海船船员考试
单选题Oil fires are best extinguished by（）.A cutting off the supply of oxygenB removing the fuelC cooling below the ignition temperatureD spraying with water
题目
cutting off the supply of oxygen
removing the fuel
cooling below the ignition temperature
spraying with water
相似问题和答案
第1题：
The emergency signal for fires is sounded on the ship’s whistle and general alarm as _____.
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
火灾紧急信号被船上的汽笛和警报发出连续10秒的鸣放。
第2题：
A fire of escaping liquefied flammable gas is best extinguished by ______.
A.cooling the gas below the ignition point
B.cutting off the supply of oxygen
C.stopping the flow of gas
D.interrupting the chain reaction
液化气体泄漏着火，最有效的扑救方法是断开气源。
第3题：
Dry powder is used to put out ________
A.electrical fire
B.oil fire
C.common fires
D.all kinds of fires
第4题：
cutting off supply of oxygen
removing the fuel
cooling below the ignition temperature
spraying with water
第5题：
（）extinguish oil and electrical fires with water.
- A、Do
- B、Did
- C、Never
- D、Isn’t
正确答案:C
第6题：
The fuel oil supply system to an automatic auxiliary boiler, will automatically shutdown if the boiler ______.
A.steam demand is high
B.salinity is high
C.safety valve simmers(爆发)
D.burner flame is extinguished
第7题：
As an extinguishing agent, foam ______.
A.conducts electricity
B.should be directed at the base of the fire
C.is most efffective on buring gases which are flowing
D.extinguishes by cooling oil fires below ignition temperature
对于灭火剂，泡沫灭火剂导电。
第8题：
Oil fires are best extinguished by ______.
A.cutting off the supply of oxygen
B.removing the fuel
C.cooling below the ignition temperature
D.spraying with water
灭油火的最好灭火器是切断氧气供应。
第9题：
Water can put out common fires, such as （）.
- A、wood，paper
- B、textile
- C、A+B
- D、oil
正确答案:C
第10题：
visual inspection of the elements
the pressure drop across the filter
high lube oil sump temperature
decrease in oil viscosity from the filter