Once a scavenge fire is detected, fuel should be shut off from the affected cylinders and cylinder lubrication increased （） the risk of seizure.

相似题目

• Which of the following statements is not true concerning symptom of a fire in the scavenge air box?（）

  A . an increase in the exhaust temperature of the affected cylinder B . the turbocharger may surge C . the explosion pressure in all cylinders will rise violently D . smoke from the turbocharger air inlet filter will be see

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• Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）

  A . Use the CO system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the CO system D . Evacuate the engine room and use the fire main system

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• If a scavenge fire starts, the engine must be put to “（）” and the fuel must be taken off the cylinders affected by the fire.

  A . stop engine B . finished with engine C . dead slow ahead D . dead slow aster

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• To avoid scavenge fires occurring the engine timing and equipment maintenance （）.

  A . should be correctly carried out B . should correctly be taken place C . should carded with care D . must to carry out with great care

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• During a fire drill on a ship，what action is required?（）

  A . Start each fire pump B . Launch and run a lifeboat C . Inventory rescue and fire equipment D . Inspect fire hose

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• The scavenge air receiver is of a simplified and modular design with integral non-return flaps, hanging cooler and two auxiliary air blowers（）

  A . dozens B . parcels C . bundles D . gallo

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• Scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished（）

  A . during the valve overlap period B . with only the exhaust valve open C . at a pressure below atmospheric D . without cooling the cylinders or pisto

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• Once he starts a job, he won't stop（）it is finished.

  A . till B . after C . before D . until

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• Your vessel is equipped with a fixed C02 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）.

  A . Use the C0 system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the C0 system D . Evacuate the engine room and use the fire main system

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• Clearance volume scavenging in a turbocharged, four-stroke/cycle diesel engine is accomplished （）.

  A . during the valve overlap period B . with only the exhaust valve open C . at a pressure below atmospheric D . without cooling the cylinders or pisto

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• During a fire drill on a vessel,what action is required?（）.

  A . Start each fire pump B . Launch aand run a lifeboat C . Inventory rescue and fire equipment D . Inspect fire hose

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• A large oil fire is best extinguished with（）

  A . soda acid B . foam C . CO D . sand

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• Each hand portable，semi-portable and fixed fire extinguishing unit on a ship must be tested and inspected at least once every（）.

  A . six weeks B . six months C . twelve months D . two year

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• There is a fire aft aboard your vessel. To help fight the fire，you should（）.

  A . put the wind off either beam B . head the bow into the wind and decrease speed C . put the stern into the wind and increase speed D . put the stern into the wind and decrease speed

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• To avoid scavenge fires （） the engine timing and equipment maintenance should be correctly carried out.

  A . occurred B . occurring C . not happening D . occur

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• Once a fire is detected the engine should be slowed downOn no account （）.

  A . the trunking should be opened up B . should the trunking be opened up C . the trunking should not be opened up D . should the trunking not be opened u

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• Once a scavenge fire is detected the engine （）.

  A . will be speeded up B . should be slowed down C . must slow down D . have to be slow dow

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• Which is a disadvantage of Halon as a fire extinguishing medium?（）

  A . Conducts electricity B . Difficult to store C . Large volume necessary to be effective D . Ineffective in powdered metal fire

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• Fire protection regulations for towing vessels require that all crew members participate in drills and receive instruction at least once a month. Who is responsible for ensuring that this takes place?（）

  A . The Officer in Charge，Marine Inspection B . The Master，or person in charge of the vessel C . The vessel's owner or manager D . The company's port captain or port engineer

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• A foam-type portable fire extinguisher is most useful in fighting a fire in（）.

  A . generators B . oil drums C . the bridge controls D . combustible metal

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• A class "C" fire is burning （）.

  A . diesel oil B . magnesium C . dunnage D . electrical insulatio

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• The class of fire on which a blanketing effect is essential to extinguish the fire is （）.

  A . class A B . class B C . class C D . class D

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• If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to （）the engine.

  A . stop B . start C . speed up D . slow dow

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