Your vessel is anchored in an open roadstead with three shots of chain out on the port anchor.The wind freshens considerably and the anchor begins to drag.Which action should you take FIRST（）.

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 . an anchor light B . sidelights and a stern light C . three lights in a vertical line，the highest and lowest being red，and the middle being white D . None of the above

A . Press up any slack double-bottom tanks to eliminate free surface B . Flood any empty double-bottom tanks to add weight low and down C . Jettison topside weights to reduce KG and KB D . Shift any off-center weights from port to starboard

A . Use the C0 system and evacuate the engine room B . Use the fire main system and evacuate the engine room C . Evacuate the engine room and use the C0 system D . Evacuate the engine room and use the fire main system

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 . Bow to the sea and no way on your vessel B . Sea on the lee quarter with ship moving ahead slowly C . Sea on the weather bow and ship moving ahead slowly D . Sea on the quarter with sternway on the shi

A . provide elasticity B . increase the strength C . reduce the cost D . reduce the weight

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 . sagging with tensile stress on main deck B . sagging with compressive stress on main deck C . hogging with tensile stress on main deck D . hogging with compressive stress on main deck

A . vessel not under command B . sailing vessel C . vessel being towed (manned) D . vessel being towed (unmanned)

A . displaying a large red flag B . displaying three black balls in a vertical line C . sounding four or more short rapid blasts on the whistle D . continuously sounding the fog whistle

A . stem the current and make very slow headway when the anchor is dropped B . stem the current and be falling aft very slowly when the anchor is dropped C . stem the current and endeavor to make neither headway nor sternway when the anchor is dropped D . stop all headway through the water and keep the current astern when the anchor is dropped

A . information of such condition from yourself B . notification of such condition from yourself and the Second Officer C . notification of such condition from yourself and any other member of the crew D . notification of such condition from yourself or the Second Officer

A . You must provide air transportation to the nearest port of entry in the United States B . You must provide passage to the port of original engagement C . There is no requirement for return to the United States provided the voyage has exceeded 4 weeks duration D . The crew can be employed on another United States vessel，but only if it is returning to the port of original engagement

A . Bow to the wind B . Beam to the wind C . Stern to the wind D . With the wind on the quarter

A . try to find out where the oil is coming from B . call the Master C . have the pump man check the discharge piping D . shutdown operatio

A . starboard bow，note the course，and head in that direction B . starboard quarter，note the course，and head in that direction C . port quarter，note the course，and head in that direction D . port bow，note the course，and head in that directio

A . Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lights B . Three lights in a vertical line，the highest and lowest red and the middle white，ONLY C . Anchor lights ONLY D . Anchor lights and sidelights ONLY

A . reduce the length of the cable B . pay out more anchor cable C . back the engines D . swing the rudder several times to work the anchor into the bottom

A . The ventilators will automatically close by the action of fusible links B . The motor takes its air supply from outside the lifeboat to prevent asphyxiation of the crew C . A water spray system to cool the outside of the boat is operated by a high-volume manual pump D . An air tank will provide about ten minutes of air for the survivors and the engine

A . stop your engines B . sound the danger signal at two-minute intervals C . hold course and speed until the other vessel is sighted D . take avoiding action as soon as possible

A . ventilate the quarters as much as possible B . prepare to abandon ship C . close all ventilation to the quarters if possible D . attempt to put the fire out yourself before sounding the alarm

A . Bow spring line B . Inshore head line C . Stern breast line D . Bow breast line