POM Exam 2 Ch. 6-9

We would expect to see which of the following in an MRP system's inventory status file? A. End items produced B. Late/early delivery records C. Scrap parts D. Labor efficiency E. Computer errors

C. Scrap parts

Using the assembly-line balancing procedure, which of the following is the theoretical minimum number of workstations if the task times for the six tasks that make up the job are 4, 6, 7, 2, 6, and 5 minutes, and the cycle time is 10 minutes? a. 3 b. 6 c. 8 d. 5 e. None of these

a. (4 + 6 + 7 + 2 + 6 + 5) / 10 = 3.

You have just determined the actual number of workstations that will be used on an assembly line to be 6 using the assembly-line balancing procedure. The cycle time of the line is 5 minutes and the sum of all that tasks required on the line is 25 minutes. Which of the following is the correct value for the resulting line's efficiency? a. 0.833 b. None of these c. 0.500 d. 0.990 e. 0.973

a. 0.833 Using equation 6.5, [25 / (6 x 5)] = 0.833.

Which of the following is the net requirement using an MRP program if the gross requirement is 1,000 and the inventory on hand is 500? a. 500 b. 350 c. 1,000 d. 400 e. 950

a. 500

Which of the following basic types of process structures is one which equipment or work processes are arranged according to the progressive steps by which the product is made? a. Assembly line b. Manufacturing cell c. Workcenter d. Project e. Continuous process

a. Assembly line An assembly line is where work processes are arranged according to the progressive steps by which the product is made.

In an MRP program, the program accesses the status segment of an inventory record according to specific periods called which of the following? a. Time buckets b. Time lines c. Time modules d. BOM units e. Cubed time units

a. Time buckets

Which of the following is a suggestion for managing queues presented in the textbook? a. Train your servers to be friendly b. Give each customer a number c. Periodically close the service channel to temporarily disperse the line d. Use humor to defuse a potentially irritating situation e. Tell customers that the line should encourage them to come during slack periods

a. Train your servers to be friendly Useful suggestions for managing are the following: • Segment the customers. • Train your servers to be friendly. • Inform your customers of what to expect. • Try to divert the customer's attention when waiting. • Encourage customers to come during slack periods.

Using the assembly-line balancing procedure, which of the following is the required cycle time if the production time in minutes per day is 1440 and the required output per day in units is 2000? a. Cannot be determined from the information above b. 500 c. 250 d. 1.388 e. 0.72

e. 0.72 Using equation 6.3, 1,440 minutes / 2000 units = 0.72 minutes per unit.

One of the main purposes of a MRP system is which of the following? a. Create productive capacity b. Decrease layers of management c. Track inventory levels d. Upgrade manufacturing's professionalism e. Develop schedules specifying when each component should be ordered or produced.

e. Develop schedules specifying when each component should be ordered or produced.

Which of the following is an input file necessary to run an MRP system? a. Planned order schedule b. Computer-aided-design files c. Exception report d. Personnel files e. Inventory records file

e. Inventory records file

Which of the following is not a queue discipline discussed in the textbook? a. First come, first served b. Limited needs c. Shortest processing time d. Best customer first e. Last in, first out

e. Last in, first out Probably the most common priority rule is first come, first served. Reservations first, emergencies first, highest-profit customer first, largest orders first, best customers first, longest waiting time in line, and soonest promised date are other examples of priority rules.

Which of the following is an input to the master production schedule? a. None of these b. Bill of materials (BOM) file c. Planned-order schedules d. Inventory records file c. Exception reports

a. None of these

Which of the following is considered a primary report in an MRP system? a. Planned order schedules b. Planning reports c. Cycle counting reports d. Exception reports e. Performance reports

a. Planned order schedules

We would expect to see which of the following in an MRP system's inventory status file? a. Scrap parts b. Labor efficiency c. Computer errors d. Late/early delivery records e. End items produced

a. Scrap parts

Which of the following is a suggestion for managing queues that is mentioned in the textbook? a. Segment the customers b. Put up a serpentine lane to keep people from jumping ahead in line c. Tell people in the queue that each will be served as soon as possible d. Use humor to defuse a potentially irritating situation e. Assure customers that the wait is fair and inform them of the queue discipline

a. Segment the customers Useful suggestions for managing are the following: • Segment the customers. • Train your servers to be friendly. • Inform your customers of what to expect. • Try to divert the customer's attention when waiting. • Encourage customers to come during slack periods.

There are many applications of poka-yokes in service organizations. Which of the following is one of the three-T's used to classify poka-yokes? a. Task b. Time c. Trust d. Teamwork e. Talent

a. Task These can be classified into warning methods, physical or visual contact methods, and by what we call the Three T's —the Task to be done (Was the car fixed right?), the Treatment accorded to the customer (Was the service manager courteous?), and the Tangible or environmental features of the service facility (Was the waiting area clean and comfortable?).

