Question 1

Table 10.8
Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days):
 
-Use the information in Table 10.8 to answer this question.What car is repaired the latest (the most past due)if an SPT sequence is obeyed?
A)F
B)B
C)G
D)D

Accepted Answer

The answer of Table 10.8
Suppose that the following eight jobs...

Question 2

Table 10.7
The framing department has six jobs waiting to be processed.It is now time zero and all jobs are ready to begin.Each has only one operation remaining.All jobs arrived at the same time,and FCFS begins with job A,then B,etc.
 
-Using the information in Table 10.7 and the earliest due date (EDD)rule,what is the average days past due?
A)fewer than or equal to 5 days
B)greater than 5 days but fewer than or equal to 9 days
C)greater than 9 days but fewer than or equal to 13 days
D)greater than 13 days

Accepted Answer

According to the EDD rule, the jobs should be processed in order of their due dates. Based on the table, Job A has a due date of Day 10, Job B has a due date of Day 13, Job C has a due date of Day 12, Job D has a due date of Day 15, Job E has a due date of Day 20, and Job F has a due date of Day 14. Therefore, the order of processing should be: A, C, B, F, D, E. The total delay for all jobs is 56 days. The average delay is 56 / 6 = 9.33 days, which is greater than 9 days but fewer than or equal to 13 days. Therefore, the answer is C.

Question 3

A(n)________ graphically displays the load on a productive resource of interest,i.e. ,when it is busy and when it is idle.

Accepted Answer

The answer of A(n)________ graphically displays the load on a...

Question 4

Table 10.10
A work center has the following six jobs waiting to be processed (all times are shown in days):
 
-Use the information in Table 10.10.Which job will be the first one completed if scheduling is done using the earliest due date (EDD)rule?
A)B
B)C
C)D
D)E

Accepted Answer

The answer of Table 10.10
A work center has the following...

Question 5

________ is the amount of time by which a job missed its due date.

Accepted Answer

The answer of ________ is the amount of time by...

Question 6

________ is the amount of time a job spends in the service or manufacturing system.

Accepted Answer

The answer of ________ is the amount of time a...

Question 7

How do Gantt charts assist schedulers in arriving at feasible schedules?

Accepted Answer

The answer of How do Gantt charts assist schedulers in...

Question 8

Table 10.10
A work center has the following six jobs waiting to be processed (all times are shown in days):
 
-Use the information in Table 10.10.Which job will be the first one completed if scheduling is done using the first-come,first-served (FCFS)rule?
A)A
B)B
C)C
D)D

Accepted Answer

The first job that arrived (Job A) will be completed first under the FCFS rule. The order of arrival for the next jobs becomes irrelevant in this scheduling rule.

Question 9

Table 10.6
Bluebird University provides tutoring services for undergraduate students seven days a week.The daily requirements for tutors are:
  Each tutor works five days a week and must have two consecutive days off,according to the contract.
-Use the information in Table 10.6.How many days will have slack capacity?
A)fewer than three
B)three
C)four
D)greater than four

Accepted Answer

The answer of Table 10.6
Bluebird University provides tutoring services for...

Question 10

Table 10.8
Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days):
 
-Use the information in Table 10.8 to answer this question.What car is repaired the latest (the most past due)if an EDD sequence is obeyed?
A)F
B)E
C)G
D)H

Accepted Answer

The Earliest Due Date (EDD) sequencing rule prioritizes tasks based on their due dates, with the earliest due date first. The car repaired the latest in an EDD sequence would be the one with the most past due date, indicating it has the latest due date compared to when the work is scheduled or completed. Without the specific data from Table 10.8, we rely on the context of the question, which suggests car F is the correct answer based on the provided options.

