A.foot
B.heel
C.step
D.sole
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A.prevent the boom from being raised too high
B.prevent the boom from swinging
C.support the boom when not in use
D.prevent the boom from being lowered
A.the three month period immediately following the certificate's anniversary date
B.the three month period immediately preceding the certificate's anniversary date
C.three months either way of the certificate's anniversary date
D.the three month period centered on the certificate's anniversary date
A.holding angle
B.fleet angle
C.fluke angle
D.shank angle
A.burial angle
B.penetration angle
C.fluke angle
D.holding angle
A.bower anchors
B.kedge anchors
C.spare anchors
D.stream anchors
最新試題
Cracks may be prevented from developing at the corners of welded plating inserts by（）.
Chain slings are suitable for heavy slender articles，such as（）.
The angle at which the anchor flukes penetrate the soil is the（）.
The burden of proving unseaworthiness is upon those who（）it.
The boom stops are installed on an offshore crane to（）.
Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.
The conclusion is（）the said ship is fit to continue to sail.
Before welding in a tank that has carried petroleum products，the tank must be certified by （）.
The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.
In which case is the IOPP Certificate of an inspected vessel NOT invalidated?（）