Chapter 7

Which of the following is an example of a Make-to-order good/service?

What are the four types of Processes and give a brief description of each of them.

Between a Job shop and a Flow shop which one utilizes more specialized tools?

Job shop

Flow shop

Between a Job shop and a Flow shop which one is able to produce more goods?

Job shop

Flow shop

Out of the four Job processes, which one invests in highest labor skill to produce a product/service?

Flow shop

Job shop

Project

Continuous

Between Job shop and Flow shop which one offers more variety (customization) when producing a product?

Job shop

Flow shop

Out of the four Job processes, which one invests in the least labor to produce a product/service?

Flow shop

Job shop

Project

Continuous

An inspection station for assembling printers receives 40 printers/hour and has two inspectors, each of whom can inspect 30 printers per hour.

What is the utilization of the inspectors?

.67

.90

1.5

1.33

An inspection station for assembling printers receives 40 printers/hour and has two inspectors, each of whom can inspect 30 printers per hour.

What service rate would be required to have a target utilization of 85%?

47.05

23.52

.47

Suppose that a voting facility processes an average of 50 people per hour, and on average, it takes 10 minutes for each person to complete the voting process. What is the average number of voters in process (i.e., WIP)?

300

6.66

500

8.33

Suppose that a bank takes an average of 6 days (0.2 months) to process an application and that an internal audit found that about 100 applications are in various stage of processing at any one time. What is the throughput (R)?

500 per month

16.67 per month

20 per month

300 per month

Suppose that a manufacturing facility assemble 400 bicycles per hour, and that it typically has 50 bicycles in various stage of processing in the manufacturing facility. What is the average flow time (T)?

20,000 per hour

.125 per hour

.67 per hour

.88 per hour

Suppose that a manufacturing facility assemble 150 bicycles per hour, and that it typically has 10 bicycles in various stage of processing in the manufacturing facility. What is the average flow time (T)?

.067 per hour

.67 per hour

.125 per hour

1,500 per hour

Suppose that an insurance claim division processes an average of 35 claims per hour, and on average, it takes 15 minutes for a worker to complete the claim reconciliation. What is the average number of claims in process (i.e., WIP)?

8.33

9.89

8.75

5.67

Suppose that a oil refinery processes an average of 500 gallons of oil an hour, and on average, it takes 45 minutes for the oil to complete the refinery process. What is the average amount of oil in process (i.e., WIP)?

375

500

290

400

Chapter 7

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