Test Flashcards
What is the role of the Marine Engineering logistics log
Has info on all fuels on board
A key element of providing a basis to a ‘good fuel system management’
How regularly should the log be sighted?
Monthly by MEO
What is the responsibility of fuel managers regarding the log?
All paperwork has been filled in correctly and mistakes are not made
How many sections make up the ME Logistics Log
12 sections
Describe a Class 1 petroleum product
- Flashpoint below 21 degrees
- Highly Flammable
- Gasoline
Describe a Class 2 petroleum product
- Flashpoint between 21-55 degrees
- Flammable
- Kerosene, White spirits and PX24
Describe a Class 3 petroleum product
- Flashpoint between 55-100 degrees
- Combustible
- Dieso, AVCAT/FSII
What are the 4-10 section headings of the COSHH data sheet?
4: First Aid
5: Fire Fighting
6: Accidental release measures
7: Handling and storage
8: Exposure controls and personal protection
9: Physical and Chemical properties
10: Stability and reactivity
Name the 5 contaminants which may affect the operation of fuel
- Water
- Dirt
- Sodium
- Surfactants
- MBC/ SRB
How can fuel be contaminated by water?
- Embarked during fuelling
- Compensating water
- Condensation in tanks
- Leaks in tanks
How does dirt get into fuel?
- Transferred from somewhere or from the degradation of fuel
How does sodium contaminate fuel?
Sodium can contaminate water during fueling in rough seas
What is a surfactant and how can it be removed?
- surfactant: reduces the surface tension between free water & fuel
- It reduces or stops the mechanism of coalescing
- Can not be removed from fuel
- However, the contaminated tank can be put in quarantine until it can be discharged alongside
What are the methods of refuelling at Sea/In Harbour
- QRC (dieso)
- ASB (dieso)
- Probe ( Dieso)
- 6” screw connection (dieso and avcat)
What are the advantage of compensating tanks?
- Improved stability
- Removal of any ballasting requirement
What are the disadvantages of compensating tanks?
- Risk of seawater contamination
- Increased risk of corrosion in fuel tanks
- Tank top leakage hazard (due to pressurised fuel tanks, difficult to repair without isolating)
- Reduced ability to correct list if battle damage is sustained
- Risk of discharging fuel overboard when refuelling
- High refuelling rates are difficult to achieve
- The ship is continuously in the “deep” condition, which adversely affects fuel consumption and ship speed.
Steps for the embarkation of Fuel in the harbour or at sea
Comms links between:
- Supplying point and receiving point
- Receiving point and fuelling control point
- Fueling control point and tank filling points
- Consider the use of secondary communication links
RAS clothing issued: hard hats, goggles, gloves etc. firefighting equipment rigged and proved.
List 2 or 3 reason and explain precautions to be taken during fuelling?
- Fuel expansion - Fill 95% to account for temperature increases
- Fire and explosion - Don’t handle explosives and have FF equipment ready and proven, no smoking or naked lights (to be piped)
- Over pressurised hoses - Adequate warning to be supplied before filling valves are shut to the supply point
- Informing personnel - to ensure all personnel are aware of hazards, pipe every 15 mins
- Prevention of fuel spills - ‘Prevention of Oil Pollution’