單項選擇題If the bedplate was too rigid, then as the hull flexed, the (), which secure the engine into the ship would be likely to break, and there would be a danger of the bedplate cracking.

A.through bolts
B.jack bolts
C.holding down bolts
D.tap bolts


您可能感興趣的試卷

你可能感興趣的試題

2.單項選擇題The fire drill must, as far as practicable, be conducted if ().

A.there is a minor emergency
B.there is an actual emergency
C.there were a minor emergency
D.there were an actual emergency

3.單項選擇題(), the second one will start automatically.

A.If the first stand-by set failed
B.If the first stand-by set fails
C.If the first stand-by set will fail
D.If the first stand-by set doesn’t fail