Question 1

A job has 10 days of processing time left to do before completion, and today is the 5^th day of the month. If the job is due on the 15^th day of the month, what is its critical ratio?

Accepted Answer

The critical ratio is calculated as the time remaining until the due date divided by the processing time left. The due date is the 15th day of the month, and today is the 5th day of the month, so there are 10 days left until the due date. The processing time left is also 10 days. Therefore, the critical ratio is 10 days / 10 days = 1.

Question 2

Which of the following is a priority rule used to schedule the sequence of jobs in a production operation?

Accepted Answer

Last-come, first-served is a priority rule used in scheduling to determine the sequence of jobs in production operations.

Question 3

Which of the following is not a priority rule used to schedule the sequence of jobs in a production operation?

Accepted Answer

Last-in, first-out is not a common priority rule used in scheduling production operations. The other options (A, B, D, and E) are commonly used priority rules.

Question 4

When work is scheduled in detail using the setup and run time required for each order, it is called which of the following?

Accepted Answer

Finite loading involves scheduling work based on the setup and run time required for each order, taking into account the capacity of the production system. It is a more detailed and realistic approach to production scheduling than infinite loading, which assumes an endless capacity. Machine-limited and labor-limited refer to constraints on specific resources, but do not necessarily involve detailed scheduling. Johnson's rule is a heuristic for sequencing jobs in a production environment, but again, does not involve detailed scheduling based on setup and run times.

Question 5

Which of the following priority rules used in scheduling the sequence of production is calculated as the slack time remaining in the schedule divided by the number of remaining operations, with the smallest value being run first?

Accepted Answer

This priority rule is called STR/OP (slack time remaining divided by the number of remaining operations) and is used to prioritize jobs with the least amount of slack time left to run. This ensures that jobs are completed as soon as possible and that jobs with larger slack times are pushed back in the schedule. This is important in meeting deadlines and minimizing idle time.

Question 6

A material requirements planning system is an example of which of the following scheduling systems?

Accepted Answer

Material requirements planning (MRP) is an example of infinite loading, backward scheduling because it calculates the materials needed based on the demand and schedules them from the due date backwards to ensure materials are available when needed.

Question 7

The objectives of workcenter scheduling include which of the following?

Accepted Answer

The objective of workcenter scheduling is to minimize setup costs by scheduling jobs in a way that reduces the number of setups required. The other options listed (A, B, C, D) are not objective of workcenter scheduling.

Question 8

For a mid-volume type of manufacturing, which of the following is the typical production scheduling approach?

Accepted Answer

The answer of For a mid-volume type of manufacturing, which...

Question 9

When work has been scheduled in a shop that does not have sufficient resources to complete the schedule on time, the system that generated the schedule is called which of the following?

Accepted Answer

Infinite loading refers to a scheduling system that does not take into account the capacity constraints of resources (such as machines or labor) when generating a schedule. It assumes infinite capacity, leading to schedules that may not be achievable if resources are limited.

Question 10

When work is assigned to a workcenter based on what is needed over time it is called which of the following?

Accepted Answer

Infinite loading refers to assigning work to a workcenter based on the needs over time without considering the capacity constraints of the workcenter.

Question 11

For a low-volume job shop type of manufacturing, which of the following is the typical production scheduling approach?

Accepted Answer

The answer of For a low-volume job shop type of...

Question 12

Which of the following is not a way in which a workcenter can be organized?

Accepted Answer

The question is asking which option is not a way in which a workcenter can be organized, and option B refers to organizing according to function in an assembly line, which is not the same as organizing a workcenter. The other options (A, C, D, E) are all valid ways to organize a workcenter.

Question 13

Which of the following is not a standard measure of schedule performance that can be used to evaluate priority rules?

Accepted Answer

The schedule quality index is not a standard measure of schedule performance used to evaluate priority rules. Standard measures typically focus on efficiency and effectiveness aspects such as minimizing process time, work-in-process inventory, idle time, and meeting customer due dates, rather than a composite index like the schedule quality index.

Question 14

For a continuous-process type of manufacturing, which of the following is the typical production scheduling approach?

Accepted Answer

Finite forward scheduling is the typical production scheduling approach for a continuous-process type of manufacturing. This is because in a continuous-process type of manufacturing, the production process is continuous and the products are produced in a continuous flow. Finite forward scheduling is a scheduling technique that schedules jobs in the order of their due dates, starting with the job with the earliest due date. This scheduling technique is used to minimize the total tardiness of the jobs.

Question 15

Which of the following is not a function performed in scheduling and controlling an operation?

Accepted Answer

All of the other options (A, B, C, and D) are functions that are typically performed in scheduling and controlling an operation. However, reporting bottleneck operations is not a function performed in scheduling and controlling an operation. It may be a result of scheduling and controlling an operation, but it is not something that is actively done in the process.

Question 16

A job has 5 days of processing time left to do before completion, and today is the 10^th day of the month. If the job is due on the 14^th day of the month, what is its critical ratio?

Accepted Answer

The critical ratio is calculated as (Due date - Today's date) / Processing time remaining.

Due date = 14th
Today's date = 10th
Processing time remaining = 5 days

Therefore, (14-10) / 5 = 0.8 
So the critical ratio is 0.8, and the best choice would be to work on the job with highest critical ratio first.