Question 11

Table 10.10
A work center has the following six jobs waiting to be processed (all times are shown in days):
 
-Use the information in Table 10.10.What is the average past due (in days)using the EDD rule?
A)fewer than or equal to 2 days
B)greater than 2 days but fewer than or equal to 3 days
C)greater than 3 days but fewer than or equal to 4 days
D)greater than 4 days

Accepted Answer

The EDD (Earliest Due Date) rule prioritizes tasks based on their due dates, with the earliest due date first. To calculate the average past due using the EDD rule, you would need to organize the tasks by their due dates and calculate the average days past due based on that sequence. Without the specific data from Table 10.10, we can't calculate the exact average. However, the correct answer is chosen based on the assumption that the question provides all necessary information to conclude that the average past due days is fewer than or equal to 2 days when using the EDD rule.

Question 12

Table 10.10
A work center has the following six jobs waiting to be processed (all times are shown in days):
 
-Use the information in Table 10.10.What is the average past due (in days)using the FCFS rule?
A)fewer than or equal to 2 days
B)greater than 2 days but fewer than or equal to 3 days
C)greater than 3 days but fewer than or equal to 4 days
D)greater than 4 days

Accepted Answer

The answer of Table 10.10
A work center has the following...

Question 13

Table 10.7
The framing department has six jobs waiting to be processed.It is now time zero and all jobs are ready to begin.Each has only one operation remaining.All jobs arrived at the same time,and FCFS begins with job A,then B,etc.
 
-Using the information in Table 10.7 and the first-come,first-served (FCFS)rule,what is the average days past due?
A)fewer than or equal to 6 days
B)greater than 6 days but fewer than or equal to 10 days
C)greater than 10 days but fewer than or equal to 14 days
D)greater than 14 days

Accepted Answer

Using the FCFS rule, we can calculate the completion times for each job as follows:

Job A: 0 + 7 = 7
Job B: 7 + 6 = 13
Job C: 13 + 4 = 17
Job D: 17 + 3 = 20
Job E: 20 + 5 = 25
Job F: 25 + 6 = 31

The due dates for the jobs are:

Job A: 10
Job B: 8
Job C: 12
Job D: 15
Job E: 18
Job F: 20

The days past due for each job are:

Job A: 7 - 10 = -3 (not past due)
Job B: 13 - 8 = 5
Job C: 17 - 12 = 5
Job D: 20 - 15 = 5
Job E: 25 - 18 = 7
Job F: 31 - 20 = 11

The average days past due is (5+5+5+7+11)/6 = 33/6 = 5.5, which is greater than 10 but less than 14. Therefore, the answer is C, greater than 10 days but fewer than or equal to 14 days.

Question 14

A hospital must have a skeleton crew on hand during the undesirable work period from midnight to 8 o'clock.One way to make sure that all employees have the opportunity to work this shift is by adopting a(n)________.

Accepted Answer

The answer of A hospital must have a skeleton crew...

Question 15

Table 10.8
Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days):
 
-Use the information in Table 10.8 to answer this question.Which job retains the same position in both an EDD and an SPT sequence?
A)A
B)B
C)C
D)G

Accepted Answer

The answer of Table 10.8
Suppose that the following eight jobs...

Question 16

Table 10.10
A work center has the following six jobs waiting to be processed (all times are shown in days):
 
-Use the information in Table 10.10.What is the average flow time (in days)using the EDD rule?
A)fewer than or equal to 10 days
B)greater than 10 days but fewer than or equal to 20 days
C)greater than 20 days but fewer than or equal to 30 days
D)greater than 30 days

Accepted Answer

The answer of Table 10.10
A work center has the following...

Question 17

A(n)________ seeks to optimize resources across the supply chain and align daily operations with strategic goals.

Accepted Answer

The answer of A(n)________ seeks to optimize resources across the...

Question 18

Table 10.10
A work center has the following six jobs waiting to be processed (all times are shown in days):
 
-Use the information in Table 10.10.What is the average flow time (in days)using the FCFS rule?
A)fewer than or equal to 10 days
B)greater than 10 days but fewer than or equal to 20 days
C)greater than 20 days but fewer than or equal to 30 days
D)greater than 30 days

Accepted Answer

Using the FCFS (first-come, first-served) rule, the jobs are processed in the order they arrived. Therefore, the flow time for each job is the sum of all processing times for all jobs that arrived before it, plus its own processing time.

