【正文】 bu based on certain of the following is not one of these conditions?D hull must bu clean must be calm weatherwind 10 knots or less and a calm sea must be no current depth of the water mest be at least one and one—half times the draft to determine the density of the slop after tank washing? use of an interferometer use of a hydrometer use of an interface use of a thermometer答案：B怎樣判斷洗艙后費油的密度？通過使用液體比重計 oil or mixture containing oil __B___ into Singapore waters from any vessel． not be discharged be discharged be filled not be filled is a CORRECT reply to a pilot’s request,“How’s your heading”? D to 10 rudder 50 ideal rope for stoppers should satisfy the following requirements except that stopper should be of synthetic fibre rope size of the stopper should be as large as possible stopper should be of low stretch material stopper should be very flexible答案：B阻擋器的理想的繩索需要滿足以下要求中除了阻擋器的尺寸盡可能大 best method to stop a vessel from dragging anchor in a sand bottom is to the length of the cable out more anchor cable the engines the rudder several times to work the anchor into the bottom is prohibited in this area． anchored vessel fitted with twin screws is easier in _A____ than a vessel with single screw． maneuver setting fixing speed your propeller is racing in rough weather，you should your engine speed it your engine your engine until the rough weather passes vessel is underway according to the Rules?___B__ vessel made fast to a single point mooring buoy purse seiner hauling her nets pilot vessel at anchor vessel which has run aground of the following are engaged in fishing EXCEPT vessel trawling vessel trolling vessel setting nets vessel tending lines． alteration of course and/or speed to avoid collision shall，if the circumstances of the case admit，______ to another vessel observing visually or by large enough to be readily apparent a succession of small alterations with due regard to the power and speed of the vessel sufficient room for the other vessel to take action KEY: A任何為避免碰撞的航向和/或航速的改變應(yīng)，如環(huán)境許可，大的足以容易明顯地被他船以視覺或雷達觀測到.（為避免碰撞而作的航向和（或）航速的任何變動，如當(dāng)時環(huán)境許可，應(yīng)大得足以便他船用視覺或雷達觀測時容易察覺到） short blasts of the whistle have all of the following meanings EXCEPT intend to meet you starboard to starboard． do not intend to hold course and speed． intend to overtake you on your port side． intend to alter my course to port．KEY: B your vessel is the standon vessel in a crossing situation must keep your course and speed may change course and speed as the other vessel must keep clear other vessel must keep her course and speed vessels must keep their course and speed should plot your dead reckoning position every fix or running fix every estimated position three minutes in pilotage waters in pilotage waters buoy having red and green horizontal bands would have a light characteristic of quick flashing group flashing (A) flashing KEY: B具有紅綠橫紋的浮筒將具有組合閃光的燈光特性。 region A, The green buoys are kept to_____and red to _____when sailing ,port,sea,land,port,land,sea ,starboard,land,land,starboard,sea,sea 答案：A在側(cè)面左手標(biāo)，當(dāng)從海上駛向岸時綠色浮標(biāo)保持在右舷，紅色在左舷 tides are tides that lows lower than normal and highs higher than normal lows higher than normal and highs lower than normal unpredictable in the spring of the yearKEY: A movement of water away from the shore or downstream is called a(n)______ current current current currentKEY: B vessel is listed when it is by the head by the stern due to offcenter weight due to windKEY: C height is a measure of stability only through all angles righting arm of the aboveKey :A mean draft of a ship is the draft __A_____ between the forwad and aft draft marks the center of flotation the loadline the center of buoyancy the draft at or below the load line mark will insure that the vessel has adequate buoyancy periodsKEY: B a floating ship, ture mean draft is always the _____ of the observed drafts at the center of flotation corresponding to the calculated displament of the calculated draftKey : B usually choose cargo—handling equipment according to _______? ship type port’s organization cargo’ nature docker’s abilityKey:C necessity of the segregation of cargoes is determined by from practice types of cargoes types of ships abilitiesKEY: B loading or discharging，the tallymen must make contact with__B___on duty so as to solve problems in time． A．ship ownerB．ship’s officersC．shippersD．consignors ’ll adopt the mechanical talling method or late or later or late or laterKey:D caigo _____in the holds adjacent to the angine never be stowed br stowed be stowed be stowedKey。A FORECAST MOVE 285 DEG 15 KNOT FIRST 12 HOURS THEN 280 DEG 17 KNOTS NEXT 12 movement of the Typhoon is in __C_ warnings are issued ______ when winds of force 12 or above are expected． all parts of the world some parts of the world all corners of the world every corner of the worldKEY: B is the rise and fall of the ocean39。s surface due to winds storms pull of the moonKEY: B (季風(fēng))characterized by ，variable winds with little or no humidity ，gusty winds that blow from the same general direction all year winds that reverse direction ，cyclonic winds that change direction to conform to the passage of an extreme low pressure systemKEY: C most cases，the direction of the apparent wind lies between the bow and direction of the true wind north beam on the windward side beam on the lee side KEY: A frames are located in the double bottoms tanks on tankers and after peaks double bottomsKEY: C collision bulkhead shall be of is the winter load waterline on the load waterline mark?__D___ line over the summer load waterline line above the tropical load waterline line below the tropical load waterline line between the summer and the winter North Atlantic load waterline relation to cargo gear，what does SWL mean? working load 39。s working l