What system provides emergency cooling when the jacket water overheats?

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Multiple Choice

What system provides emergency cooling when the jacket water overheats?

When engine jacket water starts to overheat, you need a backup way to remove heat quickly. The emergency cooling in this context is provided by auxiliary seawater. This means another seawater source is brought into the cooling loop to carry away the excess heat from the jacket water, either through the same heat exchanger or via a dedicated emergency path. This keeps the engine from overheating even if the main cooling flow is interrupted. The other options don’t fit the emergency jacket-water cooling role: an emergency boiler is for steam plant safety, freshwater cooling relies on a closed-loop that isn’t an immediate emergency heat sink for the jacket water, and condenser cooling is tied to turbine condensers, not engine jacket cooling.

When engine jacket water starts to overheat, you need a backup way to remove heat quickly. The emergency cooling in this context is provided by auxiliary seawater. This means another seawater source is brought into the cooling loop to carry away the excess heat from the jacket water, either through the same heat exchanger or via a dedicated emergency path. This keeps the engine from overheating even if the main cooling flow is interrupted.

The other options don’t fit the emergency jacket-water cooling role: an emergency boiler is for steam plant safety, freshwater cooling relies on a closed-loop that isn’t an immediate emergency heat sink for the jacket water, and condenser cooling is tied to turbine condensers, not engine jacket cooling.

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