1. A water supply system has three pumps labeled A, B, and C. The system is operational if either pump C is functional or both A and B are functional. Draw the reliability block diagram for this system. Assume that the times to failure of the three pumps are modified exponentially distributed with respective masses at origin given by qa, qB and qc and respective rate parameters 2a, 26, and ac. Write down the expression for the system reliability and the system MTTF. 2. Consider a 2-component cold standby system in which component i TTF has a mass at origin, so that Fxi (t) = qi+(1-qi) (1-e^;"); > 0. Thus, qi is the probability that the component is in a failed status at the time it is put in active mode. Now determine the expression of system reliability and the system MTTF. 1. A water supply system has three pumps labeled A, B, and C. The system is operational if either pump C is functional or both A and B are functional. Draw the reliability block diagram for this system. Assume that the times to failure of the three pumps are modified exponentially distributed with respective masses at origin given by qa, qB and qc and respective rate parameters 2a, 26, and ac. Write down the expression for the system reliability and the system MTTF. 2. Consider a 2-component cold standby system in which component i TTF has a mass at origin, so that Fxi (t) = qi+(1-qi) (1-e^;"); > 0. Thus, qi is the probability that the component is in a failed status at the time it is put in active mode. Now determine the expression of system reliability and the system MTTF