ASQ
CRE · Question #325
Given a system requirement of maintainability (MTTR) of 4.7 hours. There are 5 devices in series with the following individual failure rates and MTTR. Determine the K factor.
The correct answer is B. 0.82. See the full explanation below for the reasoning.
Maintainability and Availability
Question
Given a system requirement of maintainability (MTTR) of 4.7 hours. There are 5 devices in series with the following individual failure rates and MTTR. Determine the K factor.
Exhibit
Options
- A1.06
- B0.82
- C0.94
- D0.87
How the community answered
(62 responses)- A13% (8)
- B76% (47)
- C8% (5)
- D3% (2)
Topics
#MTTR allocation#K factor#maintainability apportionment#series system
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