[单选题]In general, there are two parts in an SES. One of these is antenna equipment, also referred to as ____
[单选题]你船（机动船）在开阔水域航行中看到右前方甲船的尾灯，距离逐渐减小，方位逐渐变大，通过ARPA观其DCPA基本达到安全值，此时又发现正前方另一来船乙显示两盏舷灯和两盏桅灯并构成碰撞危险，则下列说法不正确的是：Ⅰ、 你船应保向保速 Ⅱ、 你船应向右转向 Ⅲ、 你船应向右转向从甲船右舷追越 Ⅳ、 你船应向左转
[单选题]The distress alert may also contain information regarding the_______, the type of assistance required, the course and speed of the ship and the time at which the information was recorded
[单选题]The GMDSS defines____sea areas based on the location and capability of shore based communication facilities.
[单选题]In the COSPAS-SARSAT system distress signals are proceeded by ____and the resulting data are forward to ____ through ____ communication network.
[单选题]Radio wave---flow over the surface of the earth ---they radiate from the antenna in other directions
[单选题]Every ship, while at sea ,shall maintain continuous watch on ----if the ship ,in accordance with the requirements of regulation 7.3.2 of SOLAS ,is fitted with VHF radio installation
[单选题]distress alert will normally be initiated ------and all distress alerts will be acknowledge ----
[问答题]The frequencies 2187.5khz,4207.5khz,6312.0khz ,8414.5khz,12577.0khz, 16804.5khz,and 156.525mhz may be used for DSC by coast and ship stations on a simplex basis for distress and safety purposes.The provisions and procedures for distress and safety calling are contained in CCIR Recommendation 541 as modified by.80,103(c)of this part.Coast and ship stations may also use DSC techniques for general calling purposes on their assigned working frequencies in 2,000-27,500khz bands and on those frequencies in the 156-162MHZ band which are allocated for maritime control,commercial,non-commercial and public correspondence communications.
[单选题]When you have received “GA+” from the CES for the INMATSAT-A telex communication ,you should immediately select--------you required
[单选题]Like a distress alert ,a distress priority message is routed automatically through a_____CES to a RCC.
[单选题]When receiving a distress alert, the SAR authorities ashore and the ships in the vicinity of the ship in distress will ____ soonest ..
[单选题]In technical code ( B1 B2 B3 B4), the _______is a single unique letter which is allocated to each message transmitter.
[单选题]Each ship station has its own unique _______MMSI which is included automatically in each DSC call.
[单选题]建立船舶定线制的目的包括： Ⅰ、分隔相反的交通流,以减少对遇局面的发生Ⅱ、 汇聚相同的交通流,以减少追越局面的发生 Ⅲ、减少穿越船与航行在已经建立的通航分道内的船舶的碰撞危险Ⅳ、 简化船舶汇聚区域内交通流的形式
[单选题]In the case of a ship in distress , the need exists to create a temporary area to facilitate locating potential _____ships.