更多"（）communication are intership VHF r"的相关试题:
[单项选择]（）communication are intership VHF radio telephone communication.
A. ship-to-shore
B. shore-to-ship
C. bridge-to-bridge
[单项选择]Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.
A. depend on
B. depending on
C. dependent on
D. depended on
[单项选择]VHF radio is one of the very important navigational instruments on board,（）messages can be sent.
A. by which
B. through which
C. by that
D. through that
[单项选择]VHF Radio is one of the very important navigational instruments on board，（）messages can be sent.
A. by which
B. through which
C. by that
D. through that
[单项选择]The height of a VHF radio antenna is more important than the power output wattage of the radio because（）.
A. VHF communications are basically line of sight
B. the air is more dense the higher you go
C. salt water is a poor conductor of sound
D. sea water absorbs the radiated energy
[单项选择]All coast radio stations（）DSC installed for VHF and HF.
A. have
B. had
C. are having
D. have had
[单项选择]Radio communication（）for many years and helps to save tens of thousands of lives.
A. has been used
B. have been used
C. has used
D. have used
[单项选择]对于通过E&M接口方式实现的VHF遥控，在VHF端，VHF设备的PTT信号与传输设备四线E&M接口的哪根线相连（）。
A. E线
B. M线
C. 音频线
D. 接地线
[单项选择]假设机长的所有无线电VHF工作正常，副驾驶的VHF—1也工作正常，但是当你VHF—2发射信号的时候却听不到声音，那么，你判断是哪个系统LRU出现故障（）
A. 机长控制面板
B. 2#无线电控制面板
C. 遥控电子组件
D. VHF—2收发机
[单项选择]对于通过E&M接口方式实现的VHF遥控，在VHF端，VHF设备的SQ信号与传输设备四线E&M接口的哪根线相连（）。
A. E线
B. M线
C. 音频线
D. 接地线
[单项选择]当ACP上的VHF1和VHF3的”CALL”灯同时点亮时，可能是：（）。
A. 接收到一个SELCAL呼叫
B. 接收到一个ACARS呼叫
C. 接收到一个SELCAL呼叫或一个ACARS呼叫
D. ACP上的VHF1和VHF3的”CALL”灯不可能同时点亮
[单项选择]VHF属于：（）
A. 通讯
B. 导航
C. 自动飞行
D. 仪表
[单项选择]如何提取VHF的故障代码？
A. 在CDU的DATA页面中进入MDC页面
B. 在MFD上按下FORMAT键，然后进入MDC页面
C. 在PFD上按下FORMAT键，然后进入MDC页面
D. 以上都不正确
[单项选择]VHF天线的VSWR应（）。
A. ≤1.2
B. ≤1.5
C. ≤2.0
D. ≤2.5
[单项选择]关于VHF通信正确的是（）
A. VHF通信是辐射式的电波传播，传送距离有限，因此只能近距区域性通话。
B. VHF通信是辐射式的电波传播，传送距离很远，因此能远距通话。
C. VHF通信是天波式的电波传播，传送距离有限，因此只能近距区域性通话。
[单项选择]甚高频VHF是指（）。
A. 3M~30MHz
B. 30M~300MHz
C. 1M~10MHz
D. 10M~100MHz
[单项选择]VHF收发机位于（）
A. 前设备舱
B. 后设备舱
C. 前行李舱
[单项选择]All VHF marine band radios operate in the simplex mode，which means that（）.
A. only one person may talk at a time
B. only two persons may talk at the same time
C. the radio only transmits
D. the radio only receives
