The average time before breakdown of a machine is normally distributed and has a mean of 18 weeks and a standard deviation of 3 weeks.If breakdown cost averages $2,000 and preventive maintenance costs $1,400, what is the optimal preventive maintenance interval?
A) 16.4 weeks
B) 14.6 weeks
C) 16.9 weeks
D) 19.6 weeks
E) 21.3 weeks
Correct Answer:
Verified
Q26: Breakdown programs often are prioritized such that
Q27: In the area of maintenance, the Pareto
Q32: "Total productive maintenance" is best described as:
A)avoiding
Q33: Which of the following is the primary
Q34: Reactive maintenance is _ maintenance.
A)Planned
B)After the event
C)Proactive
D)Predictive
E)Preventive
Q35: The type of maintenance which is periodic
Q64: Attempting to determine when preventive maintenance activities
Q70: Which of the following would not improve
Q78: In the broadest sense, equipment and facilities
Q80: Ideally, preventive maintenance will be performed
A)after a
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