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Final Review 1
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Preguntas del test (15)
1Which of the following will not decrease system utilization?
- AIncrease in arrival rate
- BIncrease in service rate
- Cincrease in the number of servers
- Ddecreased in service time
2What happens to the customer waiting time if system utilization increases?
- ADecrease exponentially
- Bdecrease proportionally
- CIncrease proportially
- DIncrease exponentially
3A single server queuing system has an average time between arrivals of 20 min and a service time of 10 minutes each. Assuming Poisson arrivals and exponential service times, the utilization factor is approximate:
- A0.25
- B0.33
- C0.50
- D2.0
4In a single-server queueing system, if 12 customers arrive per hour and 30 customers are served per hour, what is the probability that is no customers in the system?
- A0.75
- B0.60
- C0.40
- D0.25
5If p(high)=3, P(low) = 7, P (Favorable / high) = 9, p(unfavorable / low) = 6, then P (Favorable) =
- A0.1
- B27
- C.3
- D.55
6The equations provided in the textbook for computing operating characteristics apply to a waiting line operating
- Aat startup
- Bat steady state
- Cat peak demand times
- Din transition
7Operating characteristics formulas for the single channel queue do not require
- Aλ ≥ μ
- BPoisson distribution of arrivals
- Can exponential distribution of service times
- Dan FCFS queue discipline
8In _______ additional information is used to alter the marginal probability of the occurrence of an event
- ABayesian Analysis
- BDecision Analysis
- CProbability Analysis
- DDecision making under certainty
9The efficiency of sample information is
- ARSPT (100%)
- BEVSVEVPP (100%)
- CWESPEVP (100%)
- DEVwSVEVwoSP (100%)
- Enone of the above
10to find the EVSL
- Ause the EVPI to calculate sample information probabilities
- BUse indicator probabilities to calculate prior probabailities
- CUse period and sample information probabilities to calculate revised probabilities
- DUse sample information to revise the sample information probabilities
11The solution to the LP relaxation of a maximization integer linear program provides
- Aan upper bound for the value of the objective function
- Ba lower bound for the value of the objective function
- Can upper bound for the value of the decision variables
- Da lower bound for the value of the decision value
12Let X1 and X2 be 0-1 variables whose values indicate whether projects 1 and 2 are not done or are done. Which answer below indicates that project 2 can be done only if project 1 is done?
- AX1+X2 = 1
- BX1 + X2 = 2
- CX1 - X2 <0
- DX1 - X2 > 0
13Let x1, X2, and X3 be 0 - 1 variable whose values indicate whether the projects are not done (0) or are done. Which answer below indicates that at least two of the projects must be done?
- AX1 +X2+X3 > 2
- BX1+X2+X3 <2
- CX1+X2+X3 = 2
- DX1 - X2 = 0
14If the acceptance of project A is conditional on the acceptance of project B, and vice versa, the appropriate constraint to use is
- AMultiple choice constraints
- Bk out of n alternative constraint
- Cmutually exclusive constraint
- Dcorequisite constraint
15Assuming w1, w2, and w3 are 0 - 1 integer variable, the constraint w1+w2+w3 < 1 is often called a
- Amultiple choice constraint
- Bmutually exclusive constraint
- Ck our of n alternative constraint
- Dcorequisite constraint
Información
- Descripción
- Bus 104 Test sobre Final Review 1, creado por Mahmoud Hemood el 09/06/2019.
- Autor
- Mahmoud Hemood
- Idioma
- English
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- 0
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- Valoración
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