🔍 Key Concepts

• Identify what type of device is shown in MO-0127 by reading the labels such as oil inlet/outlet, operating water, sludge tank, and effluent water tank. • Think about typical pre‑start checks for rotating machinery (like a centrifuge or separator) versus long‑interval maintenance tasks. • Distinguish between components that must be ready for safe operation (e.g., lubrication systems) and items that are only serviced occasionally (seals, foundation bolts, tank heating).

💭 Think About

• From the diagram, does the device include any gears, bearings, or rotating parts that would depend on a proper oil level before you run them? • Which of the answer choices describes something you would realistically do every time before starting, and which look more like periodic maintenance or special‑condition tasks? • Consider when the sludge tank actually receives sludge from the separator. Would it need to be heated before the first start, or only when handling accumulated sludge?

✅ Before You Answer

• Eliminate any options that sound like infrequent maintenance rather than a normal pre‑start check. • Ask yourself which step is most directly related to protecting moving parts from damage on startup. • Confirm that the choice you lean toward matches a standard step in manufacturer-recommended start‑up procedures for purifiers/separators.