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單項(xiàng)選擇題

A solution to overcome tripping defects is an arrangement of special plates on either side of the flukes, designed to set them in the correct tripping position. These special plates are called（）.

A.trippers
B.stocks
C.awl
D.palms

單項(xiàng)選擇題

A spark arrestor（）.

A.keeps sparks from falling into an open tank
B.secures covers on ullage openings
C.prevents sparks from getting out of an enging's exhaust system
D.grounds static electicity

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A smooth, tapered pin, usually of wood, used to open up the strands of a rope for splicing is called a (n)（）.

你可能感興趣的試題

A solution to overcome tripping defects is an arrangement of special plates on either side of the flukes, designed to set them in the correct tripping position. These special plates are called（）.

A spark arrestor（）.