航海英语特种货物运输及有关规则单项选择题每日一练(2018.12.21)

单项选择题
In preparing a cargo space for receipt of a shipment of bagged cargo，which instruction for laying dunnage should be followed? （）
A.Use either 1 or 2 tiers of dunnage，spacing the pieces in each tier a foot apart，and lay pieces in the bottom tier diagonally to the ship's side
B.Use 1 tier of dunnage，laying the pieces tightly together to form a solid floor over the steel deck
C.Use 2 tiers of dunnage，spacing the pieces in the bottom tier about a foot apart and the pieces in the top tier 6 inches apart
D.Use 2 tiers of dunnage，spacing the pieces in the bottom tier about a foot apart and the pieces in the top tier together
单项选择题
Large quantities of uncovered pig iron or billets should not be carried in the upper-tween decks because（）.
A.this does not eliminate the risk of cargo shifting
B.this will increase the metacentric height of the ship
C.this will decrease the gravity height of the ship
D.this will reduce the rolling period of the ship
单项选择题
A loaded hopper barge with independent tanks has a placard，with alternating red and white quadrants，on each side and end. Which statement concerning this barge is TRUE?（）
A.The cargo will spontaneously ignite if released to the atmosphere
B.You must operate this barge as a lead barge
C.The barge should be spotted as far away from the towboat as possible
D.The barge must be in a protected position within the tow
单项选择题
A tow astern is veering from side to side on its towline. The best way of controlling the action is to（）.
A.trim the tow by the bow
B.trim the tow by the stern
C.list the tow to windward
D.adjust the length of the towing bridle
单项选择题
A vessel has an amidships superstructure. Which location would be most suitable for on-deck stowage of automobiles?（）.
A.On top of No.1 hatch
B.Beside the hatches，forward of the midships house
C.On top of the hatch immediately forward of the midships house
D.On top of the hatch immediately aft of the midships house