單項選擇題

A “l(fā)iner” in riveted construction of a vessel is a(n)（）.

A.small plate which fills the aperture between riveted strakes and the vessel framing
B.backing plate which is used to level the strakes while riveting，and then removed
C.internal frame to which the side shell is riveted
D.seam that is welded after riveting is completed

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單項選擇題

A “full service” Loran-C receiver will provide（）.

A.matching pulse rates of at least 20 stations
B.an automatic on-and-off switch
C.a horizontal matching of all delayed hyperbolic signals
D.automatic signal acquisition and cycle matching

單項選擇題

A “figure eight” knot is used to（）.

A.be a stopper
B.shorten a line
C.join lines of equal size
D.keep a line from passing through a sheave

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A “l(fā)iner” in riveted construction of a vessel is a(n)（）.

你可能感興趣的試題

A “full service” Loran-C receiver will provide（）.

A “figure eight” knot is used to（）.

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