🔍 Key Concepts

• Starting air system design purpose on motor ships • Relationship between air receivers (starting air bottles) and starting sequence for main engine(s) • Regulatory idea of being able to restore starting air within a reasonable time after use

💭 Think About

• Ask yourself: What is the primary safety reason for fitting two starting air compressors instead of one? • Which option describes a system capability over a period of time, rather than a momentary or ideal condition? • Which choice best supports the idea that, after several start attempts, you can reliably prepare the system again without excessive delay?

✅ Before You Answer

• Identify which option refers to recharging the air receivers rather than just maintaining or topping off pressure. • Decide which choice most closely matches a time-limited requirement for restoring starting air readiness. • Eliminate any answers that describe conditions that are too vague (e.g., "at all times") or more than regulations usually demand (e.g., starting multiple engines simultaneously).