Deck 23: Job and Staff Scheduling

Question 1

The Theory of Constraints focuses on developing schedules for part-time workers or overtime shifts to address capacity constraints.

Answer 1

False

Question 2

Finite loading does not account for the capacity of work centres.

Answer 2

False

Question 3

Forward scheduling is based on completing jobs exactly on their due date.

Answer 3

False

Question 4

A schedule/control Gantt chart can be used to monitor job progress.

Question 5

Backward scheduling is based on working back from the due dates for jobs.

Question 6

In job scheduling,most loading of work centres is based on infinite loading.

Question 7

A Gantt chart is a visual aid for loading,scheduling,and control purposes.

Question 8

Priority rules generally assume that a job's setup time is independent of the sequence of processing jobs.

Question 9

The term loading,as used in scheduling,refers to choosing the sequence of jobs to process.

Question 10

A load Gantt chart only designates the total load for work centres not the timing of jobs.

Question 11

Sequencing is concerned with the order in which jobs are processed,while loading is concerned with assigning jobs to work centres or workstations.

Question 12

In the production planning hierarchy,scheduling is the final step before the actual output is produced.

Question 13

First come,first served (FCFS)is an example of a priority rule for sequencing.

Question 14

Scheduling work centre loading must be completed before starting materials requirement planning (MRP).

Question 15

Make-span is the total time needed to complete a group of jobs.

Question 16

Loading refers to the assignment of jobs to work centres.

Question 17

Input/Output (I/O)control is a visual representation of the progress of jobs that indicates if they are ahead or behind schedule.

Question 18

Input/output (I/O)control refers to monitoring changes in productivity for various work centres in a process.

Question 19

All priority rules are designed to ensure that the most urgent jobs (earliest due date)are scheduled first.

Question 20

A Gantt chart is a specialized scheduling tool specifically for planning construction projects.

Question 21

Shop-floor control,or production activity control,involves the execution of the job schedule,and taking any necessary actions.

Question 22

Bottlenecks occur at work centres when the idle time is equal to zero.

Question 23

The primary limitation of the first come,first served (FCFS)priority rule is that short jobs will tend to delay longer jobs that follow.

Question 24

For the Theory of Constraints,the transfer batch denotes a portion of the production lot that could be moved to the bottleneck operation.

Question 25

A basic difference between staff scheduling in services and manufacturing companies is the of demand for end products in manufacturing is more volatile in contrast to relatively uniform,predictable demand in services.

Question 26

For a one machine/station shop,the shortest (imminent)processing time (SPT)priority rule will always result in the lowest average flow time.

Question 27

The output of the system is limited by the output of the bottleneck operation(s).

Question 28

Splitting a large lot at one or more operations after a bottleneck operation would reduce the waiting time of the bottleneck operation.

Question 29

The elimination of idle time on both bottleneck and non-bottleneck operations is equally important.

Question 30

Johnson's rule is a technique used to sequence jobs through a two-step work sequence.

Question 31

As long as the bottleneck operations are used effectively,the idle time of non-bottleneck operations will not affect the overall productivity of the system.

Question 32

For service systems with customers directly involved in the process,FCFS is the dominant priority rule.

Question 33

All priority or dispatching rules involve complex computations intended to establish an optimal processing sequence for production facilities.

Question 34

Which of the following is not a common criteria when using the Assignment model?

A)costs
B)prioritizing
C)profits
D)performance
E)optimization

Question 35

For services,the process of assigning work shifts to staff begins with forecasting the amount of work to be done during each hour (or shift)during the time period the schedule is being planned.

Question 36

A major reason for scheduling difficulty is variability in setup times,processing times,interruptions,and changes in the set of jobs.

Question 37

A schedule/control Gantt chart depicts jobs or their components versus time to illustrate if they are behind or ahead of schedule.

Question 38

The inability to store services makes staff scheduling for services more complex than for manufacturing companies.

Question 39

Moore's rule is a technique to minimize the number of late jobs for a group of jobs to be processed on one work centre/machine.

Question 40

The shortest processing time (SPT)rule minimizes downstream idle time.

Question 41

An area in a production facility consisting of one or more workers and machines with similar capabilities that can be considered one unit for the purpose of scheduling is a:

A)job shop.
B)bottleneck.
C)work team.
D)cell layout.
E)work centre.

Question 42

In airline crew scheduling what is the last thing that is scheduled?

A)flights
B)crews
C)planes
D)maintenance
E)destinations

Question 43

Which of the following is not a method to reduce scheduling difficulty?

