CBA 390 Quiz 2
You are filling your prescription at a pharmacy. Right now, you are waiting in line in front of the pickup window. Which process is upstream, relative to your current position in the process
dropping off the prescription
Process utilizaiton is the ratio between ___ and ____
flow rate, process capacity
The capacity of a nonbottleneck resource is ___ the capacity of the process.
larger than
The capacity of a resource determines the ___ number of flow unites that can flow through that resource per unit of time
maximum
The process capacity determines the ___ a process can provide per unit of time
maximum flow rate
Which of the following statements about process analysis is true
process analysis is a framework to understand an organization's detailed operations
The ____ of a resource is how long that particular resource takes to complete one flow unit
processing time
Inventory is shown as ___ in a process flow diagram
triangles
Refer to the process flow diagram below. Station 1 is ____ from station 2
upstream
When will the utilization of a bottleneck resource be less than 100%?
when the process is demand-constrained
One employee is in charge of the following activities at a bank's drive-through: What is the processing time (in seconds) of the drive-through process at the bank?
135; (the processing time of a process is the sum of the activity times of all its activities
Which of the following is a resource in an outpatient medical clinic
X-ray machine
Customers drive away after failing to find a place to park at a supermarket. The current process is ____.
capacity-constrained
Capacity is constrained when ____ exceeds ___ and the flow rate is equal to ___
demand, supply, process capacity
One employee is in charge of the following activities at a bank's drive-through: What is the bank's process capacity (in customers per minute)?
0.44; since there is only one employee, the process capacity = 1/[2 + 3 +(2 x 60) + 10] =0.007 customers per second = 0.007 x 60 (seconds/minute)= 0.44 customer per minute
Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. What is the bottleneck capacity in candidates per hour?
1.5; Bottleneck capacity= Min(1, 1/40, 1/10) = 0.025 candidate per minute or 1.5 candidates per hour
Patients are arriving at a clinic at a rate of two per minute. Each patient's visit consists of four steps: check-in, record vital signs, receive treatment, and check out. A receptionist takes 1 minute to check a patient in. A nurse takes 2 minutes to record the patients's vital signs. A doctor spends 10 minutes with a patient. A staff member takes 3 minutes to check a patient out. What is the cycle time of the process in minutes?
10; capacity = 1/ processing time. Capacity at check-in, record vital signs, receive treatment, and check out is 1, 0.5, 0.1, and 0.333 patients per minute respectively. The lowest capacity is the bottleneck and is process capacity = 0.1 patient per minute = 0.1 x 60 (minutes/hour) = 6 patients per hour. Flow rate = Min(Demand, Process capacity) = Min(2,0.1)= 0.1. Cycle time = 1/Flow rate = 1/ 0.1 = 10 minutes
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 hour) over the course of an 8-hour workday?
240; capacity= 3/6 x 60 customers per hour x 8 hours = 240 customers per day
One employee is in charge of the following activities at a bank's drive-through: What is the capacity (in customers per hour) of the employee?
26.67; Capacity = 1/[2 + 3 + (2 x 60) + 10] = 0.007 customer per second = 0.007 x 60 (seconds/minute) x 60 (minutes/hour) = 26.67 customers per hour
Patients are arriving at a clinic at a rate of two per minute. Each patient's visit consists of four steps: check-in, record vital signs, receive treatment, and check out. A receptionist takes 1 minute to check a patient in. A nurse takes 2 minutes to record the patients's vital signs. A doctor spends 10 minutes with a patient. A staff member takes 3 minutes to check a patient out. What is the utilization of the checkout resource?
30%; capacity = 1/ processing time. Capacity at check-in, record vital signs, receive treatment, and check out is 1, 0.5, 0.1, and 0.333 patients per minute respectively. The lowest capacity is the bottleneck and is process capacity = 0.1 patient per minute = 0.1 x 60 (minutes/hour) = 6 patients per hour. Flow rate = Min(Demand, Process capacity) = Min(2,0.1)= 0.1. Utilization of checkout = Flow rate/ Capacity of checkout = 0.1 / 0.333= 30%
Patients are arriving at a clinic at a rate of two per minute. Each patient's visit consists of four steps: check-in, record vital signs, receive treatment, and check out. A receptionist takes 1 minute to check a patient in. A nurse takes 2 minutes to record the patients's vital signs. A doctor spends 10 minutes with a patient. A staff member takes 3 minutes to check a patient out. What is the process capacity in patients per hour?
6; capacity = 1/ processing time. Capacity at check-in, record vital signs, receive treatment, and check out is 1, 0.5, 0.1, and 0.333 patients per minute respectively. The lowest capacity is the bottleneck and is process capacity = 0.1 patient per minute = 0.1 x 60 (minutes/hour) = 6 patients per hour.
Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. What is the utilization of the bottleneck resource?
80%; cycle time = 50 minutes. Flow rate = 1/50 = 0.02 customers per minute. Bottleneck capacity = Min(1, 1/40, 1/10) = 0.025 customer per minute. Utilization of the bottleneck resource = Flow rate/ Capacity = 0.02/0.025= 80%
Job candidates are leaving an office every 50 minutes. Each candidate goes through three activities during the office visit: verification, written test, and interview. Verification takes 1 minute, the written test takes 40 minutes, and the interview takes 10 minutes. Assume there is only one resource dedicated to each activity. Which of the following conclusions can be drawn?
The process is demand-constrained. Process capacity = Min(1, 1/40, 1/10) = 0.025 candidate per minute. Flow rate = 1/cycle time = 1/50 = 0.02 candidate per minute. The process is demand constrained because the flow rate is less than the process capacity.
On a process flow diagram, ___ are used to show the journey of a flow unit from input to output.
arrows
Resources are shown in a process flow diagram as
boxes