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单选题
CO2 extinguisher is for an electrical fire.（）
A
二氧化碳灭火器用于灭普通火。
B
二氧化碳灭火器用于灭电火。
C
二氧化碳灭火器用于灭油火。
D
二氧化碳灭火器用于灭木质火。
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更多 “单选题CO2 extinguisher is for an electrical fire.（）A 二氧化碳灭火器用于灭普通火。B 二氧化碳灭火器用于灭电火。C 二氧化碳灭火器用于灭油火。D 二氧化碳灭火器用于灭木质火。” 相关考题
考题
On a vessel, a CO2 extinguisher is checked by ______.A.reading the gage pressureB.weighing the extinguisherC.discharging a small amount of CO2D.seeing if the seal has been broken
考题
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
考题
A portable dry chemical fire extinguisher discharges by ______.A.gravity when the extinguisher is turned upside downB.pressure from a small CO2 cartridge on the extinguisherC.air pressure from the hand pump attached to the extinguisherD.pressure from the reaction when water is mixed with the chemical
考题
After using a CO2 portable extinguisher, it should be ______.A.put back in service if some CO2 remainsB.hydrostatically testedC.retaggedD.Recharged
考题
How do you operate a portable CO2 fire extinguisher?______.A.Point the horn downB.Turn cylinder upside-downC.Break the rupture discD.Pull pin, squeeze grip
考题
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
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.A、commonB、oilC、electricalD、chemical
考题
CO2 extinguisher is for an electrical fire.（）A、二氧化碳灭火器用于灭普通火。B、二氧化碳灭火器用于灭电火。C、二氧化碳灭火器用于灭油火。D、二氧化碳灭火器用于灭木质火。
考题
单选题A “fifteen-pound” CO2 extinguisher is so called because（）.A
there are fifteen pounds of CO2 in the containerB
the container，when full，weighs fifteen poundsC
the pressure at the discharge nozzle is l5 psiD
the empty container weighs fifteen pounds
考题
单选题After using a CO2 extinguisher on a ship，it should be（）.A
put back in service if some CO2 remainsB
hydrostatically testedC
retaggedD
recharged
考题
单选题After using a C02 portable extinguisher,it should be（）.A
put back in service if some CO2 remainsB
hydrostatically testedC
retaggedD
recharged
考题
单选题Never extinguish oil and electrical fires with （）.A
waterB
foam extinguisherC
CO2 extinguisherD
portable extinguisher
考题
单选题To determine if a CO2 fire extinguisher is fully charged，you would（）.A
Operate the trigger valveB
Weigh the extinguisherC
Test with a pressure gaugeD
Read the date of last test
考题
单选题A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.A
used at the earliest opportunityB
hydrotestedC
rechargedD
weighed again in one month
考题
单选题How do you operate a portable CO2 fire extinguisher?（）A
Point the horn downB
Turn cylinder upside-downC
Break the rupture discD
Pull pin，squeeze grip
考题
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If you are unable to stop a diesel engine by any other means，you should（）.A
discharge a CO2 extinguisher in the air inletB
pull off the distributor capC
secure the jacket waterD
secure the starting air supply valve
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A portable dry chemical fire extinguisher discharges by（）.A
gravity when the extinguisher is turned upside downB
pressure from a small CO2 cartridge on the extinguisherC
air pressure from the hand pump attached to the extinguisherD
pressure from the reaction when water is mixed with the chemical
考题
单选题关闭所有防火门并使用干粉灭火器。（）A
Close all fire doors and use the dry powder extinguisher.B
Close all fire doors and use the foam extinguisher.C
Close all fire doors and use the CO2 extinguisher.D
Close all fire rooms and use the dry powder extinguisher.
考题
单选题When fighting an electrical fire, you should first （）.A
stop ventilation to the areaB
stop the vesselC
secure electricity to the circuitD
apply CO2 to the fire
考题
单选题Which types of portable extinguisher should you watch for the reflash of the fire?（）A
foam and waterB
CO2 and dry chemicalC
dry chemical and waterD
foam and CO2
考题
单选题An ABC dry chemical fire extinguisher would be LEAST effective against a fire in（）.A
a mattressB
spilled liquids such as oil or paintC
high voltage electrical gearD
a trash can
考题
单选题Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?（）A
Check the tag to see when the extinguisher was last chargedB
Release a small amount of CO2; if the CO2 discharges，the extinguisher is acceptableC
Weigh the extinguisher and compare the weight against that stamped on the valveD
Recharge the extinguisher at least once each year
考题
单选题A CO2 portable extinguisher is annually checked by（）.A
reading the gage pressureB
weighing the extinguisherC
discharging a small amount of CO2D
seeing if the seal has been broken
考题
单选题What is the best title for this passage?A
The Dangers of a Fire.B
The Cause of a Fire.C
Learn to Use a Fire Extinguisher.D
Be Ready for a Fire.
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