EXAM 3 OPM QUESTIONS AND ANSWERS | COMPLETE STUDY GUIDE &
PRACTICE TEST 2026/2027
________ and ________ are ways to reduce a queue by adjusting demand. - ✔✔Peak-load
pricing, off-peak discount
What is the key assumption for the single-server queue model? - ✔✔The average interarrival
time is greater than the average process time.
Which of the following is a reason why queues will form even if capacity exceeds demand? -
✔✔Customers do not arrive in a consistent pattern
Which of the following statements is FALSE regarding the waiting time in a single-server queue
model? - ✔✔When utilization increases, the average waiting time decreases.
Given the following data at the drive-through of a bank, what is the average interarrival time
from 8:06 to 8:36? - ✔✔7.5 minutes
Consider a single-server queue system for which customers arrive at a rate of 10 per hour and
the average processing time is 1.5 minutes. What is the server utilization? - ✔✔0.15
A server operates with 80% utilization. The coefficient of variation for the service process is 0.5
and the coefficient of variation of the arrival process is 1. The average processing time is 3
minutes. What is the average time a customer waits in the queue according to the single-server
queue model? - ✔✔10.5 minutes
Which of the following is TRUE when comparing the shortest processing time (SPT) versus first-
come-first-served (FCFS) for job sequencing? - ✔✔Jobs spend less time in the system with SPT
than with FCFS.
PRACTICE TEST 2026/2027
________ and ________ are ways to reduce a queue by adjusting demand. - ✔✔Peak-load
pricing, off-peak discount
What is the key assumption for the single-server queue model? - ✔✔The average interarrival
time is greater than the average process time.
Which of the following is a reason why queues will form even if capacity exceeds demand? -
✔✔Customers do not arrive in a consistent pattern
Which of the following statements is FALSE regarding the waiting time in a single-server queue
model? - ✔✔When utilization increases, the average waiting time decreases.
Given the following data at the drive-through of a bank, what is the average interarrival time
from 8:06 to 8:36? - ✔✔7.5 minutes
Consider a single-server queue system for which customers arrive at a rate of 10 per hour and
the average processing time is 1.5 minutes. What is the server utilization? - ✔✔0.15
A server operates with 80% utilization. The coefficient of variation for the service process is 0.5
and the coefficient of variation of the arrival process is 1. The average processing time is 3
minutes. What is the average time a customer waits in the queue according to the single-server
queue model? - ✔✔10.5 minutes
Which of the following is TRUE when comparing the shortest processing time (SPT) versus first-
come-first-served (FCFS) for job sequencing? - ✔✔Jobs spend less time in the system with SPT
than with FCFS.
