Question 1

Which of the following is an aid used to monitor jobs in progress?
A)a Gantt load chart
B)the assignment method
C)a Gantt schedule chart
D)Johnson's rule
E)a Gantt progress chart

Accepted Answer

The answer of Which of the following is an aid...

Question 2

________ is the assignment of jobs to work or processing centers.

Accepted Answer

The answer of ________ is the assignment of jobs to...

Question 3

A work center is interested in limiting work-in-process by not allowing production to start again until the current batch is finished.The best solution most likely involves:
A)MRP.
B)ConWIP cards.
C)Gantt charts.
D)Johnson's rule.
E)the assignment method.

Accepted Answer

ConWIP (Constant Work-In-Process) cards are used to limit the amount of work-in-process inventory by not allowing production to start on a new batch until the current batch is finished. This can help improve flow and reduce lead times. MRP, Gantt charts, Johnson's rule, and the assignment method are not directly related to limiting work-in-process.

Question 4

The assignment method provides an optimum,one-to-one assignment of jobs to resources.

Accepted Answer

The assignment method is a mathematical technique used for solving problems in which a number of resources are to be assigned to an equal number of jobs. It provides an optimum, one-to-one assignment of jobs to resources. Therefore, the statement is true.

Question 5

There are two jobs to be assigned to two workers.The profit for worker A on job 1 is $5 and on job 2 is $8.The profit for worker B on job 1 is $10 and on job 2 is $12.How should the work be divided using the assignment method?
A)worker A assigned to job 1 and worker B assigned to job 2
B)worker A assigned to job 2 and worker B assigned to job 1
C)worker A gets both jobs 1 and 2
D)worker B gets both jobs 1 and 2
E)unable to determine

Accepted Answer

Using the assignment method, we can create a table with the profits for each worker on each job:

|   | Job 1 | Job 2 |
|---|-------|-------|
| A |   5   |   8   |
| B |  10   |  12   |

To assign the work, we start by assigning each worker to the job that offers them the highest profit. In this case, worker A would be assigned to job 2 (with a profit of $8) and worker B would be assigned to job 1 (with a profit of $10).

Therefore, the best choice is B.

Question 6

A Gantt load chart shows the loading and idle time of several departments,machines,or facilities.

Accepted Answer

This statement is true. A Gantt load chart is used to show the loading and idle time of different departments, machines, or facilities in a graphical form.

Question 7

If job 5 takes 3,4 or 5 hours to be completed by workers A,B,and C,respectively,what would the row values for job 5 be after performing Step 1A of the assignment method?
A)3,4,5
B)8,9,10
C)0,1,2
D)6,7,8
E)1,4/3,5/3

Accepted Answer

Step 1A of the assignment method involves subtracting the smallest value in each row from all the values in that row. The smallest value for job 5 is 3, so subtracting 3 from each value gives 0, 1, and 2.

Question 8

Explain,in your own words,how backward scheduling and forward scheduling differ.

Accepted Answer

The answer of Explain,in your own words,how backward scheduling and...

Question 9

Gantt charts are useful for scheduling jobs,but not for loading them.

Accepted Answer

Gantt charts can be helpful in both scheduling and loading jobs. They provide a visual representation of tasks and their timeline, allowing for easy identification of overlapping or conflicting schedules. Additionally, Gantt charts can help with resource allocation, allowing for efficient utilization of available resources.

Question 10

What is a method of input-output control that uses a system of cards to limit the amount of work at a work center and also to control lead time and monitor backlog?
A)the assignment method
B)backward scheduling
C)forward scheduling
D)ConWIP cards
E)level material use

Accepted Answer

ConWIP cards (Continuous Work-in-Process cards) are a method of input-output control that use a system of cards to limit the amount of work at a work center and also to control lead time and monitor backlog. These cards are used in a Just-in-Time (JIT) production system to ensure that work centers only produce what is needed when it is needed, thus reducing waste and improving efficiency. The cards limit the amount of work that can be in process at any given time, which helps control lead time for each job and monitor backlog.

Question 11

The assignment method is:
A)a method to highlight overloads in a given work center.
B)a computerized method of determining appropriate tasks for an operation.
C)a form of linear programming for optimally assigning tasks or jobs to resources.
D)the same thing as the Gantt schedule chart.
E)a method for achieving a balance between forward and backward scheduling.

Accepted Answer

The assignment method is a form of linear programming aimed at assigning tasks or jobs to resources optimally. It involves determining the optimal way of assigning tasks or jobs to resources, such as machines or workers, based on certain criteria and constraints. It is not related to Gantt charts or achieving a balance between forward and backward scheduling.

Question 12

The constant work-in-process (ConWIP)card aids input-output control by limiting the amount of work in a work center.

Accepted Answer

The ConWIP card is used to limit the amount of work in a work center and facilitate input-output control.

Question 13

Three jobs are to be assigned to three machines.Cost for each job-machine combination appears in the table below.Perform the first two steps of the assignment method (subtract the smallest number in each row and subtract the smallest number in each column;then cover with straight lines).At this point in the problem-solving process: 
A)the row for Job 1 contains the values 5,6,and 0.
B)calculations are complete,and the problem is ready for an optimal set of assignments.
C)the column for Machine B indicates that it should be retired.
D)Job 1 should be performed on Machine B.
E)Job 1 should be performed on Machine A.

