單項(xiàng)選擇題To launch a liferaft by hand you should().

A.cut the casing bands,throw the liferaft over the side,and it will then inflate
B.detach the operating cord,throw the raft over the side,and it will then inflate
C.cut the casing bands,throw the raft over the side,and pull the operating cord
D.throw the liferaft over the side and pull the operating cord


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1.單項(xiàng)選擇題To inflate a davit launched liferaft you().

A.initially connect the compressed air nozzle to the inflation tube
B.pull the inflation lanyard
C.connect the hand pump to the inflation tube and pump it up
D.connect the helium nozzle to the inflation tube

2.單項(xiàng)選擇題The worst atmospheric condition for dispersion of H2S is().

A.heavy rain
B.gusty winds with rain
C.nearly calm,clear nights or early morning
D.full sun with high winds

4.單項(xiàng)選擇題The operating cord on an inflatable liferaft also serves as a().

A.lifeline
B.painter
C.drogue
D.marker

5.單項(xiàng)選擇題The most important thing to remember when launching an inflatable liferaft by hand is to().

A.open the CO2 inflation valve
B.open the raft container
C.ensure that the operating cord is secured to the vessel
D.inflate the raft on the vessel,then lower it over the side