单项选择题
Which of the following is the stated proper sequence before commencing cargo operations aboard Ro-Ro vessels?（）
A.Start ventilation，lower the ramp，notify engine room
B.Lower the ramp，start ventilation，notify engine room
C.Notify engine room，lower the ramp，start ventilation
D.Start ventilation，notify engine room，lower the ramp
相关考题
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单项选择题
Which of the following is suitable for bagged cargo?（）.
A.hydraulically operated pusher
B.spread beam sling
C.revolving roll clamping device
D.platform sling -
单项选择题
Which of the following element(s) should be taken into account in the preparation of the “Cargo Securing Manual”? （）
A.Duration of the voyage
B.Types of cargo units and vehicles to be carried
C.Weight of cargo units and vehicles
D.All of the above -
单项选择题
Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel? （）
A.Lower the stern ramp，raise/open the stern door，turn on ventilation for cargo holds
B.Turn on ventilation for cargo holds，raise/open the stern door，lower the stern ramp
C.Turn on ventilation for cargo holds，lower the stern ramp，raise/open the stern door
D.Raise/open the stern door，lower the stern ramp，turn on ventilation for cargo holds
