海船船员考试
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
题目
soild materials such as wood or bales of fiber
flammable liquids
a piece of electrical equipment
combustible metallic solids
参考答案和解析
相似问题和答案
第1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 fiber
B.flammable liquids
C.a piece of electrical equipment
D.combustible metallic solid
便携式泡沫灭火器对扑灭可燃液体着火最有效。
第2题：
A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in ______.
A.generators
B.oil drums
C.the bridge controls
D.combustible metals
便携式泡沫储备气压式灭火器最适宜扑灭油桶火。
第3题：
The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．
A.Forming a cloud cover over the flames
B.Directing the gas at the base of the flames in a slow sweeping motion
C.Discharging the carbon dioxide into the heart of the flames
D.Bouncing the discharge off an adjacent bulkhead just above the burning surface
第4题：
Fire in the cabins. Close all fire doors and use the （）powder extinguisher.
- A、dry
- B、wet
- C、foam
- D、portable
正确答案:A
第5题：
Foam-type portable fire extinguishers are most useful in combating fires involving ______.
A.solid materials such as wood or bales of fiber
B.inflammable liquids
C.electrical equipment
D.metallic solids
泡沫型便携式灭火器对于陷于易燃性液体火灾的扑灭最有效。
第6题：
A portable dry chemical fire extinguisher discharges by ______.
A.gravity when the extinguisher is turned upside down
B.pressure from a small CO2 cartridge on the extinguisher
C.air pressure from the hand pump attached to the extinguisher
D.pressure from the reaction when water is mixed with the chemical
便携式干粉灭火器通过灭火器内二氧化碳小气瓶的压力来排放药剂。
第7题：
An ABC dry chemical fire extinguisher would be LEAST effective against a fire in ______.
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
干粉灭火机对席子着火的扑救效果最差。
第8题：
A foam-type portable fire extinguisher is most useful in fighting a fire in ______.
A.generators
B.oil drums
C.the bridge controls
D.combustible metals
便携式泡沫灭火器对扑灭油桶着火最有效。
第9题：
How do you operate a portable CO2 fire extinguisher?______.
A.Point the horn down
B.Turn cylinder upside-down
C.Break the rupture disc
D.Pull pin, squeeze grip
你如何操作CO2灭火器？拉出锁销，挤压把手
第10题：
Close all fire doors and use the （）（干粉灭火器）.
- A、dry powder extinguisher
- B、foam extinguisher
- C、CO2 extinguisher
- D、portable extinguisher
正确答案:A