單項(xiàng)選擇題

When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio（）.

A.a distinctive signal
B.the Morse Code signal for SOS
C.a computerized voice announcement of Mayday
D.your vessel's International Radio Call Sign

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單項(xiàng)選擇題

What is the primary purpose of a splint applied in first aid?（）

A.Control bleeding
B.Reduce pain
C.Immobilize a fracture
D.Reset the bone

單項(xiàng)選擇題

What is the normal length of anchor cable used to anchor a vessel?（）

A.An amount equal to the depth of the water
B.Two times the depth of water
C.Three to four times the depth of water
D.Five to seven times the depth of water