Question 17

In this type of production, the typical scheduling approach is finite forward scheduling of the process; machine-limited.

Accepted Answer

Continuous processes typically use finite forward scheduling and are often machine-limited, as they involve ongoing production with a focus on maximizing machine utilization.

Question 18

For a high-volume type of manufacturing, which of the following is the typical production scheduling approach?

Accepted Answer

For high-volume manufacturing, the typical production scheduling approach is finite forward scheduling. This approach involves starting with the due date of the order and working backward to determine the start date and all the intermediate steps required to complete production on time. This is helpful for ensuring that inventory and resources are properly allocated and utilized to meet production demands.

Question 19

Which of the following is not an objective of workcenter scheduling?

Accepted Answer

Providing time for quality at the source is a goal of quality control, not workcenter scheduling. The objectives of workcenter scheduling are to meet due dates, minimize setup time and cost, minimize work-in-process inventory, and minimize lead time.

Question 20

In this type of production, the typical scheduling approach is finite forward scheduling of the line (a production rate is typical); machine-limited; parts are pulled to the line using just-in-time (Kanban) system.

Accepted Answer

The use of finite forward scheduling and just-in-time (Kanban) system are characteristic of high-volume manufacturing, where production is focused on producing large quantities of standardized products efficiently.

Quiz 22: Workcenter Scheduling

A job has 10 days of processing time left to do before completion, and today is the 5^th day of the month. If the job is due on the 15^th day of the month, what is its critical ratio?

Which of the following is a priority rule used to schedule the sequence of jobs in a production operation?

Which of the following is not a priority rule used to schedule the sequence of jobs in a production operation?

When work is scheduled in detail using the setup and run time required for each order, it is called which of the following?

Which of the following priority rules used in scheduling the sequence of production is calculated as the slack time remaining in the schedule divided by the number of remaining operations, with the smallest value being run first?

A material requirements planning system is an example of which of the following scheduling systems?

The objectives of workcenter scheduling include which of the following?

For a mid-volume type of manufacturing, which of the following is the typical production scheduling approach?

When work has been scheduled in a shop that does not have sufficient resources to complete the schedule on time, the system that generated the schedule is called which of the following?

When work is assigned to a workcenter based on what is needed over time it is called which of the following?

For a low-volume job shop type of manufacturing, which of the following is the typical production scheduling approach?

Which of the following is not a way in which a workcenter can be organized?

Which of the following is not a standard measure of schedule performance that can be used to evaluate priority rules?

For a continuous-process type of manufacturing, which of the following is the typical production scheduling approach?

Which of the following is not a function performed in scheduling and controlling an operation?

A job has 5 days of processing time left to do before completion, and today is the 10^th day of the month. If the job is due on the 14^th day of the month, what is its critical ratio?

In this type of production, the typical scheduling approach is finite forward scheduling of the process; machine-limited.

For a high-volume type of manufacturing, which of the following is the typical production scheduling approach?

Which of the following is not an objective of workcenter scheduling?

In this type of production, the typical scheduling approach is finite forward scheduling of the line (a production rate is typical) ; machine-limited; parts are pulled to the line using just-in-time (Kanban) system.

Quiz 22: Workcenter Scheduling

A job has 10 days of processing time left to do before completion, and today is the 5th day of the month. If the job is due on the 15th day of the month, what is its critical ratio?

Which of the following is a priority rule used to schedule the sequence of jobs in a production operation?

Which of the following is not a priority rule used to schedule the sequence of jobs in a production operation?

When work is scheduled in detail using the setup and run time required for each order, it is called which of the following?

Which of the following priority rules used in scheduling the sequence of production is calculated as the slack time remaining in the schedule divided by the number of remaining operations, with the smallest value being run first?

A material requirements planning system is an example of which of the following scheduling systems?

The objectives of workcenter scheduling include which of the following?

For a mid-volume type of manufacturing, which of the following is the typical production scheduling approach?

When work has been scheduled in a shop that does not have sufficient resources to complete the schedule on time, the system that generated the schedule is called which of the following?

When work is assigned to a workcenter based on what is needed over time it is called which of the following?

For a low-volume job shop type of manufacturing, which of the following is the typical production scheduling approach?

Which of the following is not a way in which a workcenter can be organized?

Which of the following is not a standard measure of schedule performance that can be used to evaluate priority rules?

For a continuous-process type of manufacturing, which of the following is the typical production scheduling approach?

Which of the following is not a function performed in scheduling and controlling an operation?

A job has 5 days of processing time left to do before completion, and today is the 10th day of the month. If the job is due on the 14th day of the month, what is its critical ratio?

In this type of production, the typical scheduling approach is finite forward scheduling of the process; machine-limited.

For a high-volume type of manufacturing, which of the following is the typical production scheduling approach?

Which of the following is not an objective of workcenter scheduling?

In this type of production, the typical scheduling approach is finite forward scheduling of the line (a production rate is typical) ; machine-limited; parts are pulled to the line using just-in-time (Kanban) system.

A job has 10 days of processing time left to do before completion, and today is the 5^th day of the month. If the job is due on the 15^th day of the month, what is its critical ratio?

A job has 5 days of processing time left to do before completion, and today is the 10^th day of the month. If the job is due on the 14^th day of the month, what is its critical ratio?