EK Motor Oct 2020 (Q2)

(a) Describe the cause and effect of bacterial attack on crankcase lubricating oil (6) (b) Explain how bacterial attack on crankcase oil may be detected (4) (c) Describe how a crankcase lubricating oil system may be returned to service following bacterial attack of the lubricating oil (6)

Lubricating oil & system

Oct 2020 (Q2)