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单选题
Foam-type portable fire extinguishers are more usefull in combating fires involving（）.
A
solid materials such as wood or bales of fiber
B
inflammable liquids
C
electrical equipment
D
metallic solids
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考题
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考题
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.A、commonB、oilC、electricalD、chemical
考题
单选题A foam-type portable fire extinguisher is most useful in fighting a fire in（）.A
generatorsB
oil drumsC
the bridge controlsD
combustible metals
考题
单选题Foam-type portable fire extinguishers are most useful in combating fires involving（）.A
solid materials such as wood or bales of fiberB
inflammable liquidsC
electrical equipmentD
metallic solids
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单选题Portable foam type fire extinguishers are most effective on（）.A
mattress firesB
oil firesC
wood firesD
All of the above
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单选题If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）A
Dry chemicalB
HalonC
Low velocity fogD
Steam
考题
单选题The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to （）.A
secure all openings to the tankB
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考题
单选题A foam-type portable fire extinguisher would be most useful in combating a fire in（）.A
soild materials such as wood or bales of fiberB
flammable liquidsC
a piece of electrical equipmentD
combustible metallic solids
考题
单选题Portable carbon dioxide fire extinguishers should be sent ashore to be recharged （）.A
when the remaining charge volume is less than 90 percent of the required VOLUMEB
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at each annual inspectionD
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单选题The required number and type of hand portable fire extinguishers for staterooms on cargo vessels is（）.A
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one B-IC
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recharged in the fieldD
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单选题Which types of portable fire extinguishers are designed for use on electrical fires?（）A
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考题
单选题If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?（）A
Fixed CO2,semi-portable CO2, then hand portable CO2B
Semi-portable CO2, fixedCO2, then hand portable CO2C
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考题
单选题Each hand portable fire extinguisher on a ship must be marked with（）.A
the name of the unit on which it is locatedB
the date that it was installed on the unitC
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考题
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if one or more tanks are fullC
when transferring cargoD
only when the barge is being towed
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单选题To determine the number of portable fire extinguishers required on an inspected vessel，you should check the（）.A
hot work permitB
Certificate of InspectionC
Safety of Life at Sea CertificateD
Muster List
考题
单选题Portable CO2 fire extinguishers should NOT be used to inert a space containing flammable liquids due to the danger of（）.A
the CO2 being inhaled by personnelB
reflash of burning liquidsC
vapor condensation on the extinguisherD
the discharge causing a static spark
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