A)Set realistic due dates
B)Adapt the schedule to changing customer requirements
C)Focus in bottleneck operations
D)Use scheduling software
E)Use shop floor control

Question 44

When sequencing jobs with sequence-dependent setup times the goal is to:

A)Minimize total setup time
B)Maximize total setup time
C)Average the setup times
D)Minimize flow time
E)Maximize utilization

Question 45

In the drum-buffer-rope conceptualization used in the theory of constraints,the "buffer" refers to:

A)inventory just before the bottleneck.
B)the bottleneck of the process.
C)total capacity of the process.
D)first stage in the process.
E)the master schedule.

Question 46

Two different approaches to load work centres in job scheduling are:

A)economic order quantity (EOQ)and material requirements planning (MRP).
B)Gantt charts and shop-floor control.
C)infinite loading and finite loading.
D)linear programming and trial-and-error.
E)linear programming and Gantt charts.

Question 47

The priority rule where jobs are processed according to the smallest ratio of time until due date to processing time is:

A)critical ratio (CR).
B)earliest due date (EDD).
C)first come,first serve (FCFS).
D)minimum slack time (MST).
E)shortest processing time (SPT).

Question 48

Input/Output (I/O)control is used to:

A)increase work flows and queues at a work centre.
B)ensure overloading of a work centre to maximize efficiency.
C)minimize WIP at a work centre
D)manage work flows and queues at a work centre.
E)maximize make-span.

Question 49

Assigning jobs to work centres and to various machines within each work centre describes:

A)loading.
B)staff scheduling.
C)material requirements planning.
D)capacity planning.
E)capacity utilization.

Question 50

Which of the following is not a "tool" (technique)for shop-floor control?

A)Anticipated delay report
B)Input/output (I/O)control
C)Daily dispatch lists
D)Product structure tree
E)Schedule/control Gantt chart

Question 51

Job scheduling pertains to:

A)hiring workers.
B)capacity planning.
C)buying machinery.
D)timing the use of work centres.
E)inventory allocation.

Question 52

Scheduling that starts with the present time and continues into the future is called:

A)detailed scheduling.
B)staff scheduling.
C)master production scheduling.
D)forward scheduling.
E)backward scheduling.

Question 53

In the drum-buffer-rope conceptualization used in the theory of constraints,the "drum" that sets the pace for production refers to:

A)work-in-process inventory before the bottleneck.
B)the bottleneck of the process.
C)total capacity of the process.
D)first stage in the process.
E)the master schedule.

Question 54

Which of the following is the last step in the production planning hierarchy before actual output is produced?

A)Material requirements planning.
B)Enterprise resource planning.
C)Capacity planning.
D)Aggregate planning.
E)Scheduling.

Question 55

Assigning jobs to work centres without regard to the available capacity of the work centres describes:

A)backward loading.
B)forward loading.
C)finite loading.
D)infinite loading.
E)capacity loading.

Question 56

Finite loading,as compared to infinite loading,assumes that:

A)there are a finite number of jobs to be done.
B)work centres can be loaded without regard to their capacity.
C)work centres' capacity must be taken into account in assigning jobs.
D)work centres' capacity will be increased as needed after assigning jobs.
E)only certain jobs will be loaded based on processing time.

Question 57

The purpose of a Gantt chart is to:

A)visually express the capacity of resources.
B)quantitatively analyze the optimum sequencing of resources.
C)visually represent the loading and scheduling of jobs for control purposes.
D)quantitatively analyze the capacity of production resources.
E)visually express the material allocation at work centres.

Question 58

As a performance measure in scheduling,job flow time does not include:

A)movement time between operations.
B)processing time.
C)idle time.
D)setup time.
E)due dates for each job.

Question 59

Monitoring and managing the work flow at each work centre on the shop-floor of a production facility is called:

A)lot sizing.
B)inventory turnover.
C)daily dispatch lists.
D)Gantt chart.
E)Input/output (I/O)control.

Question 60

A schedule/control Gantt chart is a visual representation of progress on the shop-floor which shows _______ on a vertical axis,and _______ on the horizontal axis.

A)jobs in progress; time
B)jobs in progress; total costs
C)hours worked; jobs in progress
D)total costs; jobs in progress
E)actual output; actual input

Question 61

A scheduling rule used for sequencing jobs through two work centres is:

A)critical ratio rule.
B)Johnson's rule.
C)minimum slack time rule.
D)shortest processing time rule.
E)earliest due date rule.

