Which offshore supply boat diesel fuel oil...

Question 1 / 2707066636eef28f7522a1c51faf9

Question 1 of 2707066636eef28f7522a1c51faf9

Which offshore supply boat diesel fuel oil day tank condition would be most likely to result in water contaminated fuel?

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Question 1 of 27070

Which offshore supply boat diesel fuel oil day tank condition would be most likely to result in water contaminated fuel?

🔍 Key Concepts

• How condensation forms inside partially filled fuel tanks • Effect of tank level (high vs low) on the air space (ullage) above the fuel • Role of relative humidity in creating water droplets on cool tank surfaces

💭 Think About

• Think about which situation gives the largest air space above the fuel and what happens when that moist air cools down at night or with temperature changes. • Consider whether high or low humidity air will deposit more water when it cools and condenses on the inside of the tank. • Ask yourself: in which combination of tank level and humidity will the most moisture repeatedly enter and leave the tank and end up in the fuel?

✅ Before You Answer

• Identify the condition that creates the greatest volume of moist air above the fuel inside the tank. • Determine when the dew point is most likely to be reached, causing water to condense on internal tank surfaces. • Confirm which option would lead to the most frequent or heaviest condensation over time, not just in a single event.

Question 1 of 27070

Which offshore supply boat diesel fuel oil day tank condition would be most likely to result in water contaminated fuel?

Maintaining relatively high day tank levels when the relative humidity of the atmosphere is high.

Maintaining relatively high day tank levels when the relative humidity of the atmosphere is low.

Maintaining relatively low day tank levels when the relative humidity of the atmosphere is high.

Maintaining relatively low day tank levels when the relative humidity of the atmosphere is low.

Question 1 / 2707066636eef28f7522a1c51faf9

Question 1 of 2707066636eef28f7522a1c51faf9

Which offshore supply boat diesel fuel oil day tank condition would be most likely to result in water contaminated fuel?

Back

Question 1 of 27070

Which offshore supply boat diesel fuel oil day tank condition would be most likely to result in water contaminated fuel?