单项选择题
A.displacement in metric tons B.total weight including cargo C.volume in cubic feet D.the volume of the enclosed space
Grinding to eliminate shallow surface defects should be...
单项选择题Grinding to eliminate shallow surface defects should be done（）.
A.parallel to the longitudinal direction of the chain B.perpendicular to the direction of the anchor chain C.diagonally across the link of the anchor chain D.around the circumference of the chain link
Fuel oil tank vents are fitted with a screen which will...
单项选择题Fuel oil tank vents are fitted with a screen which will stop（）.
A.oil from flowing out of the tank vent B.air from entering the tank vent C.vapors from leaving the tank vent D.flames on deck from entering the tank vent
Freeboard is measured from the upper edge of the（）.A.bu...
单项选择题Freeboard is measured from the upper edge of the（）.
A.bulkwark B.deck line C.gunwale bar D.sheer strake
