CBA 390 Quiz 2

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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


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