Accepted Answer

The answer of Three jobs are to be assigned to...

Question 14

If an assignment problem consists of 5 workers and 4 projects:
A)one worker will not get a project assignment.
B)one project will be assigned two workers.
C)the fifth worker will split time among the four projects.
D)one project will not get a worker assigned.
E)The problem cannot be solved by assignment method.

Accepted Answer

The answer of If an assignment problem consists of 5...

Question 15

Which of the following is NOT required to be known in order to schedule process-focused facilities?
A)the sequence of work
B)which workers are assigned to each work center
C)the time required for each item
D)the capacity of each work center
E)the availability of each work center

Accepted Answer

While it is important to know which workers are assigned to each work center for staffing purposes, it is not necessary information for scheduling process-focused facilities. The other options (sequence of work, time required for each item, capacity of each work center, and availability of each work center) are all critical factors in the scheduling process.

Question 16

A work center had actual input of 280 hours and actual output of 270 hours.What is the change in backlog?
A)10
B)-10
C)0
D)1.037
E)Unable to determine with the given information

Accepted Answer

The change in backlog is calculated as the difference between actual input and actual output. Here, the input is 280 hours and the output is 270 hours, so the change in backlog is 280 - 270 = 10 hours.

Question 17

If an assignment problem consists of 6 workers and 7 projects:
A)one worker will not get a project assignment.
B)one worker will be assigned two projects.
C)each worker will contribute work toward the seventh project.
D)one project will not get a worker assigned.
E)The problem cannot be solved by assignment method.

Accepted Answer

Since there are only 6 workers and 7 projects, one project will not get a worker assigned. This means that the problem cannot be solved by the assignment method because there will always be an incomplete assignment.

Question 18

What is a scheduling technique used to achieve an optimum,one-to-one matching of tasks and resources?
A)the assignment method
B)Johnson's rule
C)the CDS algorithm
D)the appointment method
E)the reservation method

Accepted Answer

The assignment method is a scheduling technique that is specifically designed for achieving an optimum, one-to-one matching of tasks and resources. It involves creating a matrix of tasks and resources, and then using a series of steps that take into account the resource requirements and task durations to determine the best match. This technique is particularly useful when dealing with complex projects that involve multiple tasks and resources, and can help ensure that project goals are achieved efficiently and effectively. Johnson's rule is a scheduling technique that is more commonly used for sequencing tasks, rather than matching them with resources. The CDS algorithm, appointment method, and reservation method are all scheduling techniques that are more focused on managing appointments and resources within a specific time period, rather than achieving an optimum, one-to-one matching of tasks and resources.

Question 19

A work center had planned outputs of 10,15,13,and 20 hours with actual outputs of 12,14,13,and 18 hours.What is the cumulative deviation in output?
A)0
B)1
C)-1
D)58
E)Unable to determine with the given information

Accepted Answer

Cumulative deviation is the difference between planned and actual outputs summed over all work centers.

Planned outputs = 10 + 15 + 13 + 20 = 58 hours 
Actual outputs = 12 + 14 + 13 + 18 = 57 hours

Cumulative deviation = Planned outputs - Actual outputs 
= 58 - 57 = 1

Therefore, the answer is (C) -1.

Question 20

Compare short-term scheduling at process-focused,repetitive,and product-focused facilities.

Accepted Answer

The answer of Compare short-term scheduling at process-focused,repetitive,and product-focused facilities....

Quiz 15: Short-Term Scheduling

Which of the following is an aid used to monitor jobs in progress?

________ is the assignment of jobs to work or processing centers.

A work center is interested in limiting work-in-process by not allowing production to start again until the current batch is finished.The best solution most likely involves:

The assignment method provides an optimum,one-to-one assignment of jobs to resources.

There are two jobs to be assigned to two workers.The profit for worker A on job 1 is $5 and on job 2 is $8.The profit for worker B on job 1 is $10 and on job 2 is $12.How should the work be divided using the assignment method?

A Gantt load chart shows the loading and idle time of several departments,machines,or facilities.

If job 5 takes 3,4 or 5 hours to be completed by workers A,B,and C,respectively,what would the row values for job 5 be after performing Step 1A of the assignment method?

Explain,in your own words,how backward scheduling and forward scheduling differ.

Gantt charts are useful for scheduling jobs,but not for loading them.

What is a method of input-output control that uses a system of cards to limit the amount of work at a work center and also to control lead time and monitor backlog?

The assignment method is:

The constant work-in-process (ConWIP)card aids input-output control by limiting the amount of work in a work center.

If an assignment problem consists of 5 workers and 4 projects:

Which of the following is NOT required to be known in order to schedule process-focused facilities?

A work center had actual input of 280 hours and actual output of 270 hours.What is the change in backlog?

If an assignment problem consists of 6 workers and 7 projects:

What is a scheduling technique used to achieve an optimum,one-to-one matching of tasks and resources?

A work center had planned outputs of 10,15,13,and 20 hours with actual outputs of 12,14,13,and 18 hours.What is the cumulative deviation in output?

Compare short-term scheduling at process-focused,repetitive,and product-focused facilities.