Customer Waiting Time and Service Time Multiple Choice Questions

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Customer Waiting Time and Service Time Multiple Choice Questions

QUESTION 1

  1. The goal of queueing analysis is to minimize:
    A. the sum of customer waiting costs and service costs
    B. the sum of customer waiting time and service time
    C. service costs
    D. customer waiting time

4 points

QUESTION 2

  1. A single server queueing system has an average service time of 8 minutes and an average time between arrivals of 10 minutes. The arrival rate/hour is:
    A. 6 per hour
    B.7.5 per hour
    C. 8 per hour
    D. 10 per hour

4 points

QUESTION 3

  1. A single bay car wash with an exponential arrival rate and service time has cars arriving an average of 10 minutes apart, and an average service time of 4 minutes. The utilization factor is:
    A. 0.24
    B.0.4
    C. 0.67
    D. 2.5

4 points

QUESTION 4

  1. Refer to the following:Customers arrive at a suburban ticket outlet at the rate of 14 per hour on Monday mornings (exponential interarrival times). Selling the tickets and providing general information takes an average of 3 minutes per customer, and varies exponentially. There is 1 ticket agent on duty on Mondays.What is the system utilization?
    A. 0.6
    B.0.7
    C. 0.8
    D. 0.9

4 points

QUESTION 5

  1. Refer to the following:Customers arrive at a suburban ticket outlet at the rate of 14 per hour on Monday mornings (exponential interarrival times). Selling the tickets and providing general information takes an average of 3 minutes per customer, and varies exponentially. There is 1 ticket agent on duty on Mondays.What is the average number of customers waiting in line?
    A. 1.633
    B. 2.333
    C. 2.5
    D. 3.966

4 points

QUESTION 6

  1. Refer to the following:Customers arrive at a suburban ticket outlet at the rate of 14 per hour on Monday mornings (exponential interarrival times). Selling the tickets and providing general information takes an average of 3 minutes per customer, and varies exponentially. There is 1 ticket agent on duty on Mondays.How many minutes does the average customer spend in the system?
    A. 7
    B. 8
    C. 9
    D. 10

4 points

QUESTION 7

  1. The term queue discipline refers to:
    A. the willingness of customers to wait in line for service
    B. having multiple waiting lines without customers switching from line to line
    C. the order in which customers are processed
    D. the reason waiting occurs in underutilized systems

4 points

QUESTION 8

  1. Which of the following is not generally considered as a measure of performance in queueing analysis?

    A. The average number waiting in line
    B. The average number in the system
    C. The system utilization factor
    D. Service time

4 points

QUESTION 9

  1. Which of these would increase system utilization?
    A. An increase in the service rate
    B. An increase in the arrival rate
    C. An increase in the number of servers
    D. A decrease in service time

4 points

QUESTION 10

  1. There are 5 servers in a system with an arrival rate of 6 per hour and a service time of 20 minutes. What is the system utilization?

    A. 0.1
    B. 0.3
    C. 0.4
    D. 1.2

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