1. The system shown below (Figure 1) has identical components with unreliability of 0.1. At least two of components 2,3,4 must work for system successful operation, while one of components 6,7, 8 must work for successful operation of the system. It is required to evaluate the overall system reliability. 2. Evaluate the availability of the figure 1 below which is a system consist of 5 series/parallel components, using the reduction technique. Figure 2: A system consist of 5 components