A.Oil Rig chain and Oil Field Stud Link chain
B.Flash-butt welded chain and Di-Lok chain
C.Flash-butt welded chain and Oil Rig chain
D.Oil Field Stud Link chain and Flash-butt welded chain
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A.Self-loading
B.Self-trimming
C.Self-unloading
D.Self-discharging
A.number of strands
B.number of wires in each strand
C.circumference
D.diameter
A.and preventer have equal stress
B.stronger than the preventer to minimize the danger of separation
C.take a lighter load than the preventer as a safety factor
D.take the stress in case the preventer parts
A.is stated on the vessel's Certificate of Inspection
B.is the number authorized in the Navigation Rules
C.depends on the number of lifejackets you carry
D.is the number authorized by your license
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
最新試題
Temporary Certificates of Inspection are effective until the（）.
The size of wire rope is determined by the（）.
In the manufacture of wire rope，if the wires are shaped to conform to the curvature of the finished rope before they are laid up，the rope is called（）.
What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core（）.
You are preparing to slush a stay on your vessel by lowering yourself down the stay in a bosun’s chair.The proper way to do this is to ride down the stay on a riding shackle（）.
When two lines are spliced together,（）.
What does the term end-for-end refer to in regard to a wire towing hawser（）.
SOLAS is the abbreviation of（）.
Which of the following statements concerning the rigging of bosuns’ chairs and their use is TRUE（）.
Which statement about stowing spare hose is TRUE（）.