单选题DSC呼叫序列中自识别表示()。A呼叫对象的识别B呼叫者的识别码C自检D自己检测对方信号的质量
单选题
DSC呼叫序列中自识别表示()。
A
呼叫对象的识别
B
呼叫者的识别码
C
自检
D
自己检测对方信号的质量
参考解析
解析:
暂无解析
相关考题:
单选题STCW规则以表格形式对三个责任级别从()方面规定了船员最低适任标准。 a.适任; b.知识、理解和熟悉; c.表明适任的方法; d.评价适任的标准Aa+b+cBa+bCa~dDc+d
单选题“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()Asubstandard shipBstandard shipCover-standard shipDreference ship
单选题Anticyclones are usually characterized by().Adry,fair weatherBhigh winds and cloudinessCgustiness and continuous precipitationDovercast skies
单选题A crankshaft whose center of gravity coincides with its center line is said to be ().Adynamically balancedBstatically balancedCcounter balancedDresonantly balanced
单选题If the metacentric height is small,a floating vessel will().Abe tenderBhave a quick and rapid motionCbe stiffDyaw
单选题A carbon dioxide fire extinguisher has been partially discharged, and should be immediately ().Atagged and restowed properly in its rackBweighed and the charge loss recordedCgiven to the chief engineer for rechargingDtagged empty and stowed separately from charged extinguishers
单选题根据MARPOL公约附则Ⅳ,船舶在按照规定排放生活污水时,不得将集污舱中储存的生活污水顷刻排光,而应于船舶以()在途中航行时,以中等速率进行排放。A不少于4节的航速B不少于6节的航速C不少于8节的航速D不少于海上速度一半的航速
单选题To determine the number of portable fire extinguishers required on an inspected vessel,you should check the().Ahot work permitBCertificate of InspectionCSafety of Life at Sea CertificateDstation bill
单选题根据船规规定,经修理的无人机舱的船舶在航行试验时,主机应进行控制试验,其做法是在驾驶台和机舱集控室对主机在()进行控制站的转换试验。A停车时B所有运转工况范围内C正车和倒车起动位置上D正车运转时
单选题在遇险呼叫中,被叫CES不应答时,()则给予应答并处理遇险业务。ANCSBITUCMESDMCC