A) The critical ratio sequencing rule is widely used for fairness to customers.
B) The emphasis is on staffing levels, not materials.
C) Reservations and appointments are often used to manipulate the supply of services.
D) Labor use can be intensive, and labor demand is usually stable.
E) All of the above are true.
Answer: B) The emphasis is on staffing levels, not materials.
A) cars parked in the parking lot
B) individual store sales
C) transactions
D) units sold
E) customer traffic
Answer: A) cars parked in the parking lot
A) forward scheduling.
B) backward scheduling.
C) infinite scheduling.
D) finite capacity scheduling.
E) progressive scheduling.
Answer: D) finite capacity scheduling.
A) Rules need to be revised to adjust to changes in orders, product mix, and so forth.
B) Rules may not recognize idle resources.
C) Rules may not recognize bottleneck resources
D) Rules may not be able to prioritize two jobs with identical due dates.
E) All of the above are limitations.
Answer: E) All of the above are limitations.
A) critical ratio
B) earliest due date
C) first come, first served
D) slack time remaining
E) Johnson's rule
Answer: E) Johnson's rule
A) maximum average lateness
B) maximum utilization
C) maximum effectiveness
D) minimum average flow time
E) B and D
Answer: E) B and D
A) FCFS maximizes utilization.
B) FCFS minimizes the average number of jobs in the system.
C) FCFS minimizes the average lateness of all jobs.
D) FCFS maximizes the number of jobs completed on time.
E) FCFS seems fair to customers.
Answer: E) FCFS seems fair to customers.
A) critical ratio
B) earliest due date
C) first come, first served
D) longest processing time
E) shortest processing time
Answer: A) critical ratio
A) more than 100
B) 1
C) less than 1
D) 10
E) 3.4
Answer: C) less than 1
A) 100 percent; 10.625
B) low; .0941
C) 0.400 or 40 percent; 2.5
D) 0.235 or 23.5 percent; 4.25
E) maximized; minimized
Answer: C) 0.400 or 40 percent; 2.5
A) total processing time to the number of jobs.
B) total flow time to total processing time.
C) total flow time to the number of jobs.
D) total processing time plus total late time to the number of jobs.
E) total flow time plus total late time to the number of jobs.
Answer: C) total flow time to the number of jobs.
A) FCFS: first come, first served
B) SPT: shortest processing time
C) EDD: earliest due date
D) LPT: longest processing time
E) FCLS: first come, last served
Answer: B) SPT: shortest processing time
A) an order spends waiting for processing at a work center.
B) an order spends being processed at a work center.
C) an order spends moving from one work center to another.
D) to complete an order, including time spent in processing and in waiting.
E) none of the above
Answer: D) to complete an order, including time spent in processing and in waiting.
A) assigns dates to specific jobs or operations steps.
B) assigns jobs to work centers.
C) specifies the order in which jobs should be done at each center.
D) assigns workers to jobs.
E) assigns workers to machines.
Answer: C) specifies the order in which jobs should be done at each center.
A) shortest processing time (SPT)
B) critical ratio (CR)
C) first in, first out (FIFO)
D) first come, first served (FCFS)
E) longest processing time (LPT)
Answer: A) shortest processing time (SPT)
A) earliest due date
B) slack time remaining
C) first come, first served
D) critical ratio
E) Johnson's
Answer: C) first come, first served
A) ABCD
B) DCBA
C) DACB
D) DABC
E) BCAD
Answer: E) BCAD
A) earliest due date
B) earliest design date
C) earliest detrimental date
D) earliest decision date
E) economic date determination
Answer: A) earliest due date
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.
Answer: A) one worker will not get a project assignment.
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.
Answer: D) one project will not get a worker assigned.