A.yearly inspection
B.quarterly inspection
C.monthly inspection
D.weekly inspection
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A.keep a line from fraying
B.join lines of unequal size
C.stop off a line
D.shorten a line
A.positive correction
B.dip error
C.negative correction
D.semidiameter error
A.Restricted area
B.Closed area
C.Prohibited place
D.Forbidden place
A.beats
B.beasts
C.bacons
D.battens
最新試題
On a ship，a door that is required to be marked KEEP CLOSED is designed to（）.
An example of a modern anchor which has a stock is a(n)（）.
As oil pipe line connections were broken，（）quantity of oil was caused to spill onto the wharf and into the dock water.
Permission is kindly requested（）the ballast water.
The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.
The portable radio apparatus means（）.
In nautical terminology a dog is a（）.
In ship construction，keel scantlings should be the greatest（）.
In ship construction，frame spacing is（）.
Centrifugal pumps have what advantage(s) over reciprocating pumps?（）.