A mooring line leading at nearly right

1、A mooring line is described as being 6

A mooring line is described as being 6x24，1-3/4 inch wire rope. What do the above numbersrefer to?（）AStrands，yarns，circumferenceBStrands，wires，diameterCWires，yarns，diameterDStrands，circumference，wire

2、A mooring line that checks forward mot

A mooring line that checks forward motion of a vessel at a pier is a（）.Abow lineBforward bow lineCstern lineDstern breast line

3、A spring line leads（）.

A spring line leads（）.Afore and aft from the ship's sideBto the dock at a right angle to the vesselCthrough the bull nose or chock at the bowDthrough the chock at the ster

4、When checking a mooring line，you shoul

When checking a mooring line，you should（）.Aensure the bight is not fouled between the ship and the dock by taking up slackBpay out slack sm...

5、If a line at right angles to the axis

If a line at right angles to the axis rotates about that axis and, at the same time, moves parallel to the axis, it will generate （）.Aa helixBa helicoidalCa curveDa cone

6、引入线 lead line

引入线 lead line