The placement of which of the following is not determined by production process organization decisions? a. Workstations b. Emergency exits c. Departments d. Machines e. Workgroups

b. Emergency exits Emergency exits are determined by safety concerns, not by production process organization decisions.

When balancing an assembly line, which of the following is not a way to reduce the longest task time below the required workstation cycle time? a. Assign a roaming helper to support the line b. Speed up the assembly line transfer mechanism c. Use a more skilled worker d. Upgrade the equipment e. Split the task between two workstations

b. Speed up the assembly line transfer mechanism There are several ways that we may be able to accommodate a 40-second task in a 36-second cycle. Possibilities are: 1. Split the task. 2. Share the task 3. Use parallel workstations. 4. Use a more skilled worker. 5. Work overtime. 6. Redesign. Other possibilities to reduce the task time include an equipment upgrade, a roaming helper to support the line, a change of materials, and multiskilled workers to operate the line as a team rather than as independent workers.

Which of the following is an input to the master production schedule (MPS)? a. The exception report b. The aggregate plan c. Inventory records file d. Planned order schedules e. The bill of materials

b. The aggregate plan

For an infinite queuing situation, if the arrival rate for loading trucks is 5 trucks per hour, what is the mean time between arrivals? a. 0.1 hours b. 2.5 hours c. 0.2 hours d. 5 hours e. None of these

c. 0.2 hours Mean time between arrivals = 1 / Arrival rate = 1 / 5 = 0.2 hours.

Using the assembly-line balancing procedure, which of the following is the required cycle time in minutes per unit if the daily production time is 480 minutes and the required daily output is 50 units? a. 50 b. Cannot be determined from the information above c. 9.6 d. 480 e. 0.104

c. 9.6 Using equation 6.3, 480 minutes / 50 units = 9.6 minutes per unit.

MRP systems seek to achieve which of the following? a. Relieve capacity bottlenecks b. Minimize lot sizes c. Determine the number of dependent demand items needed d. Improve on JIT methods e. Provide a yardstick for future improvements

c. Determine the number of dependent demand items needed

Buying a ticket for a college football game where there are multiple windows to buy the ticket at features which type of queuing system line structure? a. Single channel, single phase b. None of these c. Multichannel, single phase d. Single channel, multiphase e. Multichannel, multiphase

c. Multichannel, single phase Multichannel, single phase. Tellers' windows in a bank and checkout counters in high-volume department stores also exemplify this type of structure.

Which of the following is considered a primary report in an MRP system? a. Peg report b. Aggregate production plan report c. Planned order schedule d. Inventory accuracy report e. Planning report

c. Planned order schedule

Which of the following is a characteristic that can be used to guide the design of service systems? a. Services are all similar b. Quality work means quality service c. Services cannot be inventoried d. Services businesses are inherently entrepreneurial e. Even service businesses have internal services

c. Services cannot be inventoried In designing service organizations we must remember one distinctive characteristic of services: We cannot inventory services.

According to Little's Law, which of the following can be used to estimate work-in-process inventory? a. Set up time/Throughput rate b. Value added time/Process velocity c. Throughput rate times Flow time d. Process velocity/Flow time e. Process time/Cycle time

c. Throughput rate times Flow time Simple systems can be analyzed quickly using a principle known as Little's law. Little's law says there is a long-term relationship between the inventory, throughput, and flow time of a production system in steady state. The relationship is: Inventory = Throughput rate × Flow time.

Which of the following is a basic type of process structure? a. Process flow diagram b. Process matrix c. Workcenter d. Manual assembly e. Product matrix

c. Workcenter The formats by which a facility is arranged are defined by the general pattern of work flow; there are five basic structures (project, workcenter, manufacturing cell, assembly line, and continuous process).

Which of the following is not considered a major work flow structure? a. Assembly line b. Work Center c. Continuous Flow d. Fabrication e. Project

d. Fabrication The formats by which a facility is arranged are defined by the general pattern of work flow; there are five basic structures (project, workcenter, manufacturing cell, assembly line, and continuous process).

In the service-system design matrix, a face-to-face total customization service encounter is expected to have which of the following? a. None of these b. Low sales opportunity c. Low degree of customer/server contact d. Low production efficiency e. High production efficiency

d. Low production efficiency

Standing in line to buy a ticket for a movie where there are multiple windows to buy tickets is which type of queuing system line structure? a. None of these b. Single channel, single phase c. Single channel, multiphase d. Multichannel, multiphase e. Multichannel, single phase

e. Multichannel, single phase Multichannel, single phase. Tellers' windows in a bank and checkout counters in high-volume department stores exemplify this type of structure.