A.foot
B.heel
C.step
D.sole
您可能感興趣的試卷
你可能感興趣的試題
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
The angle between the flukes and the shank of an anchor is called the（）.
The bottom of the mast rests on a part of the keel called the mast（）.
The smallest size of flaw that can be detected on a radiograph examination of a weld will be indicated by the（）.
Before welding in a tank that has carried petroleum products，the tank must be certified by （）.
Hatch No.1 must be cleaned up to meet the（）of the cargo surveyors．
Cracks may be prevented from developing at the corners of welded plating inserts by（）.
The document on a vessel，annually endorsed by an American Bureau of Shipping surveyor，is called the（）.
Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure? （）
Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from（）.
The boom stops are installed on an offshore crane to（）.