A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.

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• Before using a fixed CO2 system to fight an engine room fire，you must（）.

  A . secure the engine room ventilation B . secure the machinery in the engine room C . evacuate all engine room personnel D . All of the above

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• Although lube oils used in the main lubricating service systems should have a relatively high flash point to avoid ignition, they can create smoke and fire hazards when they （）.

  A . are exposed to a vacuum B . come in contact with extremely hot surfaces C . are reduced in temperature to just above the pour point D . become extremely agitated or aerated

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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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• In order to release CO2 to the machinery spaces from a fixed fire extinguishing system, you must（）.

  A . actuate an alarm and open the engine room control valve B . actuate an alarm and open the engine room CO releasing valve C . open the engine room control valve and shut off engine room ventilation fans D . open the engine room control valve and then the CO releasing valve

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• A ship helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least（）.

  A . 30 gallons per minute B . 40 gallons per minute C . 50 gallons per minute D . 60 gallons per minute

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• In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by （）.

  A . convection B . conduction C . radiation D . ventilatio

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• When must a dry chemical fire extinguisher be recharged?（）

  A . After each use B . When the air temperature exceeds 90°F C . Every 6 months D . Every 12 month

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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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• Each fire pump on a tanker must have a pressure gauge located at（）.

  A . the pump discharge B . the manifold connection C . each fire station discharge D . the pump statio

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• A branch line valve of a fire extinguishing system on a ship must be marked with the（）.

  A . maximum pressure allowed at that branch B . name of the space or spaces which it serves C . date of the last maintenance inspection D . pressure needed to maintain an effective stream at that point

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• Each part of the fire-main system located on an exposed deck must be（）.

  A . protected against freezing B . locked to prevent theft C . numbered sequentially D . pressurized at all time

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• Overhauling a fire in the living quarters on a vessel must include（）.

  A . opening dead spaces to check for heat or fire B . evacuation of the vessel C . sounding the "all clear" signal D . operation of the emergency generator

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• Each hand portable fire extinguisher on a ship must be marked with（）.

  A . the name of the unit on which it is located B . the date that it was installed on the unit C . the names of the individuals qualified to use it D . an identification number different from other extinguishers on the unit

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• Which space(s) on your cargo vessel must have a fire detection system?（）

  A . Any compartment containing explosives B . Any compartment adjacent to one containing explosives C . Enclosed spaces which are specially suitable for vehicles D . All of the above

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• Foam extinguishes a fire mainly by（）.

  A . cooling B . chemical action C . smothering D . inerting the air

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• Automatic fire dampers in ventilation systems are operated by a（）.

  A . remote operated valve B . fusible link C . CO system pressure switch D . heat or smoke detector

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• Which of the following components provides a direct source of seawater for the fire main system?（）

  A . Rose box B . Sea chest or spool piece C . Sluice valve D . Fire pump stuffing box

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• What is the most vulnerable part of the fire main system on board an offshore rig?（）

  A . The fire pump B . Exposed hard piping C . The hydrant valve D . The fire hose

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• The discharge side of every fire pump must be equipped with a（）.

  A . gate valve B . pressure gauge C . check valve D . strainer

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• The signal for fire alarm on a ship must be indicated（）.

  A . at each alarm bell B . at each alarm actuator C . near all exits D . on the station bill

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• A cutoff valve in the fire-main system of a ship may be closed to protect the portion of the system on an exposed deck from（）.

  A . damage from crane operations B . being used for wash down purposes C . accidental diversion of flow to wrong location D . freezing

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• Each fire pump on a ship must have a pressure gauge located at（）.

  A . the pump discharge B . the manifold connection C . each fire station discharge D . the pump statio

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