🔍 Key Concepts

• Fuel oil heaters and steam traps and how they can leak into drains • Difference between fuel oil and lube oil systems and their drain arrangements • Why the presence of large quantities of fuel oil in a drain inspection tank is a safety and pollution concern

💭 Think About

• If you suddenly see a lot of fuel oil in a drain inspection tank, what are the most likely sources on a typical engine room system? • Which listed actions would help you both stop more fuel from entering the drain and identify/isolate the leaking equipment? • Is there any option that would clearly NOT address fuel oil getting into drains, or are they all potentially reasonable responses?

✅ Before You Answer

• Check which options deal with fuel oil heaters/steam traps, the most common source of fuel oil in drains. • Think about whether lube oil equipment might also route leakage to the same inspection tank, and what securing it would accomplish. • Before choosing, verify whether multiple actions could reasonably be done together when responding to a suspected leak.