A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral “4”when the vessel（）.

A . remains fully obliged B . has no obligation C . is not necessarily D . is exempted

A . A vessel transferring provisions while underway B . A pushing vessel and a vessel being pushed when connected in a composite unit C . A vessel servicing a navigation mark D . A vessel launching aircraft

A . Loadline mark B . Certificate of Inspection C . Station Bill D . Tonnage mark

A . evenly distributed vertically and the double bottoms are full B . concentrated low and the double bottoms are empty C . concentrated low and the double bottoms are full D . concentrated high and the double bottoms are empty

A . link bandwidth B . hop count C . link cost D . administrative distance E . link delay

A . If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets. B . If the blue ends of the magnets are aft you should lower the fore-and-aft tray C . If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets D . If the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnet

A . when B . which C . that D . the

A . displaying code letter Y (Yankee) B . sounding five short blasts on his whistle C . displaying code numeral 5 D . sounding one prolonged blast on his whistle

A . admeasure over 100 GT B . be 79 or more feet in length C . engage in intercoastal or international trade D . be issued a Certificate of Inspectio

A . Way point B . Receiving point C . Reporting point D . Closest Point

A . a vessel restricted in her ability to maneuver B . a vessel not under command C . a vessel engaged in fishing D . a vessel constrained by her draught

A . Maintain balance and move with agility B . Climb up and down vertical ladders and stairways C . Open and close watertight doors D . Take part in vessel evacuation procedure

A . The propeller hub taper and shaft keyway should be inspected for cracks or corrosion B . The stern bearing alignment with the stern frame should be checked C . The interior of the stern tube should be inspected for leaks D . The shaft liner should be removed and inspected

A . Vessels nearer the distress vessel acknowledge receipt B . Vessels nearer the distress vessel fail to acknowledge receipt C . Even you have not reveived the distress D . Even the vessel in distress expressly prohibit you from providing any salvage service

A . Vessel heels until water enters a hatch B . Vessel in collision floods through a damaged area above the waterline C . Vessel takes on water due to the hatches being left open in heavy rain D . Vessel takes on water by the propeller shaft due to failure of the stern gland

A . Glass B . Crockery C . Metal D . Dunnage

A . Recovering an individual from the water B . Steering casualty C . Emergency towing D . Loss of propulsion power

A . divisional parts B . coefficients C . fractional parts D . equatio

A . conduction B . convection C . radiation D . windage

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

A.A vessel shall proceed near the other vessel on her starboard side on the narrow channel since it is safe and practicable B.A vessel shall avoid proceeding near the starboard outer limit of a narrow channel as long as it is safe and practicable C.A vessel shall avoid proceeding along the channel because it is not safe and practicable D.A vessel shall proceed near the starboard outer limit of a narrow channel to the degree in which it is safe and practicable

A.Way point B.Receiving point C.Reporting point D.Closest point