單項(xiàng)選擇題The ladder shall（）.

A.be secured in a position so that it rests firmly against the ship's side from which the discharge operations are carried out
B.have at least two replacement steps which are secured in position by a method different from that used in the original construction
C.have battens made of hardwood，or other material of equivalent properties，in one piece and not less than 1.80metres long provided at such intervals as will prevent the pilot ladder from twisting
D.have steps made of softwood，or other material of equivalent properties，made in one piece free of knots，having an efficient slip surface


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2.單項(xiàng)選擇題The best method of protecting that portion of a fiber anchor line nearest the anchor from chafing on the bottom is by（）.

A.Using a small scope ratio
B.Replacing that portion with a short length of chain
C.Using a hockle to keep that portion of the anchor line off the bottom
D.Using a synthetic line

3.單項(xiàng)選擇題Temporary Certificates of Inspection are effective until the（）.

A.SOLAS Certificate is issued
B.Loadline Certificate is renewed
C.Classification society approval is issued
D.Permanent Certificate of Inspection is issued

4.單項(xiàng)選擇題SOLAS is the abbreviation of（）.

A.International Maritime Dangerous Goods Carried by Sea
B.International Code for the Construction and Equipment of Ships Carrying Gases in Bulk
C.International Convention for the Safety of Life at Sea
D.International Regulations for Preventing Collisions at Sea

5.單項(xiàng)選擇題Serving is（）.

A.Marline or ratline wound along the grooves of a rope
B.Narrow strips of light canvas or cotton cloth spiral-wrapped along the rope
C.Marline tightly wound on the rope by means of a board or mallet
D.A splice made by laying the strand of one rope into the vacated grooves of another rope