Question 1

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

The method described is known as ConWIP (Controlled Work-in-Process) and involves the use of cards to limit the amount of work at a work center, control lead time, and monitor backlog. This method helps to ensure that work is flowing smoothly through the system, reducing bottlenecks and improving overall efficiency.

Question 2

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 answer of A work center had actual input of...

Question 3

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 4

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 5

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 = ∑(Actual output - Planned output)
= (12-10) + (14 - 15) + (13 - 13) + (18 - 20)
= 2 - 1 + 0 - 2
= -1

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 a graphical representation that shows the loading and idle time of different departments, machines, or facilities over a specific time period. It helps in scheduling and planning the workflow efficiently.

Question 7

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 create a table:

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

We find the minimum value in each row and subtract it from all the values in that row. This gives us the reduced matrix:

|          | Job 1 | Job 2 |
|----------|-------|-------|
| Worker A |  $0   |  $3   |
| Worker B |  $0  |  $2   |

We find the minimum value in each column and subtract it from all the values in that column. This gives us the final reduced matrix:

|          | Job 1 | Job 2 |
|----------|-------|-------|
| Worker A |  $0   |  $1   |
| Worker B |  $0  |  $0   |

Looking at the final matrix, we see that worker A should be assigned to job 2 and worker B should be assigned to job 1, since these are the only cells with a zero. Therefore, the best choice is B.

Question 8

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 9

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

Accepted Answer

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

Question 10

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 refers to a form of linear programming that is used to optimally allocate tasks or jobs to resources. It involves solving a set of equations to determine the optimal assignment of tasks based on certain constraints and objective functions.

Question 11

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 (Controlled WIP) cards are a tool used in lean manufacturing to limit the amount of work-in-process (WIP) inventory in production processes. They ensure that production does not start until the previous batch is completed, allowing for a smooth flow of materials and reducing lead times. MRP, Gantt charts, Johnson's rule, and the assignment method are not directly related to managing work-in-process inventory.

Question 12

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

Accepted Answer

Gantt charts can be used for both scheduling and loading jobs, as they provide a visual representation of the tasks to be completed and their timelines. It allows for efficient allocation of resources and monitoring of progress.

Question 13

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 14

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....

Question 15

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

Accepted Answer

The statement is true. The ConWIP card is used to limit the amount of work in progress in a work center, which helps to improve flow and reduce cycle time.

Question 16

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

Accepted Answer

The assignment method, also known as the Hungarian method, is a mathematical algorithm that provides an optimum, one-to-one assignment between jobs and resources. Therefore, the statement is true.

Question 17

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 technique used in linear programming to achieve an optimum, one-to-one matching of tasks and resources. It assigns tasks to resources by minimizing the total cost or maximizing the total profit. This method is commonly used in project management and scheduling to optimize resource utilization and improve efficiency. Johnson's rule, the CDS algorithm, the appointment method, and the reservation method are not specifically designed for one-to-one matching of tasks and resources.

Question 18

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 knowing which workers are assigned to each work center can be helpful for scheduling, it is not a requirement. The other options are all necessary pieces of information for scheduling process-focused facilities.

Question 19

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

The answer of If job 5 takes 3,4 or 5...

Question 20

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...

Quiz 15: Short-Term Scheduling

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 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:

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

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

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?

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

The assignment method is:

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:

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

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

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

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

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

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

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

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