Chapter 3 quiz MGT 3121
You observe a long line at C&A Bakery with customers leaving every 4 minutes. What is the capacity (in customers per hour) of the bakery?
15 Flow rate = 1/Cycle time = 1/4 = 0.25 minute. Capacity = Flow rate when capacity is constrained = 0.25 customer per minute = 0.25 × 60 (minutes/hour) = 15 customers per hour.
A bank has three tellers. It takes a teller 6 minutes to serve one customer. What is the capacity of the bank (in customers per day) over the course of an 8-hour workday?
240 Capacity = 3/6 × 60 customers per hour × 8 hours = 240 customers per day.
A patient leaves an outpatient clinic every 5 minutes. There are 5 patients in the clinic waiting to be seen by the physician. How long will a patient be in the clinic?
25 Flow time = Inventory × Cycle time = 5 patients × 5 minutes per patient = 25 minutes.
The process is ___________ constrained when ___________ exceeds ___________ and the flow rate is equal to the demand rate.
Demand, supply, demand Flow rate is equal to the demand rate means demand is constrained, which happens when supply exceeds demand.
Cycle time is the same as lead time.
False Cycle time is the time between completing two consecutive flow units, whereas lead time is the time between when an order is placed and when it is received.
The capacity of a resource is the average flow rate of that resource.
False The capacity of a resource is the maximum number of flow units that can flow through that resource per unit of time.
A resource with a utilization of less than 100% is never the bottleneck.
False When the process is demand constrained, even the bottleneck will have a utilization of strictly less than 100%
The capacity of a resource determines the ___________ number of flow units that can flow through that resource per unit of time.
Maximum The capacity of a resource determines the maximum number of flow units that can flow through that resource per unit of time.
The _______________ of a resource is how long that particular resource takes to complete one flow unit.
Processing time The time it takes for a resource to complete one flow unit is called the processing time.
Inventory is shown as ____________ in a process flow diagram.
Triangles Inventory is shown as triangles in a process flow diagram.
A bottleneck is the resource with the lowest capacity.
True A bottleneck is the resource with the lowest capacity in a multistep process.
A community health system's nurse team consists of 12 nurses working in the local community. It takes a nurse 1.5 hours to complete one patient visit (including travel times and breaks). Assuming the demand for the nurses is 60 patients per day, what is the utilization of the nurse team? Assume a 9-hour workday.
Utilization is Flow rate/Capacity, or 60/72 = 0.8333, or 83.33%.
When will the utilization of a bottleneck resource be less than 100%?
When the process is demand constrained A process that is demand constrained will have a flow rate less than the bottleneck capacity, which means there is slack capacity at the bottleneck resources causing a less than 100% utilization.
Which of the following is a resource in an outpatient clinic?
X-ray machine Equipment such as an X-ray machine is a resource at an outpatient clinic.
