单项选择题
Which of the following statement(s) is/are TRUE regarding lashing requirements to secure vehicles aboard Ro-Ro vessels? （）
A.It is imperative that the securing of cargo on flats and trailers and in containers be adequate for both road and sea motions
B.The movements experienced by road borne cargo differ significantly from the roll and sway movements of a ship at sea
C.It is necessary for adequate number and strength of securing points on the vehicles themselves in order that lashings may be properly and safely utilized.
D.All the above
相关考题
-
单项选择题
Which of the following is/are TRUE regarding lashing requirements to secure vehicles aboard Ro-Ro vessels? （）
A.The securing of cargo on flats and trailers and in containers must be adequate to withstand both road and sea motions
B.The generally recommended lash angle cannot be greater than 45 degrees relative to the deck inany direction
C.It is necessary for an adequate number of securing points on the vehicles themselves in order that lashings may be properly and safely utilized
D.All the above -
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 -
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
