31) A transient state is the normal operating condition of the queuing system.
32) A queue system is in a transient state before the steady state is reached.
33) Little’s Flow Equations are applicable for single-channel systems only.
34) Little’s Flow Equations are advantageous because if one characteristic of the operating system is known, the other characteristics can be easily found.
35) Using a simulation model allows one to ignore the common assumptions required to use analytical models.
36) If we are using a simulation queuing model, we still have to abide by the assumption of a Poisson arrival rate, and negative exponential service rate.
37) The Basic Kendall notation is based on arrival time distribution, service time distribution, and cost characteristics.
38) The percent idle time is equal to 1 minus the utilization factor.
39) Queuing theory had its beginning in the research work of
A) Albert Einstein.
B) A.K. Erlang.
C) J.K. Rowling.
D) P.K. Poisson.
E) A.K. Cox.
40) Assume that we are using a waiting line model to analyze the number of service technicians required to maintain machines in a factory. Our goal should be to
A) maximize productivity of the technicians.
B) minimize the number of machines needing repair.
C) minimize the downtime for individual machines.
D) minimize the percent of idle time of the technicians.
E) minimize the total cost (cost of maintenance plus cost of downtime).
41) In queuing analysis, total expected cost is the sum of expected ________ plus expected ________.
A) service costs, arrival costs
B) facility costs, calling costs
C) calling cost, inventory costs
D) calling costs, waiting costs
E) service costs, waiting costs
42) In queuing theory, the calling population is another name for
A) the queue size.
B) the servers.
C) the arrivals.
D) the service rate.
E) the market researchers.
43) Which of the following is not a valid queuing model based on the Kendall notation?
A) M/M/3
B) D/D/2
C) D/M/1
D) M/M/0
E) G/D/1
44) Which of the following is not true about arrivals?
A) Random arrivals are independent of each other.
B) Random arrivals cannot be predicted exactly.
C) The Poisson distribution is often used to represent the arrival pattern.
D) Service times often follow the negative exponential distribution.
E) The exponential distribution is often used to represent the arrival pattern.
45) An arrival in a queue that reneges is one who
A) after joining the queue, becomes impatient and leaves.
B) refuses to join the queue because it is too long.
C) goes through the queue, but never returns.
D) jumps from one queue to another, trying to get through as quickly as possible.
E) None of the above
46) The customer who arrives at a bank, sees a long line, and leaves to return another time is
A) balking.
B) cropping.
C) reneging.
D) blithering.
E) None of the above
Answer: A
Diff: 2
Topic: CHARACTERISTICS OF A QUEUING SYSTEM
47) The customer who arrives at a bank, enters a line, and decides to leave is
A) balking.
B) cropping.
C) reneging.
D) blithering.
E) None of the above
48) The three major characteristics of the input source that generates arrivals or customers for the service system are
A) size, demographics, and behavior.
B) size, pattern, and behavior.
C) demographics, pattern, and behavior.
D) size, demographics, and pattern.
E) None of the above
49) The term queue “discipline” describes the
A) degree to which members of the queue renege.
B) sequence in which members of the queue arrived.
C) degree to which members of the queue are orderly and quiet.
D) sequence in which members of the queue are serviced.
E) All of the above
50) A vendor selling newspapers on a street corner is an example of a
A) single-channel, multiphase system.
B) single-channel, single-phase system.
C) multichannel, multiphase system.
D) multichannel, single-phase system.
E) None of the above
