Surveys

Question 1

What is inspected during a 5 year equipment survey?

Answer 1

Also known as a continuous survey, 20% of the equipment is inspected every year.

The equipment that is covered over the 5 years are:
- M/E
- D/G
- Compressors
- Pressure vessels
- Electrical distribution
- Shafts
- Steering gear
- Pumps

Question 2

What would they look at on the MOB launching arrangements?

Answer 2

Referring to MGN 71
- Proof test,
- Dynamic load test,
- Quick release hook inspections, testing of release off load,
- Emergency release on load.
- Types of brakes on winching arrangement, centrifugal brake
to slow descent and a weighted friction brake

Question 3

On a 5 year hull survey would the shaft come out?

Answer 3

It is upto the surveyor but normally yes

Question 4

What are the cutlass bearing clearances?

Answer 4

5% of the shaft diameter

Question 5

What are the rudder bump clearances?

Answer 5

For a new build it can be 1.5mm, A vessel in service is allowed upto 6mm, after this the bush shall be renewed

Question 6

How would you test a ship side valve without removing?

Answer 6

Start with a visual inspection, looking for a signs of damage or wear.

Check the valves functionality by opening and closing the valve several times.

Seal the valves inlet and outlet and perform a hydrostatic and pneumatic pressure test, monitoring for any drops in pressure.

Carry out a non destructive test by using dye penetrant to identify any cracks.

Question 7

What is the surveyor looking for in a load line survey?

Answer 7

• Verifying documents ( Stability book and Certificates)
• Vessels freeboard
• Vessels load line markings
• Vessel water integrity ( Watertight doors, hatches and compartments)
• Freeing port shutters
• Ventilation and pipework
• Ship structure

Question 8

Is a load line survey conducted by class or flag?

Answer 8

Classification