OPS Management Study Questions

Over the course of a 24-hour period a call center handled 1200 different calls and at noon there were 50 callers "in" the center (talking or waiting to talk to a representative). The sixth caller of the day spent 2.5 minutes with a representative. Which of the given numbers is an inventory? A. 1200 B. 50 C. 2.5

50 callers

You observe a long line at the airport security. The process currently is A. capacity constrained B. demand constrained C. unconstrained D. linearly constrained

A

Is the capacity of the bottleneck larger than, equal to, or smaller than the capacity of the process? A. larger than B. equal to C. smaller than D. idk

B

What is the relationship between the processing time at a resource and its capacity? A. they are the same B. they are reciprocals of each other C. they are multiples of each other D. they are not related

B

A national restaurant chain has just opened a sit-down location at Chicago's O'Hare International Airport. Next to the sit-down location, it has also established a "to-go" section where travelers can purchase premade sandwiches and salads, as well as drinks and snacks. Which dimension of the customer utility function is particularly emphasized with the "to-go" section? A. Performance B. Fit C. Price D. Timing

D

For the purpose of process analysis, which of the following measures would be considered an appropriate flow unit for analyzing the operation of a coffee shop? A. square footage of the store B. number of employees C. number of hours the store is open D. number of customers served

D

Over the course of a month, which of the following is most likely to describe an appropriate flow unit for a process analysis of a hospital? A. the number of phsycians B. the number of beds C. the square footage of the building D. the number of patientes

D

What is the maximum utilization a resource can achieve? A. a value equal to the demand B. a value equal to the capacity C. there is no maximum utilization D. 1.00

D

Which of the following inefficiencies in a grocery store's operations results from inflexibility? A. Leftover fruits B. Delivery delays from the warehouse C. A surge in customer arrivals at one time D. Employee work schedule set a week in advance

D

Which of the following items would be considered resources in a restaurant? A. Recipes B. Food C. Brand image D. Chefs

D

LaVilla is a village in the Italian Alps. Given its enormous popularity among Swiss, German, Austrian, and Italian skiers, all of its beds are always booked in the winter season and there are, on average, 1,400 skiers in the village. On average, skiers stay in LaVilla for 9 days. How many new skiers are arriving, on average, in LaVilla every day?

I = R * T I = 1,400 T = 9 1,400 / 9 = 156 new skiers per day

Consider the baggage check-in process of a small airline. Check-in data indicate that from 9 a.m. to 10 a.m., 200 passengers checked in. Moreover, based on counting the number of passengers waiting in line, airport management found that the average number of passengers waiting for check-in was 29. How long did the average passenger have to wait in line? (minutes)

I = R * T R= 200 passengers per hour / 60 mins = 3.33 I= 29 T= 29/3.33= 8.7 minutes

CodeDeskInc matches programmers with freelance jobs. It has 30 employees who staff its online chat room. It receives, on average, 250 chat requests per hour, and the average chat session takes 5 minutes to complete (i.e., from start to finish). On average, how many chat sessions are active (i.e., started but not completed)?

I = R * T R= 250 chat / 30 employees = 8.33 chat/ hr T= 5 mins / 60 = .083 hour 8.33 * .083 = .6944 * 30 employees = 21 chats

Patients take a drug for severe acne for 2 months and there are 130,000 new patients each month. How many patients are taking this drug on average at any given time?

I= R= 130,000 patients/month T= 2 months 130,00 * 2 = 260,000 patients

It is election day and 1800 voters vote in their precinct's library during the 10 hours the polls are open. On average, there are 15 voters in the library and they spend on average 5 minutes in the library to complete their voting. What is the inventory of voters, the flow rate, and the flow time for each voter?

Inventory of voters= 15 voters Flow rate= 1800 / 10 hours = 180 voters per hour Flow time= 5 minutes

Little's Law states there is a relationship between (choose all that apply) Inventory Flow time Output Throughput

Inventory, flow time, throughput (flow rate)

Which of the following measures would be considered an appropriate flow unit for analyzing the main operation of a gas station? Sales dollars Number of gasoline pumps Number of employees Number of customers served

Number of gasoline pumps and number of employees

You observe a vehicle registration department at your local township. Assume that all employees are ready to work at 9 a.m. You arrive at 9 a.m. sharp and are the first customer. Is your time through the empty process longer or shorter than the flow time averaged across all customers that arrive over the course of the day?

Shorter than the average flow time

Consider a process consisting of three resources. Assume there exists unlimited demand for the product. Resource 1 has a processing time of 5 minutes per unit. Resource 2 has a processing time of 3 minutes per unit. Resource 3 has a processing time of 6 minutes per unit. a. What is the capacity of resource 2? b. What is the bottleneck in the process? c. What is the utilization of resource 2? d. How long does it take the process to produce 183 units starting with an empty system, assuming this is a worker-paced process?

a. 1/3 = 0.333 units per minute b. resource 3 c. (FR = 1/6*60 min = 10 )/ (1/3 * 60 =20) = 50% d. (183 * FR (6)) + 5 mins + 3 mins

It takes a barber 10 minutes to serve one customer. a. What is the capacity of the barber expressed in customers per hour? b. Assuming the demand for the barber is 6 customers per hour, what is the flow rate? c. assuming the demand for the barber is 6 customers per hour, what is the utilization? d. Assuming the demand for the barber is 6 customers per hour, what is the cycle time?

a. 60 mins / 10 mins = 6 customers per hour b. 6 c. 6 demand / 6 capacity = 100% d. 1/6 * 60 = 10 mins per customer

If you maintain inventory at a constant level and keep the throughput rate constant:

customer delivery dates become more reliable

A car manufacturer has designed a "special edition" version of its popular two-door coupe. This special edition has increased horsepower compared to the standard model and a sports suspension. Which dimension of the customer utility function is particularly emphasized with the special edition coupe? A. Performance B. Fit C. Price D. Timing

A

Which of the following questions would be asked in a process analysis of a college admissions office? A. when was the college founded? B. how long does it take the office to process an application? C. how much is the yearly tuition at the college? D. how long does it take the average student to complete a degree program at the college?

B

From the perspective of process analysis, which of the following could be appropriate flow units for a hardware store? A. number of workers B. number of cash registers C. number of customers D. number of suppliers

C

If inventory is measured in kilograms, then when applying Little's Law the flow rate can be measured in ______ A. Units per kilogram B. Minutes per kilogram C. Kilograms per second D. Kilograms per kilometer

C

What are the subcomponents of inconvenience in a customer utility function? A. Location and price B. Price and volume C. Location and time D. Time and performance

C

Which of the following items would be considered an input in the operations of a doctor's office? A. Exam table B. Nurse C. Needle D. Stethoscope

C

Which of the following items would be considered an input in the operations of a soft drink manufacturer? A. Brand image B. Bottling machines C. Empty bottles D. Workers

C

You are sitting in a restaurant and the waiter brings you the food you ordered a while ago. If you think about you being the flow unit in the process of the restaurant, which step of this process will be downstream relative to your current position in the process? A. waiting to order B. being seated at a table C. paying the bill D. reviewing the menu

C

You observe a bank and notice that a customer leaves the bank about every five minutes. These five minutes between customers are A. the capacity of the process B. the processing time of the last resource C. the cycle time D. the lead time

C

At a cruise ship terminal, each day on average 1000 passengers embark on ships. On average, passengers spend 5 days on their cruise before returning to this terminal. If the flow unit is a passenger, then what are the flow rate and flow time of this process?

Flow rate= 1,000 passengers per day Flow time= 5 days