A maintenance service facility has Poisson arrival rates, negative exp – McqOptions

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1.	A maintenance service facility has Poisson arrival rates, negative exponential service time and operates on a 'first come first served' queue discipline. Break-downs occur on an average of 3 per day with a range of zero to eight. The maintenance crew can service an average of 6 machines per day with a range of zero to seven. The mean waiting time for an item to be serviced would be
A.	1/6 day
B.	1/3 day
C.	1 day
D.	3 day
Answer» B. 1/3 day

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