海船船员考试
单选题Which one of the following is the safety signal?（）.A SSSB TTTC XXXD FFF
题目
SSS
TTT
XXX
FFF
参考答案和解析
相似问题和答案
第1题：
A. VGA
B. XGA
C. Component video
D. DisplayPort
第2题：
You are on international waters during a heavy rainstorm and hear a vessel sounding a fog signal of one prolonged blast followed by two short blasts． Which of the following could it be？Ⅰ．A vessel laying submarine cable making way．Ⅱ．A pilot vessel on station at anchor．
A.Ⅰ only
B.Ⅱ only
C.Either Ⅰ or Ⅱ
D.Neither Ⅰ nor Ⅱ
第3题：
Which of the following is defined as static information?___________.
A.Navigational status
B.Safety related message
C.MMSI
D.Route plan
下列哪个定义为静态信息？海上移动通信业务标识。
第4题：
Which of the following represents a safety hazard？（）
- A、liquid on the floor
- B、a tiled floor
- C、a concrete floor
- D、carpet
正确答案:A
第5题：
Which one of the following is not relevant to the others?（）
Aairport
Bairfield
Cairline
Dair-conditioned
D
略
第6题：
A. Signal loss
B. Signal bleed
C. Data collision
D. Crosstalk
第7题：
A vessel is approaching from dead ahead.Both of her sidelights are visible and her range lights are in line. Which of the following could you do first? ______.
A.Sound one blast of the whistle
B.Alter course to starboard
C.Construct a radar plot
D.Sound the danger signal
一船自正前方正在接近。她的两舷灯可见并桅灯成一线。你将首先采取以下什么措施？鸣放一短声（先A后B）
第8题：
A. Upgraded copper lines allow maximum speed greater than cable
B. Signal is not shared back to the switch
C. Signal is shared back to the switch
D. Distance is not a factor in signal speed
第9题：
Which of the following SCSI signaling systems uses one return line for every outgoing line， is less susceptible to interference， signal degradation， crosstalk， and allows a cable length of up to 25 meters？（）
- A、 SE （Single Ended）
- B、 DE （Double Ended）
- C、 LVD （Low Voltage Differential）
- D、 HVD （High Voltage Differential）
正确答案:D
第10题：
Which of the following transmits a digital signal?（）
- A、VGA
- B、XGA
- C、Component video
- D、DisplayPort
正确答案:D