單項(xiàng)選擇題

A common class of wire rope is the 6X37 class. What does the 37 represent?（）

A.Number of wires in the inner core
B.Number of strands per wire rope
C.Tensile strength of the wire
D.Number of wires per strand

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單項(xiàng)選擇題

A Chinese stopper (two lines) will hold best when you（）.

A.fasten the bitter ends to the mooring line with half hitches
B.twist the ends together and hold them in the direction of the pull
C.twist the ends together and hold them in the direction opposite to the pull
D.twist the ends together and hold them at right angles to the mooring line

單項(xiàng)選擇題

A cargo hose is marked with the（）.

A.maximum working pressure
B.bursting pressure
C.safety relief valve setting
D.maximum temperature

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A common class of wire rope is the 6X37 class. What does the 37 represent?（）

你可能感興趣的試題

A Chinese stopper (two lines) will hold best when you（）.

A cargo hose is marked with the（）.

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精