航海英语附加题 1_20 targets can be tracked at one timeWhen maximum tracking capacity is reached，no further acquisitions(捕获) are possible A As many as B So many as CAs much as D As more as 2_amplify charted detail and contain information needed for safe navigation A Admiralty Sailing Directions B Admiralty List of Lights CAdmiralty List of Signals D Admiralty Notices to Mariners 3_are published for the correction of Admiralty Charts A Admiralty Sailing Directions B Admiralty List of Signals CMariners Handbook DAdmiralty Notices to Mariners 4_cargoes chargeable at the same rate，part of one ton shall be taken as one ton A At BFor COn DAbout 5_chart 3994，positions read from this chart should be shifted 0 03 minutes Northward A To consideer BTo check CTo examine DTo agree with 6_chart 3994，positions read from this chart should be shifted 0 03 minutes Northward A To consider BTo check CTo examine DTo agree with 7_day，pilot flag should be displayed from main mast A From BBy COn DWith 8_get your engine ready before six tomorrow morning A Youd better BYou would better CYou at least D You at most 9_is a device used to measure atmospheric pressure A Barometer BThermometer CChronometer DSpeedometer 10_is a rounded projection at the forward end of a ship which reduces water resistance，thus allowing an increase in speed when the ships is in ballast A Bulbous bow BEllipse bow CCyclical projection DGnomonic projection 11_is an angle at which a cargo settles in the hold of a ship，between the horizontal and the slope made by a bulk cargo such as grain or iron ore A Angle of loll B Angle of inclination CAngle of repose D Angle of list 12_is not a process of weathering of the oil spilled in the sea water A Evaporation BDispersion CEmulsification DDrifting 13_is one of four uprights comprising a cell in a containership into which a container fits exactlyThese uprights hold the container in position A stanchion Bshore Ccellular double-bottom DCeil guide 14_is the number of millimeters by which the mean draft changes when a ship passes from salt water to fresh water，or vice versa，whilst floating at the loaded draft A TPC BThe Fresh Water Allowance CParallel sinking of the ship DUKC 15_is the process by which the position of the vessel at any moment is found by applying the last well-determined position to the run that has been made since，using for this purpose the ships course and the distance being those indicated by log A Dead reckoning BDead weight CDead slow ahead DDead slow astern 16_is the speed of a vessel allowing time for effective action to be taken under prevailing circumstances and conditions to avoid a collision and to be stopped within an appropriate distance A Safe speed BEconomic speed CProper speed DNavigation speed 17_is used for heaving up and slacking away the anchor and chain A A mooring winch B A windlass CA deck crane D A lifeboat engine 18_means the curve on the earths surface which cuts all the meridians at the same angle A Great Circle BPosition Line CRhumb line DTrue Bearing 19_of a radar is governed by the horizontal beam width of the scanner which depends to a great extent on its physical size A Range discrimination BBearing discrimination CEcho discrimination DTarget discrimination 20_of the following conditions will cause a vessels bottom to be subjected to tension stresses A Concentration of weight aft BConcentration of weight forward CConcentration of weight amidships DConcentration of weight at both ends of the vessel 21_of the following need NOT be entered in the Official Logbook ？ A The testing of the internal combustion engine driven emergency generators at least once each month the vessel is navigated BThe testing of storage batteries for emergency lighting and power systems once each 6 months the vessel is navigated CThe actual draft when the vessel arrives in salt water after departing a port DThe testing of the line-throwing appliance once every 3 months 22_port anchor，one shackle in water A Throw BHeave in CCut off