Oil Tankers

Question 1

What is the use of Inert Gas?

Answer 1

To release a non-combustible gas into a space (cargo tank) to reduce the amount of hydrocarbon and/or Oxygen in the space to reduce risk of Combustion/Explosion

Question 2

What are the methods that are available of creating Inert Gas?

Answer 2

1. Flue Inert Gas
2. Inert Gas Generator
3. Nitrogen Bottles

Question 3

Label each component of the IG System…

Answer 3

Question 4

Precautions to take before loading oil cargo…

Answer 4

• Comms established
• Smoking & naked light restrictions
• Fire fighting equipment ready
• Oil spill equipment ready
• Manifold properly connected
• Drip tray in place
• Routine checks arranged
• Emergency signals agreed
• Emergency escape established
• Equipment (IG, COW etc) tested
• Scuppers plugged

Question 5

Precautions to take during oil tanker cargo loading/discharging operations…

Answer 5

• IG system operational
• Ship Shore Safety Checklist complete prior
• Cargo tanks positive pressure
• Moorings
• Safe & secure access
• Scuppers
• Comms
• Personnel monitoring load/discharge
• Emergency preparedness
• Stability