, calculate the total labor work time.

A)56 hours per day
B)50.62 hours per day
C)45.63 hours per day
D)40 hours per day
E)Need more information to answer the question

Question 77

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Considering there are 7 work centers for the assembly line and assuming 1 worker per work center, calculate the idle time per day.

A)5.38 hours per day
B)10.37 hours per day
C)16 hours per day
D)32 hours per day
E)Need more information to answer the question

Question 78

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Process engineers design a line that contains 8 stations. What is the efficiency?

A)63.28%
B)70.31%
C)90.40%
D)79.10%
E)Need more information to answer the question

Question 79

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Process engineers design a line that contains 8 stations. What is the percentage of idle time?

A)29.69%
B)36.72%
C)20.90%
D)9.60%
E)Need more information to answer the question

Question 80

For the Buehler Bakery, the desired output for a 8 hour workday is 450 units. The discrete tasks required to produce the product have been identified, timed in seconds, and ordered as indicated in the table.


-Assuming 1 work center per task, what is the minimum takt time?

A)15 seconds
B)80 seconds
C)60 seconds
D)64 seconds
E)Need more information to answer the question