8. (TCO 7) Which following queue discipline is discussed in the textbook? (Point
ID: 458268 • Letter: 8
Question
8. (TCO 7) Which following queue discipline is discussed in the textbook? (Points : 3) Emergencies firstGarner-Whitten formula
Newest customer first
Patient customers last
None of the above Question 9.9. (TCO 7) Machine breakdown and repair in a 12-machine factory having one repair mechanic would develop which type of queuing system line structure concerning machine breakdowns? (Points : 3) Single channel, single phase
Single channel, multiphase
Multichannel, single phase
Multichannel, multiphase
None of the above Question 10.10. (TCO 7) Assume the service rate for a queue in a truck-loading operation is two trucks per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the average service time? (Points : 3) 2 hours
1 hour
0.5 hours
0.25 hours
None of the above 8. (TCO 7) Which following queue discipline is discussed in the textbook? (Points : 3) Emergencies first
Garner-Whitten formula
Newest customer first
Patient customers last
None of the above
Explanation / Answer
9.9 Machine breakdown and repair in a 12-machine factory having one repair mechanic would develop which type of queuing system line structure concerning machine breakdowns.
This is an example of single line, single phase queuing system like one person barber shop.
Therefore correct answer is option 1: single line, single phase
10.10 Assume the service rate for a queue in a truck-loading operation is two trucks per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the average service time?
Average service time = 1 / average service rate
Where average service rate = 2 trucks per hour
Therefore, Average service time = 1 / 2 = 0.5 hours
Correct answer is option 3: 0.5 hours
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