單項(xiàng)選擇題A stand-on vessel is（）.

A.required to give way in a crossing situation
B.required to sound the first passing signal in a meeting situation
C.free to maneuver in any crossing or meeting situation as it has the right-of-way
D.required to maintain course and speed in a crossing situation but may take action to avoid collision


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1.單項(xiàng)選擇題A stage should only be rigged（）.

A.over the bow or stern of a vessel
B.over the flat sides of a vessel
C.over the open water
D.over the dockside

2.單項(xiàng)選擇題A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.

A.replaced in its proper location if weight loss is no more than 15%
B.replaced in its proper location if weight loss is no more than 25%
C.labeled empty and recharged as soon as possible
D.labeled empty and replaced in its proper location regardless of weight

3.單項(xiàng)選擇題A special daymark is a（）.

A.red-and-white octagon
B.daymark with a yellow stripe on it
C.green square
D.yellow diamond

4.單項(xiàng)選擇題A spanner is a （）.

A.cross connection line between two main fire lines
B.special wrench for the couplings in a fire hose line
C.tackle rigged to support a fire hose
D.None of the above

5.單項(xiàng)選擇題A slow，gradual fall of the barometer indicates approaching（）.

A.gale force winds within 12 hours
B.blizzard conditions
C.deteriorating or unsettled weather
D.heavy，wind driven rain