🔍 Key Concepts

• Diesel engine protective devices such as overspeed, low oil pressure, and high lube oil temperature trips are there to prevent serious damage • The difference between immediate actions in an emergency versus a normal protective shutdown where the engine has already stopped safely • Safe procedures for checking high-temperature components and pressurized systems after a trip

💭 Think About

• If the engine shut down automatically on high lube oil temperature, what was the protective system trying to prevent from happening inside the engine? • What personal safety risks exist if you hurry to open crankcase doors, remove covers, or work around very hot, pressurized lubricating oil right after a shutdown? • On a docking tug, how do you balance the need for quick availability of the engine with the need to prevent further damage or injury after a high‑temperature shutdown?

✅ Before You Answer

• Check which options involve immediate restart after a high‑temperature safety trip and consider if that respects the purpose of the protective device • Check which options require you to inspect the engine while it is still very hot or under possible residual pressure, and think about standard safe‑engine‑room practice • Consider which option best matches typical manufacturer/engine-room procedures: cool down, make the area safe, then diagnose and correct the fault before restart