GMDSS理论英语题库(6)

湖 北 交 通 职 业 技 术 学 院

134. International SafetyNet and Navtex services promulgate MSI by means of ___

A FEC and ARQ B Satellite and terrestrial communications C radio and telex D NBDP 答案 B

135. SafetyNet is a maritime safety information broadcast service offering____on suitable equipped ships .

A free reception B free transmission

C dedicated reception D dedicated transmission 答案 A

136. The International SafetyNet Service is able to address the call to ____ A all vessels B selected groups of ships C A particular ship D A,B ,C are all correct 答案 D

137. Ships sailing in ____are able to receive and print out EGC messages. A a fixed area or Navarea in any ocean region B a navarea or weather forecast area

C any designated area or given geographic position D anywhere of the world 答案 C

136. 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 答案 D

137. the quality of EGC messages is____ affected by the position of the ship ,the time of reception and climate conditions.

A sometimes B all time C never D partly 答案 C

138. All EGC messages ____owing to their nature of importance A can suppress B can be suppressed C can not be suppressed D are to be suppressed 答案 C

139. If EGC receiver share a same antenna with Inmarsat SES, 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 SES is tracking D from any RCC and coast station 答案 C

140. NAVTEX transmitter identification character B1 is a single unique letter which is allocated to each Navtex____

A receiver B SES C CES D Transmitter

16

湖 北 交 通 职 业 技 术 学 院

答案 D

141. The WWNWS is a coordinated global service for the broadcast by radio of vital information on ____ to marine navigation A ship’ s movement B safety C SHIP’S management D Hazards 答案 D