Figure 1 below shows a highly simplified system to transfer nitrogen from storage into a reactor. In the event of a serious reactor fault or seismic event there may be a need to transferiinject nitrogen gas from the storage tank into the reactor to cool the reactor and to hold the reactor in a sub-critical state. Figure 1 - Simplified diagram of nitrogen injection into a reactor i) What physical changes could you implement to improve the chances of successfully injecting nitrogen into the reactor? ii) How would you modify the design to prevent common-mode failures? iii) What is the definition of "ALARP"? Explain how the principle of "ALARP" could apply to this system. b) Equipment Selection/Justification A pressure transmitter is required for a nuclear safety protection system, with the following requirements: Requirement 1 - Capable of sensing 10 to 50 bar(g) Requirement 2 - Operating Temperature Range of 0 to 55C Requirement 3 - Withstand a mechanical shock of 4g Requirement 4 - Have an accuracy of \pm 0.1 bar(g) Requirement 5 - Have a digital display Requirement 6 - Be light blue to match the company logo i) It is noted that the pressure transmitter is to be located in a temperature controlled, air conditioned, indoor environment with no possibility of other external influences, and requirement 2 is from a generic company standard. How will this affect your choice of component selection? ii) Four component choices are shown below. Can you rank each component in order