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1 | |
A constant service time means that there is a constant time between each service. |
| | A) | True |
| | B) | False |
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2 | |
Queue discipline refers to the amount of patience possessed by the customer. |
| | A) | True |
| | B) | False |
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3 | |
With random arrival and service rates in a waiting line, it is impossible to have full utilization of the server and zero wait time for the customer. |
| | A) | True |
| | B) | False |
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4 | |
Despite restrictive assumptions of queuing models, these models provide much insight to the operations of service systems. |
| | A) | True |
| | B) | False |
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5 | |
The more complex waiting line problems can almost always be handled by: |
| | A) | Mathematical models |
| | B) | Queuing models |
| | C) | Linear programming |
| | D) | Computer simulation |
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6 | |
A one-man barbershop is a typical example of a: |
| | A) | Single channel, tandem service facility |
| | B) | Single channel, single phase facility |
| | C) | Multi-channel, single phase facility |
| | D) | Multi-channel, multi-phase facility |
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7 | |
A customer who arrives, looks, and then leaves is: |
| | A) | Being patient |
| | B) | Balking |
| | C) | Reneging |
| | D) | Short-tempered |
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8 | |
Single channel, tandem service implies: |
| | A) | Many services performed in more than one channel |
| | B) | More than one service in one channel (as in a car wash). |
| | C) | One service, one channel. |
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9 | |
Which of the following is the most common queue discipline? |
| | A) | Shortest processing rule |
| | B) | First-come first-served |
| | C) | Longest processing rule |
| | D) | Minimum slack time |
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10 | |
Theoretically, when the arrival rate and the service rate are equal, the waiting line length, and, therefore, the waiting time, become: |
| | A) | Zero |
| | B) | Inelastic |
| | C) | Infinitely long |
| | D) | Negative |
| | E) | Elastic |
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11 | |
A one-hour film-processing store has a single machine that processes film as it arrives. The mean arrival rate of film is 70 rolls per hour and follows a Poisson Distribution. The mean service rate (development rate) of film is 80 rolls per hour and follows a Poisson Distribution.
Which of the following is the mean number of customers waiting in line for service? |
| | A) | .1667 |
| | B) | .50 |
| | C) | 1.0 |
| | D) | 3.2 |
| | E) | 4.0 |
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12 | |
Which one of the following situations has no waiting lines? (for L = LAMBDA, M = MU) |
| | A) | L = 30, M = 20 both follow a Poisson Distribution |
| | B) | L = 20, M = 20 both follow a Poisson Distribution |
| | C) | L = 10, M = 20 both follow a Poisson Distribution |
| | D) | L = 20, M = 20 both are constant, that is not random |
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2002 McGraw-Hill Higher Education