Tag: #biocidetreatment
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EK Motor Dec 2021 (Q7)
With reference to diesel engine lubricating oil and distillate fuel oil: (a) Describe the causes and effects of microbial attack (6) (b) Explain how bacterial attack may be detected (4) (c) Describe how an oil system may be returned to service following microbial attack (6) Dec 2021 (Q7)
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EK General Jul 2022 (Q5)
With reference to Marine Growth Prevention Systems, which incorporate impressed current anodes fitted in the sea boxes or sea strainers of main seawater cooling water systems: (a) explain how the system protects steel pipework against marine growth and corrosion; (6) (b) explain how the effectiveness of the system can be ascertained; (2) (c) state the…
