12. In fault tree analysis, a series structure in an RBD corresponds to which gate in the FT for system failure?

Problem 1b. From 1a, what’s the system’s mean-time-to-failure? (10 points)

19. The main idea of burn-in is that some units contain

8. A static system differs from a dynamic system because a static system

13. System simulation models discussed in the class estimate system reliabilty by

3. A fault tree analysis (FTA) differs from a reliability block diagram (RBD) in that an FTA

Problem 1h. Compare 1h and 1a, which system is more reliable? Explain (5 points)

16. System reliability can be improved by two broad approaches:

Problem 2. Multiple Choice (40 points) 1. Which of the following is considered the most valuable source of information on actual failure modes and mechanisms?

Problem 1g. If, instead of using subsystem-level standby, the system is redesigned with component-level standby. Component 3 is the standby of Component 1, and Component 4 is the standby of Component 2. Here, by standby, we mean the cold standby. It is also assumed that all switches are perfect. Please redraw the reliability block diagram and derive the system’s reliability function. (10 points)