Fuel oil tank vents are fitted with...

Question 1 / 270705eccef9cbacbc34ba4d45c39

Question 1 of 270705eccef9cbacbc34ba4d45c39

Fuel oil tank vents are fitted with corrosion resistant screens to prevent __________.

Question 1 of 27070

Fuel oil tank vents are fitted with corrosion resistant screens to prevent __________.

🔍 Key Concepts

• Fuel oil tank vent design and purpose on tank vessels • Role of flame screens / corrosion‑resistant gauze in vent lines • Movement of vapors vs. flames vs. liquid through a vent opening

💭 Think About

• What normally needs to pass freely through a fuel tank vent during loading, discharging, and temperature changes? • What hazard from outside the tank is especially dangerous if it can travel back into the tank through the vent? • Which options would interfere with the primary safety function of a vent (pressure equalization) if they were the main purpose of the screen?

✅ Before You Answer

• Confirm that the vent must still allow pressure relief and vapor flow to avoid tank over/under‑pressure • Consider which option best matches the purpose of a screen made of corrosion‑resistant metal gauze often called a flame screen • Eliminate any choice that would trap vapors inside the tank or block normal venting, as that would be unsafe

Question 1 of 27070

Fuel oil tank vents are fitted with corrosion resistant screens to prevent __________.

flames entering through the tank vent

escape of flammable vapors

corrosion in the tank vent

damage to the ball check