单项选择题
A.enter the tank safely B.suspect the accuracy of the reading C.ventilate the tank D.test for nitrogen
Which vessel in ocean service is not subject to Annex V...
单项选择题Which vessel in ocean service is not subject to Annex V of MARPOL 73/78? （）
A.A 20-foot sailing vessel B.A 26-foot tug and tow C.An uninspected 35-foot passenger vessel D.A Navy Destroyer
Which substance is NOT considered to be Oil under the p...
单项选择题Which substance is NOT considered to be Oil under the pollution prevention regulations? （）
A.Petroleum and fuel oil B.Sludge C.Oil mixed with dredge spoil D.Oil refuse and oil mixed with wastes
Which step is NOT generally taken when gas-freeing a ta...
单项选择题Which step is NOT generally taken when gas-freeing a tank?（）.
A.Washing the tank interior with sea water B.Application of degreasing solvents C.Removal of corrosion products and sludge D.Fresh air ventilation
