Q9. Describe how an auxiliary boiler would be blown down and opened up for inspection. State the Precautions which should be taken during the inspection and when boxing up the boiler for service. Which parts require particularly close attention when opened up and describe the procedure for the setting of safety valves.
Q6. With respect to centrifuges.
(a) Explain the reasons which shall cause a purifier to overflow (6)
(b) What are reasons that induces vibration in a purifier" (4)
(c) Explain the process of desludging? Why is the purifier amperage an important parameter for the operator? (6)
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