單項選擇題（）is a/an aircraft used in SAR.

A.MRCC
B.SOSREP
C.MCA
D.3A


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1.單項選擇題Which statement about firefighting foam is TRUE?（）

A.Foam conducts electricity
B.To be most effective，foam should be directed at the base of the fire
C.Foam is most effective on burning liquids which are flowing
D.Foam can ONLY be used to extinguish class A fires

2.單項選擇題Which procedure should be followed when individuals are rescued in cold climates and suffer from hypothermia?（）

A.Give them brandy
B.Keep them in motion
C.Immerse them in a warm bath (105°F，40°C)
D.Cover them with an electric blanket set for maximum temperature

3.單項選擇題Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.

A.Foam should not be used on electrical fires
B.One kilo of low expansion foam solution produces much more foam
C.Foam is only efficient when it covers the top of burning combustibles
D.A stream of foam should be deflected off the deck in order to best agitate the fire

4.單項選擇題Which of the following is not a maritime perils?（）.

A.Stranding or grounding
B.Striking upon rocks or shoals
C.Collision between ships
D.Fire

5.單項選擇題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 charged
B.Release a small amount of CO2; if the CO2 discharges，the extinguisher is acceptable
C.Weigh the extinguisher and compare the weight against that stamped on the valve
D.Recharge the extinguisher at least once each year