海船船员考试 题目列表
单选题In areas covered by Inmarsat HF can be used as an（）to satellite communications.AalternationBalternateCalterDalternative
单选题下列有关交叉相遇局面条款说法哪个正确？（）A互见中，除帆船外的任何船舶航向交叉相互驶近构成碰撞危险，适用交叉相遇局面条款B互见中两艘限于吃水的船舶航向交叉相互驶近构成碰撞危险，适用交叉相遇局面条款C三艘机动船同时航向交叉相互驶近构成碰撞危险，适用交叉相遇局面条款D互见中三艘机动船同时航向交叉相互驶近构成碰撞危险，其中任两船之间适用交叉局面条款
单选题When air becomes trapped in the hydraulic fluid of a steering system, the （）.Arudder will respond sluggishlyBhydraulic rams will over-speedCsight glass will show bubblesDram relief valves will lift
单选题The most suitable pump for oily water separator feed duties is （）.Aa reciprocating pumpBa vane pumpCa centrifugal pumpDa triple screw pump
单选题What is commonly used to create turbulence in a diesel engine combustion system?（）AShape of the piston crownsBIncreasing the compression ratiosCIncreasing the piston crownsDIncreasing the turbocharger gear ratio
单选题气旋的水平范围（horizonta lcoverage）以地面天气图上（）平均为1000km，大的达2000～3000km，小的只有300～500km。A用中心最低气压表示B用气旋最里面闭合等压线围成区域直径表示C用气旋最外面闭合等压线围成区域表示D用气旋最外面闭合等压线围成的近似圆形区域直径表示
单选题If the compensating needle valve of a hydraulic governor is opened more than necessary the governor will （）Ahave a larger than normal dead bandBproduce excessive speed response to a load changeCrespond slowly to any change in engine loadDstabilize engine speed at the new governor setting
单选题当电压、电流的参考方向选得一致时，电阻上的电压和电流关系可用（）表示。AI=U/RBI=RUCR=IUDI=－U/R