1. What is the key assumption for the single-server queue model?

A) The average interarrival time (time between arrivals) is greater than the average process time.

B) The average interarrival times less than the average process time.

C) The capacity of the server is less than the demand rate.

D) The flow rate is greater than the capacity.

2. Which of the following is most likely a common cause driving variability in an operation or process?

A) A surge of guests at an airport hotel because of a sudden mechanical breakdown of a plane

B) A snowfall delaying a flight in winter

C) A fryer in a fast food joint that malfunctions regularly and overcooks the fries.

3. Scenario A: The server is idle 10% of the time. Scenario B: The server is idle 35% of the time. All other conditions are identical in both scenarios.

Given the demand suddenly increases such that existing capacity is utilized for an additional 10% (i.e. capacity utilization increases

A) Scenario A

B) Both would see identical or very similar waiting times/lines

C) Scenario B

4) Regular inspection of product quality in a long running, established manufacturing process (regular consumer goods), using the same amount of resources every inspection, can most likely be considered to be

a. A value added activity

b. A business value added activity

c. A non-value added activity

d. Either a business value added activity or a non-value added activity