Fire Prevention, Fire Fighting. Test 15

Instructions for 'Preparation for welding or hot work in cargo tanks' is laid down by the Norwegian Maritime Directorate. Which of the following requirements regarding welding or hot work corresponds to these instructions?

The safety delegate is responsible for all types of welding and hot work on board the ship.
Before welding or hot work is started, all persons taking part in the work shall meet.
An extract from the log book regarding the decision and the reason for it shall be sent to the Norwegian Maritime Directorate.
If it is decided that work shall be carried out, the decision and the reason for it shall be entered in the ship's log book.

If you have to carry out hot work close to a smoke detector in the engine room, what precautions should be taken?

Disconnect the smoke detector.
Notify Master, Deck officer and engineer in charge.The loop for this special sensor to be switched off and take normal precautions for hot work.
Notify deck officer in charge that a fire alarm may occur.
No special precautions except for having a watch man and a fire extinguisher available.

How does low expansion foam act as an extinguishing agent when dealing with oil fires?

The heat from the fire causes the foam to produce an inert gas which gradually extinguishes the fire.
By smothering only
By cooling only
By smothering and also providing some cooling

Tank top in engine room has a high quantity of oil residues floating around. When discovered, what action should be taken?

Start the fire pump.
Apply foam to the tank top to minimise the risk of fire.
Open the overboard valve and start the bilge pump.
Notify Ch.Eng., find cause of leakage, remedy the leakage and then immediately start cleaning of the tank top.

In case of a fire inside the Acetylene-line in the ac/ox gas welding equipment, what action is deemed necessary?

Close the valves on both the Acetylene and the Oxygen bottles.
Close Acetylene valve in the workshop.
Close valves on Acetylene bottle(s).
Close Oxygen valve.

What has to be done before the central gas extinguishing system is used on a fire in engine rooms, cargo holds or other confined spaces?

All openings to the compartment must be closed
Stop all engines
Close down boilers
Make sure that the compartment has been evacuated

Welding and use of open flames on board tankers in operation are subject to regulation laid down by the Norwegian Maritime Directorate (Norwegian Ship Control Legislation - NSCL). During preparations for welding or hot works, the following item shall always be checked:

Working performance and capacity of ventilating system.
Time since cleaning was carried out.
Inert gas composition.
Gas measurings performed in tanks where work is to be carried out.

'B' Class divisions in ships are constructed so that they are capable of preventing the passage of smoke and flame to the end of a standard fire test held for how many minutes?

15 minutes
45 minutes.
30 minutes.
60 minutes.

Why do we have to have an International Shorecoupling onboard? To be able to _____

Connect the firelines ship/shore
Connect the bunkerhoses to ship/shore
Connect sloplines ship/shore
Connect the cargohoses to shore

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