Dredging anchor

A . An amount equal to the depth of the water B . Two times the depth of water C . Three to four times the depth of water D . Five to seven times the depth of water

A . charted depth of water only B . depth of water，including tidal differences C . time and date of anchoring D . type of anchor being used

A . anchor using both anchors B . anchor with scope of 8 or more to 1 C . use a stern anchor D . fit a crown strap and work wire to the anchor

A . A vessel engaged in underwater operations B . A vessel engaged in mine clearance C . A vessel engaged on pilotage duty D . A vessel engaged in survey operatio

A . chain-wire B . chain-manila C . chain-nylon D . all chai

A . The vessel will not reverse direction in a tidal current B . The radius of the vessel's swing will be shortened C . A mooring approach may be made from any direction D . The vessel will not swing with a change in wind

A . a heavy anchor with an extra long line used to anchor in deep water B . a cone shaped bag used to slow down the wind drift effect C . a padeye to which the sea painter is made fast D . made of wood if it is an approved type

A . Chain stopper B . Devil's claw C . Hawse ratchet D . Riding pawl

A . weight of cable to weight of vessel B . weight of cable to weight of anchor C . length of anchor to depth of water D . length of cable to depth of water

A . 设定组件内字体的对齐方向 B . 设定当组件小于单元格时，应该怎么样放置单元格 C . 设定组件的对齐方向 D . 设定组件在表格中的位置

A . Anchor is cross the bow B . Anchor is in the ground C . Anchor is foul D . Anchor is dragging

A . 正确 B . 错误

A . A power-driven vessel B . A vessel engaged on pilotage duty C . A vessel dredging D . A vessel restricted in her ability to maneuver

A . The bow type shackle provides a superior connection B . The D-type shackle is weaker than the bow type C . The bow type shackle is weaker than the D-type D . The D-type shackle provides an inferior connectio

A . 正确 B . 错误

A . To moor B . to berth C . to anchor D . to ride at anchor

A、Cranes B、Winches C、Capstans D、Windlass

A . White buoy with a green top B . White and international orange buoy C . Yellow buoy D . Yellow and black vertically-striped buoy

A . Drop the starboard anchor short with about one shot of chain B . Sheer out to starboard using the rudder，then drop the starboard anchor with about four shots of chain C . Put the engines slow ahead to help the anchor D . Veer out more chain on the port anchor

A、decreases B、increases C、 remains the same D、has no relation to the scope

A . prevent fouling of the anchor B . decrease swing of the vessel C . prevent dragging of the anchor D . reduce strain on the windla

A . 0 degrees B . 10 degrees C . 20 degrees D . 30 degree

A . displacement tonnage B . weight forces C . buoyancy forces D . environmental force

A.否 B.是