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【单选题】

At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.

A、one

B、two

C、three

D、four

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更多“At least（）radar transponder shall be carried on each side of every cargo ship of 500 gross tonnage and upwards.”相关的问题
第1题
[单选题] Which conditions will normally cause a SART to operate in the active mode?（）

A、It will respond only to interrogation by 9-Ghz radar signals  B、A SART will normally respond to interrogation from a searching vessel's radar if the radar antenna is at least 15 meters high  C、A SART will normally respond to interrogation from a searching aircraft's radar if the radar's output power is at least 10，000 watts and the aircraft is at a height of 3000 feet and within 30 nautical miles  D、All of the above  

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第2题
[单选题] The closest point of approach (CPA) of a contact on a relative motion radar may be determined（）.

A、immediately when the contact is noted on radar  B、only if the radar scope is watched constantly  C、after the contact has been marked at least twice  D、by an occasional glance at the radar  

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第3题
[单选题] How long must the GMDSS radio log be retained on board?（）

A、At least two years after the last entry  B、At least one year after the last entry  C、At least 90 days after the last entry  D、At least 30 days after the last entry  

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第4题
[单选题] How long must the GMDSS radio log be retained on board（）.

A、At least two years after the last entry  B、At least one year after the last entry  C、At least 90 days after the last entry  D、At least 30 days after the last entry  

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第5题
[单选题] In the Cisco Resilient Ethernet Protocol （REP）， how many ports are always blocking？（）

A、zero  B、at least one  C、at least two  D、at least four  E、at least three  

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第6题
[] Before starting an engine by air, the engine must（）

A、A.be turned by a turning gear for at least one minute  B、B.be turned by a turning gear for at least two minutes  C、C.be turned at least one complete turn  D、D.be turned at least two complete turns  

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第7题
[单选题] Each fire hydrant must have at least one spanner and at least one（）.

A、hose rack or reel  B、all purpose nozzle  C、foam applicator  D、pick axe  

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第8题
[单选题] According to Annex V to MARPOL 73/78，garbage containing plastic is permitted to be disposed of by（）.

A、incinerating offshore  B、discharging when at least 12 nautical miles from nearest land  C、grinding to less than 1 and discharging at least 12 nautical miles from nearest land  D、grinding to less than 1 and discharging at least 25 nautical miles from nearest land  

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第9题
[单选题] According to Annex V to MARPOL 73/78，garbage containing plastic is permitted to be disposed of by（）.

A、Incinerating offshore  B、Discharging when at least 12 nautical miles from nearest land  C、Grinding to less than 1 and discharging at least 12 nautical miles from nearest land  D、Grinding to less than 1 and discharging at least 25 nautical miles from nearest land  

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