If your passenger vessel is fitted with a loudspeaker system，it must be tested at least once ______.A.every weekB.a dayC.every tripD.a watch or once a trip，whichever is shorter
If your passenger vessel is fitted with a loudspeaker system，it must be tested at least once ______.
A.every week
B.a day
C.every trip
D.a watch or once a trip，whichever is shorter
相关考题：
If your passenger vessel has been issued a stability letter，it must be ______.A.filed in the ship's officeB.posted in a passenger areaC.posted adjacent to the Certificate of InspectionD.posted in the pilothouse
What is a requirement for remote manual shutdown stations for internal combustion engine driven cargo pumps on tank barges ________．A.They must be conspicuously markedB.They must be located at least 10 feet from the engineC.There must be at least two such shutdown devicesD.The valve rods shall be fitted with stuffing boxes
You are planning to use the crude oil washing system on your tanker．What is required to prevent electrostatic buildup in the tanks ________．A.The portable machines should be set at the proper drop for the first wash before the fixed machines are usedB.The tank used as the source for the tank cleaning machines should be debottomed for at least one meterC.The inert gas system must reduce the oxygen content in the tank to at least 18%D.The fixed machines must be operated simultaneously with the portable machines to equalize the electrostatic potential
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If your vessel is the stand-on vessel in a crossing situation ______.A.you must keep your course and speedB.you may change course and speed as the other vessel must keep clearC.the other vessel must keep her course and speedD.both vessels must keep their course and speed
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单选题During a stability test on a small passenger vessel（）.Athe vessel must be moored snuglyBeach tank must be partially full to show it does not leakCall dunnage，tools，and extraneous items are securedDwater under vessel must be deep enough to prevent grounding
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