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A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged.It should be ______.
A.replaced in its proper location if weight loss is no more than 15%
B.replaced in its proper location if weight loss is no more than 25%
C.labeled empty and recharged as soon as possible
D.labeled empty and replaced in its proper location regardless of weight
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更多 “ A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged.It should be ______.A.replaced in its proper location if weight loss is no more than 15%B.replaced in its proper location if weight loss is no more than 25%C.labeled empty and recharged as soon as possibleD.labeled empty and replaced in its proper location regardless of weight ” 相关考题
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Which of the following is (are)an advantage of a dry chemical extinguisher over a carbon dioxide extinguisher？The dry chemical extinguisher：Ⅰ．Has a greater range．Ⅱ．Provides a heat shield for the operator．A.ⅠonlyB.ⅡonlyC.Both Ⅰand ⅡD.Neither Ⅰ nor Ⅱ
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The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．A.Forming a cloud cover over the flamesB.Directing the gas at the base of the flames in a slow sweeping motionC.Discharging the carbon dioxide into the heart of the flamesD.Bouncing the discharge off an adjacent bulkhead just above the burning surface
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______, as the chemical extinguisher agent, should be used for an electric fire.A.dry chemical or foamB.foam or soda acidC.carbon dioxide or foamD.carbon dioxide or dry chemical
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A carbon dioxide fire extinguisher should be recharged ______.A.at least annuallyB.whenever it is below its required weightC.only if the extinguisher has been usedD.before every safety inspection
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A foam-type portable fire extinguisher is most useful in fighting a fire in ______.A.generatorsB.oil drumsC.the bridge controlsD.combustible metals
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A foam-type portable fire extinguisher would be most useful in combating a fire in ______.A.solid materials such as wood or bales of fiberB.flammable liquidsC.a piece of electrical equipmentD.combustible metallic solid
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A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in ______.A.generatorsB.oil drumsC.the bridge controlsD.combustible metals
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An advantage of a dry chemical over a carbon dioxide fire extinguisher is its ______.A.greater rangeB.effectiveness on all types of firesC.cleanlinessD.All of the above
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An advantage of an ABC dry chemical over a carbon dioxide fire extinguisher is ______.A.lack of toxicityB.the multipurpose extinguishing abilityC.burn-back protectionD.cooling ability
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An engine compartment gasoline fire requires which type of extinguisher?______.A.Carbon dioxideB.Dry chemicalC.FoamD.All of the above
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In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.A.invert the CO2 extinguisherB.squeeze the two trigger handles togetherC.remove the locking pinD.open the discharge valve
考题
单选题A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.A
replaced in its proper location if weight loss is no more than 15%B
replaced in its proper location if weight loss is no more than 25%C
labeled empty and recharged as soon as possibleD
labeled empty and replaced in its proper location regardless of weight
考题
单选题The discharge from a carbon dioxide fire extinguisher should be directed（）.A
at the base of the flamesB
at the center of the flamesC
to the lee side of the flamesD
over the tops of the flames
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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
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单选题A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in（）.A
generatorsB
oil drumsC
the bridge controlsD
combustible metals
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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
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单选题The type of extinguisher which should be used for an electricity fire is（）.A
foam or soda acidB
dry chemical or foamC
carbon dioxide or dry chemicalD
carbon dioxide or foam
考题
单选题A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.A
labeled empty and recharged as soon as possibleB
replaced in its proper location if weight loss is no more than 25%C
replaced in its proper location regardless of weightD
replaced in its proper location if weight loss is no more than 15%
考题
单选题When fighting a fire on a bulkhead using a portable carbon dioxide extinguisher，the stream should be directed at the（）.A
base of the flames，moving the horn from side to side，following the flames upward as they diminishB
top of the flaming area，moving the horn from side to side，following the flames downward as they diminishC
center of the flaming area，moving the horn vertically from top to bottomD
bottom of the flaming area，moving the horn vertically to the top following the flames upward as they diminish
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单选题Which types of portable fire extinguishers are designed for use on electrical fires?（）A
Dry chemical and carbon dioxideB
Foam (stored pressure) and soda-acidC
Carbon dioxide and foam (stored pressure)D
Dry chemical and soda-acid
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单选题Which action is routinely performed at the annual servicing and inspection of a dry-chemical cartridge-operated portable fire extinguisher?（）A
Insure the chemical is powderyB
Replace the cartridgeC
Pressure test the discharge hoseD
Test the pressure gauge for proper operation
考题
单选题A carbon dioxide fire extinguisher should be recharged（）.A
at least annuallyB
whenever it is below its required weightC
only if the extinguisher has been usedD
before every safety inspection
考题
单选题A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.A
tagged and restowed properly in its rackB
weighed and the charge loss recordedC
given to the chief engineer for rechargingD
tagged empty and stowed separately from charged extinguishers
考题
单选题Which portable fire extinguisher is normally recharged in a shore facility?（）A
Dry chemical (cartridge-operated)B
Water (cartridge-operated)C
Water (pump tank)D
Carbon dioxide
考题
单选题An advantage of a dry chemical over a carbon dioxide fire extinguisher is its（）.A
greater rangeB
effectiveness on all types of firesC
cleanlinessD
All of the above
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单选题Why should you wear a self-contained breathing apparatus before entering the engine room after the fixed CO2 system has been discharged to combat a major fire?（）A
Because carbon dioxide dilutes the oxygen concentration in the atmosphere and may cause asphyxiationB
Because carbon dioxide breaks down in a fire into carbon monoxide which may cause blood poisoning in the person breathing this gasC
Because carbon dioxide is a colorless and odorless gas that becomes highly toxic in the presence of high temperatures and will quickly incapacitate a person exposed to this gasD
This action is unnecessary as carbon dioxide is not poisonous nor toxic but is a relatively harmless gas
考题
单选题In order to discharge a C02 portable fire extinguisher , the operator must first（）.A
invert the CO extinguisherB
squeeze the two trigger handles togetherC
remove the locking pinD
open the discharge valve
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