Multiple fire pumps may be used for other purposes provided that one pump is（）.

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• On a ship，a fire pump may be used for other purposes if（）.

  A . the other services are run off a reducing station with a pressure gage B . a separate fire pump is available for use on the fire main C . all other services are operated by a manifold near the pump D . All of the above

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• Exhaust temperature increases in all cylinders, the possible cause may be（） (1) increased scavenging air temperature (2) air in fuel pumps and fuel valves (3) fouling of air and gas passages

  A . (1)+(2) B . (1)+(3) C . (2)+(3) D . (1)+(2)+(3)

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• On a bulk chemical carrier，water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called（）.

  A . acrylic acid B . benzene C . oleum D . vinyl toluene

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• Fire detecting systems on merchant vessels may be arranged to sense （）.

  A . smoke B . rate of temperature rise C . ionized particles D . all of the above

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

  A . a low velocity spray applicator B . a water spray or solid stream C . at least two spray patterns of water D . at least 25 psi delivered pressure

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• Fire and abandon ship stations and duties may be found on the（）.

  A . crewman's duty list B . certificate of inspection C . shipping articales D . muster list

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• The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing（）.

  A . 45°upward B . vertically upward C . vertically downward D . all of the above

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• The reciprocating pump can’t draw water from a tank may be caused by （）.

  A . leaky pipe B . opened inlet valve C . too much water in tank D . None of the above

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• The injection may be delayed, （）the pumps are in good order, if the fuel lines to the injection valves have not been cleared of air.

  A . because B . though C . since D . until

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• If the action of the engine indicates that some of the cylinders are not firing, the ones affected may be determined by watching （）.

  A . the bad smoke B . the smoky exhaust C . the exhaust temperature D . the peak pressure

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• Fire fighting equipment requirements for a particular vessel may be found on the（）.

  A . Certificate of Inspection B . Certificate of Seaworthiness C . Classification Certificate D . Certificate of Registry

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• A towing vessel’s fire detection system may be certified to comply with the Coast Guard’s towing vessel fire protection regulations by（）.

  A . a Coast Guard inspector B . a registered professional engineer C . the owner or Master of the vessel D . a licensed electricia

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• The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than （） of the total bilge pumping capacity.

  A . one-third B . two-thirds C . one-fourth D . two-fourth

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• A distorted furnace in a fire-tube auxiliary boiler may be the result of （）

  A . firing for extended periods in the low fire mode B . overheating, due to waterside deposits C . varying the water level above the crown sheet D . carrying excessive alkalinity in the boiler water

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• A firebox explosion in an automatically fired auxiliary boiler may be the result of （）

  A . excessive purging before lighting off B . insufficient trail for ignition period C . a faulty transformer in the ignition circuit D . insufficient purging before lighting off

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• A galley grease fire on the stove may be extinguished using（）.

  A . water B . foam C . the range hood extinguishing system D . fire damper

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• A fire pump may be used for other purposes if（）.

  A . the other services are run off a reducing station with a pressure gage B . one of the required pumps is kept available for use on the fire main system at all times C . no relief valves are installed D . all of the above conditions are met

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• A water pump can not supply water after startingIt may be caused by （）.

  A . closed discharge valve B . broken pipe line C . worn shaft D . both A and B

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• If a hydraulic pump is overheating, the cause may be （）.

  A、excessive internal leakage in the pump B、low discharge pressure and fluid flow C、excessive fluid level in the hydraulic reservoir D、operation of the pump at 100% efficiency

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• A fire may be spread by which of the following means?（）

  A . Conduction of heat to adjacent surfaces B . Direct radiation C . Convection D . All of the above

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• If the pump for a hydraulic anchor windlass is overheating, the cause may be （）.

  A . excessive drive motor speed B . excessive pump discharge pressure C . too low of a tilting box angle D . insufficient drive motor speed

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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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• 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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• If there has been a fire in a closed unventilated compartment it may be unsafe to enter because of （）.

  A . unburned carbon particles B . excess nitrogen C . a lack of oxygen D . excess hydroge

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