密性试验焊缝有缺陷的应：
A. 重新做试验后再修复
B. 重新做试验
C. 修复后重新做试验
D. 修复
You are keeping the required garbage disposal records. The amount of garbage disposed must
A. cubic meters
B. both cubic meters and cubic feet
C. both kilos and pounds
D. barrels of 55 gallon capacity
Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on
A. There shall be at least 3 ventilator ducts open to the atmosphere
B. At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge
C. At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge
D. Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartments
The tanker has in operation，except as provided for in Regulation 15(5) and (6) of Annex A of MARPOL 73/78，an oil discharge monitoring and control system and ______ as required.
A. an IGS
B. a scriber
C. a P/V
D. a slop tank arrangement
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