A.blind flange
B.pivot coupling
C.quick-release coupling
D.spectacle flange
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A.yearly inspection
B.quarterly inspection
C.monthly inspection
D.weekly inspection
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
As oil pipe line connections were broken，（）quantity of oil was caused to spill onto the wharf and into the dock water.
Limit switches are used on which davits?（）
In ship construction，keel scantlings should be the greatest（）.
In relation to cargo gear，what does SWL mean?（）.
As the propeller turns，voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency，pitting of the blades，and vibration. These voids are known as（）.
The function of the bypass valve on the self-contained breathing apparatus is to（）.
Each cylinder in a two stroke cycle engine experiences combustion（）.
The boat is stowed on the davit rather than on a cradle with which type of davit?（）
The purpose of a bilge well is to（）.
In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.