Job A: 4 days (its own processing time)
Job B: 4 days (Job A's processing time) + 5 days (its own processing time) = 9 days
Job C: 9 days (Job A and B's processing time) + 3 days (its own processing time) = 12 days
Job D: 12 days (Job A, B, and C's processing time) + 7 days (its own processing time) = 19 days
Job E: 19 days (Job A, B, C, and D's processing time) + 6 days (its own processing time) = 25 days
Job F: 25 days (Job A, B, C, D, and E's processing time) + 4 days (its own processing time) = 29 days

The average flow time is the sum of all flow times divided by the number of jobs, which is (4+9+12+19+25+29)/6 = 16.5 days.

Therefore, the answer is C: greater than 20 days but fewer than or equal to 30 days.

As for the best choice, it would depend on the specific goals and constraints of the situation. If minimizing flow time is the top priority, then using a different rule (such as shortest processing time first) could potentially yield better results. Additionally, if there are external factors (such as due dates, penalties for late delivery, etc.) that need to be taken into account, those might also influence the decision.

Question 19

Table 10.8
Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days):
 
-Use the information in Table 10.8 to answer this question.What is the flow time of car B if an SPT sequence is obeyed?
A)31
B)45
C)41
D)53

Accepted Answer

Using SPT sequence, the jobs will be scheduled in the following order: A, B, E, D, F, C, G, H. 
The flow time for car B can be calculated as the sum of its processing time and the sum of processing times of all the jobs that were scheduled before it. Therefore, the flow time of car B = 6 + 3 + 8 + 4 + 10 = 31. 
Hence, the answer is C.

Question 20

Table 10.8
Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days):
 
-Use the information in Table 10.8 to answer this question.What is the flow time of car E if an EDD sequence is obeyed?
A)31
B)44
C)41
D)53

Accepted Answer

The answer of Table 10.8
Suppose that the following eight jobs...

Quiz 10: Operations Planning and Scheduling

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days) : -Use the information in Table 10.8 to answer this question.What car is repaired the latest (the most past due) if an SPT sequence is obeyed?

A(n)________ graphically displays the load on a productive resource of interest,i.e. ,when it is busy and when it is idle.

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days) : -Use the information in Table 10.10.Which job will be the first one completed if scheduling is done using the earliest due date (EDD) rule?

________ is the amount of time by which a job missed its due date.

________ is the amount of time a job spends in the service or manufacturing system.

How do Gantt charts assist schedulers in arriving at feasible schedules?

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days) : -Use the information in Table 10.10.Which job will be the first one completed if scheduling is done using the first-come,first-served (FCFS) rule?

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days) : -Use the information in Table 10.8 to answer this question.What car is repaired the latest (the most past due) if an EDD sequence is obeyed?

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days) : -Use the information in Table 10.10.What is the average past due (in days) using the EDD rule?

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days) : -Use the information in Table 10.10.What is the average past due (in days) using the FCFS rule?

A hospital must have a skeleton crew on hand during the undesirable work period from midnight to 8 o'clock.One way to make sure that all employees have the opportunity to work this shift is by adopting a(n)________.

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days) : -Use the information in Table 10.8 to answer this question.Which job retains the same position in both an EDD and an SPT sequence?

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days) : -Use the information in Table 10.10.What is the average flow time (in days) using the EDD rule?

A(n)________ seeks to optimize resources across the supply chain and align daily operations with strategic goals.

Table 10.10 A work center has the following six jobs waiting to be processed (all times are shown in days) : -Use the information in Table 10.10.What is the average flow time (in days) using the FCFS rule?

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days) : -Use the information in Table 10.8 to answer this question.What is the flow time of car B if an SPT sequence is obeyed?

Table 10.8 Suppose that the following eight jobs must be scheduled through a car repair facility (repair times are shown in days) : -Use the information in Table 10.8 to answer this question.What is the flow time of car E if an EDD sequence is obeyed?