# POM Exam 2 (Chapters 6, 7, 9)

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question
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. Speed up the assembly line transfer mechanism B. Upgrade the equipment C. Use a more skilled worker D. Assign a roaming helper to support the line E. Split the task between two workstations
A. Speed up the assembly line transfer mechanism Reason: Because speeding up the assembly line transfer mechanism speeds up the entire workstation cycle, which will decrease the cycle time.
question
The placement of which of the following is not determined by production process organization decisions? A. Departments B. Machines C. Workstations D. Emergency Exits E. Workgroups
D. Emergency Exits Reason: An emergency exit is a part of the safety procedure not the production process
question
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. 0.0104 B. 9.6 C. 50 D. 480
B. 9.6 Reason: Cycle Time = (Production time per day/ required output per day)
question
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. Process time/Cycle time D. Throughput rate times flow time E. Process velocity/Flow time
D. Throughput rate times Flow time Reason: 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 Ć Flow time.
question
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. 0.72 B. 250 C. 1.388 D. 500
A. 0.72 Reason: Cycle Time = (Production time per day/ required output per day)
question
Which of the following is a basic type of process structure? A. Workcenter B. Product Matrix C. Manual assembly D. Process Matrix E. Process flow diagram
A. Workcenter Reason: there are five basic structures (project, workcenter, manufacturing cell, assembly line, and continuous process).
question
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. 6 B. 5 C. 8 D. 3
D. 3 Reason: Theoretical number of workstations = (sum of task times/cycle time)
question
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. 0.5 B. 0.973 C. None of these D. 0.833 E. 0.990
D. 0.833 Reason: Efficiency= sum of task times/(actual #of workstation*cycle time)
question
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. Workcenter C. Manufacturing cell D. Project E. Continuous process
A. Assembly line Reason: An assembly line is where work processes are arranged according to the progressive steps by which the product is made.
question
Which of the following is not considered a major work flow structure? A. Assembly line B. Continuous flow C. Project D. Work Center E. Fabrication
E. Fabrication Reason: there are five basic structures of workflow (project, workcenter, manufacturing cell, assembly line, and continuous process).
question
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. None of these B. 2.5 hours C. 5 hours D. 0.1 hours E. 0.2 hours
E. 0.2 Reason: Arrival rate = units in per hour
question
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. Single channel, multiphase B. Multichannel, multiphase C. Multichannel, single phase D. None of these E. Single channel, single phase
C. Multichannel, single phase Reason: Single phase because you are only waiting in one line, but multichannel because there is multiple tickets windows
question
Which of the following is not a queue discipline discussed in the textbook? A. Best customer first B. Last in, first out C. Limited needs D. First come, first serve E. Shortest processing time
B. Last in, first out Reason: Common priority rule examples: Reservations first, emergencies first, highest-profit customer first, largest orders first, best customers first, longest waiting time in line, and soonest promised date.
question
There are many applications of poka-yokes in service organizations. Which of the following is one of the three-T's used to classify pika-yokes? A. Task B. Talent C. Trust D. Time E. Teamwork
A. Task Reason/Example: Task, Treatment, Tangible Task: Fix a Car, Treatment: was the the servos manager courteous, Tangible environment: was the waiting line clean and comfortable
question
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, multiphase B. Multichannel, multiphase C. Multichannel, single phase D. None of these E. Single channel, single phase
C. Multichannel, single phase Reason: Single phase because you are only waiting in one line, but multichannel because there is multiple tickets windows
question
Which of the following is a suggestion for managing queues that is mentioned in the textbook? A. Tell people in the queue that each will be served as soon as possible B. Put up a serpentine lane to keep people from jumping ahead in line C. Use humor to defuse a potentially irritating situation D. Assure customers that the wait is fair and inform them of the queue discipline E. Segment the customers
E. Segment the customers Reason: Useful suggestions for managing are the following: ā¢ Segment the customers. ā¢ Train your servers to be friendly. ā¢ Inform your customers of what to expect. ā¢ Try to divert the customer's attention when waiting. ā¢ Encourage customers to come during slack periods.
question
Which of the following is a suggestion for managing queues presented in the textbook? A. Tell customers that the line should encourage them to come during slack periods B. Use humor to defuse a potentially irritating situation C. Periodically close the service channel to temporarily disperse the line D. Train your servers to be friendly E. Give each customer a number
D. Train your servers to be friendly Reason: Useful suggestions for managing are the following: ā¢ Segment the customers. ā¢ Train your servers to be friendly. ā¢ Inform your customers of what to expect. ā¢ Try to divert the customer's attention when waiting. ā¢ Encourage customers to come during slack periods.
question
In the service-system design matrix, a face-to-face total customization service encounter is expected to have which of the following? A. Low sales opportunity B. Low production efficiency C. Low degree of customer/server contact D. None of these E. High production efficiency
B. Low production efficiency Reason: Just seems right
question
Which of the following is a characteristic that can be used to guide the design of service systems? A. Quality work means quality service B. Services are all similar C. Services cannot be inventoried D. Services businesses are inherently entrepreneurial E. Even service businesses have internal services
C. Services cannot be inventories Reason: In designing service organizations we must remember one distinctive characteristic of services: We cannot inventory services.
question
Which of the following is an input to the master production schedule? A. None of these B. Exception reports C. Bill of Materials File (BOM) D. Inventory records file E. Planned-order schedules
A. None of the above
question
In an MRP program, the program accesses the status segment of an inventory record according to specific periods called which of the following? A. Cubed time units B. Time lines C. Time modules D. Time buckets E. BOM units
D. Time buckets
question
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. 950 B. 350 C. 400 D. 500 C. 1,000
D. 500
question
Which of the following is considered a primary report in an MRP system? A. Planning Report B. Inventory accuracy report C. Peg report D. Aggregate production plan report E. Planned order schedule
E. Planned order schedule
question
One of the main purposes of a MRP system is which of the following? A. Decrease layers of management B. Track inventory levels C. Upgrade manufacturing's professionalism D. Develop schedules specifying when each component should be ordered or produced. E. Create productive capacity
D. Develop schedules specifying when each component should be ordered or produced.
question
Which of the following is an input file necessary to run an MRP system? A. Personnel files B. Exception report C. Planned order schedule D. Computer-aided design files E. Inventory records file