Question 62

For the jobs listed below,which processing sequence would result using Johnson's Rule? Processing time (hrs.)
11eab92b_c479_cbf3_99e6_89f1b7be27d5

A)c-a-d-b
B)b-d-a-c
C)a-b-c-d
D)d-c-b-a
E)c-a-b-d

Question 63

What is the optimum job sequence for the jobs listed below,using Johnson's Rule? 11eab92b_c479_cbf4_99e6_4fc80f07f601

A)e-g-f-d
B)d-g-f-e
C)d-f-g-e
D)e-d-f-g
E)f-e-d-g

Question 64

Shift scheduling for services does not involve:

A)forecasting the amount of work to be done per time period.
B)assigning shifts to staff based on skill and availability.
C)converting work per time period into number of workers required
D)covering requirements with a minimum of shifts.
E)staffing at a constant minimum level to minimize wage costs.

Question 65

The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received: If he uses the shortest processing time first (SPT)priority rule to schedule these jobs,what will be the average job lateness?

A)0 hours
B)1.5 hours
C)1.75 hours
D)2 hours
E)2.25 hours

Question 66

The Theory of Constraints focuses on ________.

A)work-in-process inventory
B)total processing time
C)bottleneck operations
D)job sequencing
E)worker assignments

Question 67

Average job flow time for a schedule sequence at a work station is:

A)total processing time divided by the number of jobs.
B)total flow time divided by the number of jobs.
C)total flow time divided by total processing time.
D)total processing time plus total late time divided by number of jobs.
E)total flow time plus total late time divided by number of jobs.

Question 68

Which of the following is not a measure for judging the effectiveness of a schedule sequence?

A)Average work-in-process
B)Total processing time
C)Job flow time
D)Job lateness
E)average hours or days late

Question 69

Which sequencing rule is designed specifically to minimize job lateness?

A)Critical ratio (CR)
B)Earliest due date (EDD)
C)First come,first serve (FCFS)
D)Minimum slack time (MST)
E)Shortest processing time (SPT)

Question 70

The total time needed to complete a group of jobs from the beginning of the first job to the completion of the last job is called the:

A)job flow time.
B)make-span.
C)earliest due date (EDD).
D)delivery time.
E)average WIP.

Question 71

The table below contains information about five jobs waiting to be processed at work station number three. Using the MST rule,the sequence of jobs would be:

A)c-a-b-d-e.
B)a-b-d-e-c.
C)d-e-b-a-c.
D)c-a-b-e-d.
E)e-d-b-a-c.

Question 72

The table below contains information about five jobs waiting to be processed at work station number three. Using the EDD rule,the sequence of jobs would be:

A)d-e-b-a-c.
B)a-d-c-b-e.
C)e-d-b-a-c.
D)a-d-c-e-d.
E)e-b-c-d-a.

Question 73

A primary reason why staff scheduling in services can be more challenging than it is for manufacturing is:

A)services have less processing variability.
B)services cannot be inventoried.
C)people generally are willing to wait longer for manufactured products.
D)customers will not wait for services.
E)all services use appointments that have to match customers' schedules.

Question 74

The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received: If he uses the earliest due date first (EDD)priority rule to schedule these jobs,what will be the average job lateness?

A)0 hours
B)1.5 hours
C)1.75 hours
D)2 hours
E)2.25 hours

Question 75

In scheduling staff for services,flexible capacity is achieved by:

A)part time workers and the timing of shifts.
B)using Johnson's rule.
C)offering incentives for customers to come during non-peak hours.
D)maintaining inventory.
E)managing waiting lines so customers perceptions of waiting are altered.

Question 76

The table below contains information about five jobs waiting to be processed at work station number three. Using the CR rule,the sequence of jobs would be:

A)c-a-b-d-e.
B)a-b-d-e-c.
C)d-e-b-a-c.
D)c-a-b-e-d.
E)e-d-b-a-c.

Question 77

The scheduling sequencing rule which always results in the lowest average flow (flow)time is the:

A)critical ratio (CR).
B)earliest due date (EDD).
C)first come,first serve (FCFS).
D)minimum slack time (MST).
E)shortest processing time (SPT).

Question 78

The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received: If he uses the shortest processing time first (SPT)priority rule to schedule these jobs,what will be the average flow time?

A)7.5 hours
B)5 hours
C)3 hours
D)2.5 hours
E)2 hours

Question 79

The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received: If he uses the first come,first served (FCFS)priority rule to schedule these jobs,what will be the average flow time?

A)7.5 hours
B)5 hours
C)3 hours
D)2.5 hours
E)2 hours

Question 80

The table below contains information about five jobs waiting to be processed at work station number three. The sequence that would result using the SPT rule is:

A)e-b-c-d-a.
B)c-a-b-e-d.
C)a-d-c-e-b.
D)d-e-b-a-c.
E)e-d-b-a-c.