更多"The quality of EGC messages is()aff"的相关试题:
[单项选择]The quality of EGC messages is()affected by the position of the ship, the time of reception and climatic conditions.
A. sometimes
B. all times
C. never
D. partly
[单项选择]The quality of EGC message is()affected by the position of the ship, the time of reception and climatic condition.
A. sometimes
B. all times
C. never
D. partly
[单项选择]The priority of EGC messages is classified by().
A. distress, urgent and safety
B. safety and routine
C. urgent, safety and routine
D. distress, urgent, safety and routine
[单项选择]EGC safetyNet transmits()types of messages for mariners.
A. four
B. six
C. five
D. three
[单项选择]The quality of the message can be affected by().
A. climate
B. sunshine
C. human beings
D. both a and b
[单项选择]If EGC receiver shares a same antenna with Inmarsat SES, it means that it can receive MSI().
A. from any Inmarsat satellite
B. from any appropriate Navtex and EGC station
C. via the satellite the SES is tracking
D. from any RCC and coast station
[单项选择]If EGC receiver shares a same antenna with INMARSAT MES, it means that it can receive MSI().
A. from any INMARSAT satellite
B. via any appropriate Navtex and EGC station
C. via the satellite the MES is tracking
D. from any RCC and coast station
[单项选择]EGC is a()part of INMARSAT-C.
A. component
B. supportable
C. combined
D. complimentary
[单项选择]关于ZXCTN6300的R4EGC单板,说法错误的是()
A. 提供4个GE光接口和4个GE电接口,最多可同时使用该8个接口
B. 提供4个GE光接口和4个GE电接口,最多可同时使用4个接口
C. 支持光接口激光器自动关断
D. 支持同步以太网
[单项选择]ZXCTN6200/6220设备增强千兆Combo板R4EGC,实现()路GE电信号或光信号业务处理
A. 2
B. 4
C. 6
D. 8
[单项选择]How are the pressure and temperature affected in a diesel engine cylinder during compression?()
A. Pressure and temperature decrease
B. Pressure and temperature increase
C. Pressure decreases and temperature increases
D. Pressure increases and temperature decreases
[单项选择]The lubrication to the cylinders affected by the fire must be ()to prevent seizure and all scavenge drains must be ()to prevent the discharge of sparks and burning oil from the drains into the engine room.
A. decreased;opened
B. decreased;shut
C. increased;opened
D. increased;shut
[单项选择]The pour point of lubricating oils is affected the most by which of the following?()
A. Extensive centrifuging
B. Wax content
C. Water content
D. Acid content
[单项选择]Messages concerning weather conditions transmitted by radiotelephone are preceded by().
A. MAYDAY
B. PAN-PAN
C. SECURITE
D. SOS
[单项选择]国际反海盗信息在C站的EGC上每天()UTC都有最新的广播,船舶应正确设置C站以接收最新的信息。
A. 0000
B. 0800
C. 1200
[单项选择]Air circulation is caused or affected by().
A. the rotation of the earth on its axis
B. convection currents caused by differences in radiant heating between equatorial and polar regions
C. mountain ranges
D. All of the above
[单项选择]The range of a SSB transmission is MOST affected by().
A. atmospheric noise and radiated power
B. the frequency band selected and time of day or night
C. interference and position of the moon
D. radiated power and nearness to shore
[单项选择]If a magnetic compass is not affected by any magnetic field other than the Earth’s,which statement is TRUE? ()
A. Compass error and variation are equal
B. Compass north will be true north
C. Variation will equal deviation
D. There will be no compass error