Question 1 (Answer all parts, 13 questions worth 4 marks each, total of 52 marks) a) State where the legislative concept

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Question 1 Answer All Parts 13 Questions Worth 4 Marks Each Total Of 52 Marks A State Where The Legislative Concept 1 (70.18 KiB) Viewed 58 times

Question 1 (Answer all parts, 13 questions worth 4 marks each, total of 52 marks) a) State where the legislative concepts as low as reasonably practicable ALARP & 'so far as is reasonably practicable SFAIRP are defined. Explain what these concepts mean, and provide two reasons why they are more valuable than prescriptive regulations which state precisely how a risk must be managed (4 marks] b) State what the acronym REACH stands for? Explain what chemical manufacturers, Importers and users are required to do under the REACH legislation. [4 marks) c) Describe three possble modes of exposure to toxic substances and order them in terms of the likely time after exposure that the peak blood plasma concentration is reached explaining why this is. [4 marks) d) Identify three safety critical systems which were non-functional at the Union Carbide Bhopal facility and explain how lack of maintenance led to the Bhopal tragedy [4 marks] e) Explain the difference between flash point, flame point and auto-ignition temperature and describe how they can be determined experimentaly. (4 marks) 1) Describe the likely sequence of events leading to a BLEVE incident and explain why this is so catastrophic with reference to one of the incidents studied in the module. [4 marks) a) Explain how a centrifugal pump and a gear pump work and how this difference leads to different consequences when each type of pump is deadheaded ie. the pump is set to pump into a closed system [4 marks] h) Explain the concept of hazardous area zoning and how this is used to control Ignition sources to prevent fires and explosions in a petrochemical facility [4 marks]