Ship Operations - Enclosed Space Entry

Question 1

What is the definition of an enclosed space?

Answer 1

Limited opening for entry and exit.
Inadequate ventilation.
Not designed for continous occupancy.

Question 2

Where can regulations regarding enlosed space entry be found?

Answer 2

Where can regualtions regarding enlosed space entry be found?

Question 3

Within what duration must entry into enclosed spaces drills be held?

Answer 3

For those with enclosed space entry duties, at least once every 2 months.

Question 4

List the standard procedure prior to enclosed space entry?

Answer 4

Toolbox Talk.
Allocation of duties to those with correct knowledge and training.
Ventilating the space to be entered.
Cordoning off the area for example if a tank on deck level has to be opened.
Testing the atmosphere with properly calibrated equipment.
Providing adequate lighting.
BA set on standby.
Communications tested.
Rescue plan in place for in the event of an emergency.
Completing a tisk assesment/permit in accordance with SMS

Question 5

What should the atmosphere testing instruments be able to detect?

Answer 5

Oxygen content.
Flammable gases and vapours.
Carbon monoxide.
Hydrogen Sulphide.

Question 6

What is the LFL?

Answer 6

Lower flammability limit which is the lowest percentage of a flammable vapour in air which makes it capable of igniting.

Question 7

What is the acceptable range of oxygen within an enclosed space, and what is the normal percentage in air?

Answer 7

19.5% - 23.5%

Normal perentage 20.9%