Which of the following statements represents acceptable practice for heavy fuel oil settling tank heating?

Question

Accepted Answer

When filled, the heat source to the settling tank should be cut in until the ideal settling temperature is reached, then secured allowing the fuel to remain undisturbed for as long as possible.

Answer

When filled, the heat source to the settling tank should be cut in and maintained at all times regardless of the actual temperature of the tank contents.

Answer

When filled, the heat source to a settling tank should be cut in and out often enough to maintain the ideal settling temperature and not allow the temperature to gradually fall.

Answer

When filled; no heat should be applied to the settling tank as gravity alone is sufficient to provide for proper settling as long as the fuel is not allowed to drop below the pour point temperature.

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