更多"在GMDSS中,主要有()紧急示位标。"的相关试题:
[多项选择]符合GMDSS要求的示位标有()
A. 406MHz EPIRB
B. 243MHz EPIRB
C. 1.6GHz EPIRB
D. CH70 EPIRB
E. 121.5MHz EPIRB
[单项选择]“406MHZ”卫星紧急无线电示位标被放置海水中后,不打开示位标顶端开关()。
A. 会自动发射
B. 不会自动发射
C. 要在水中打开开关才会发射
[单项选择]在紧急情况下,可()启动示位标发出报警信号。
A. 自动
B. 人工
C. 自动或人工
[单项选择]当艇筏上人员,将难船上漂浮的卫星无线示位标从水中捞起时,示位标将()。
A. 继续发射
B. 停止发射
C. 需手动发射
[简答题]无线电应急示位标(EPIRB)的主要作用是什么?
[单项选择]至少应间隔多长时间试验一次卫星应急无线电示位标()
A. 一个月
B. 二个月
C. 三个月
D. 半年
[判断题]应急无线电示位标可以提供遇难艇、筏的方位,以便得到救援。
[单项选择]卫星应急无线电示位标(EPLRB)在救生艇筏中最好应该如何使用()。
A. 将示位标放在救生艇筏内由专人负责,示位标会自动发射遇险报警信号
B. 将示位标系结在救生艇筏上,解开启动拉索,抛入水中漂浮并发射遇险信号
C. 将示位标放在救生艇筏内由专人负责,天线保持垂直示位标自动发射
[单项选择]GMDSS实施后,岸台使用NAVTEX为船舶发送气象警告、航行警告和其它紧急信息的专用频率为()
A. 518KHZ
B. 409KHZ
C. 1209.5KHZ
D. A和C
[单项选择]卫星无线电示位标,当将开关反向“TEST”时,用于日常检测指示灯显示正常时()。
A. 红色连闪灯
B. 绿色灯频闪
C. 银色频闪灯与绿色灯交替点亮
[单项选择]根据《国内航行海船法定检验技术规则》(2004),卫星应急无线电示位标应在何处进行年度测试。()
A. 船上;
B. 认可的试验站;
C. 船上或认可的试验站;
D. 制造厂。
[单项选择]防汛救生设备:主要有救生衣、救生圈、橡皮船、冲锋舟、救生艇等,主要用于紧急转移洪水淹没区()。
A. 设备
B. 房屋
C. 群众
D. 财产
[单项选择]Proper GMDSS watchkeeping includes().
A. monitoring all required frequencies in the proper mode
B. reading all displays and/or printouts after silencing an alarm
C. notifying the Master of any distress alerts
D. All of the above
[单项选择]Which statement concerning GMDSS Radio Operator requirements is FALSE().
A. Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea
B. Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well
C. Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications
D. While at sea,adjustments to,and the maintaining of,GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer
[单项选择]What publications should a GMDSS Operator consult regarding the proper set-up and operation of vessel equipment().
A. ITU Publications
B. The manufacturers instruction manuals
C. Part 90 of the FCC Rules and Regulations
D. Code of Federal Regulations,Title 47,Part 80,Subpart W
[多项选择]GMDSS的组成部分有()
A. 卫星通信系统
B. 地面通信系统
C. 定位系统
D. 寻位系统
E. MSI播发与接收系统
F. 导航系统