When an oil fire has been extinguished, the surface of the oil should be kept covered with foam to prevent （）.

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• Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）

  A . Commence draining that tank as quickly as possible B . Seal off all vents to that tank C . Activate the CO system to that tank D . Shut off the steam heating coil

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• The longer an oil fire is permitted to burn, the （）.

  A . harder it is to extinguish B . easier it is to extinguish C . less chance there is of re-ignition D . easier it is to control

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• When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）

  A . Foam B . Solid stream water nozzle C . All-purpose nozzle D . Carbon dioxide

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• A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.

  A . tagged and restowed properly in its rack B . weighed and the charge loss recorded C . given to the chief engineer for recharging D . tagged "empty" and stowed separately from charged extinguisher

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• When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results（）.

  A . In the vessel's Official Logbook B . On the compass deviation card C . In the compass deviation log D . On a Napier diagram

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• How does foam extinguish an oil fire?（）

  A . By cooling the oil below the ignition temperature B . By removing the fuel source from the fire C . By excluding the oxygen from the fire D . By increasing the weight of the oil

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• Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, could result in （）

  A . increased fuel consumption B . increased feed water consumption C . fuel pump failure D . combustion control system failure

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• The heavy-duty lubricating oil with chemical has been widely introduced in recent years（）

  A . additives B . behavior C . coolant D . desiccant

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• A vessel has been damaged by fire. The survey shows the cost of repairs will exceed the value of the repaired vessel. This is an example of a(n)（）.

  A . constructive total loss B . salvage loss C . actual loss D . preferred lo

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• When fueling has been completed（）.

  A . the fuel tank fill pipe should be left open to allow vapors to vent from the tank B . the engine should be started immediately to prevent vapor lock in the fuel line C . all hatches should be opened and all compartments should be ventilated D . open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment

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• Too much air in the furnace of an oil-fired boiler would be indicated by （）.

  A . yellowish flame B . golden yellow flame C . white flame D . brilliant white flame

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• After a fire has been extinguished in a closed space, personnel may safely enter the space when （）.

  A . smoke density has been decreased sufficiently to see the bulkhead opposite the compartments entrance B . a lifeline and explosion proof flash light are used C . all smoke and toxic fumes are removed and an adequate oxygen supply is present D . overhaul has been completed to remove any possible source of re-ignitio

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• Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.

  A . sounding the tank B . waiting for the vessel to list C . examining tank boundaries D . checking fuel oil strainer

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• When oily ballast has been pumped overboard，an entry must be made in the（）.

  A . Oil Record Book B . Official Logbook C . deck rough log D . engine rough log

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• When reentering an engine room that has been flooded with CO2, the investigating team should initially（）.

  A . leave the access door partially open B . enter from the lowest level C . enter from the highest level D . attempt to operate machinery

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• A small fuel spillage has occurred during helicopter refueling. After the leak has been stopped and fire-control personnel have been notified and are standing by，the next step is to（）.

  A . proceed with fueling operation B . have helicopter move to a safer location C . wash spilled fuel away with a flood of water D . clean spilled fuel with rag

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• When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.

  A . filter to remove the fuel oil B . use the settler to remove the fuel oil C . remove the fuel oil by centrifuging D . drain and then renew the lube oil supply

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• The furnace of an oil fired boiler should be （） before the operating burner is lit.

  A . filled with water B . purged C . cleared of air D . None of the above is true

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• As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （） (1) secure oil to fires (2) increase feed pump pressure

  A . （1） B . （1）and（2） C . （2） D . neither（1）nor（2）

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• Man has been polluting the earth from the time he first made fire, washed his clothes in the river and threw his waste on the ground. When land was used up or water became (1) , man moved on to another place.

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• John has been a smoker for 20 years and does not believe that smoking is bad for him. He often says “My grandfather smoked all his life and died when he was 92”. What sort of cognitive bias is this an example of?

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• When a manuscript has been accepted for publication, it will be passed to an editor for detailed_____(选词填空：scrutiny; constrict)

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• As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: (1) secure oil to fires; (2) increase feed pump pressure.

  A.(1) B.(1) and (2) C.(2) D.neither (1) nor (2)

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