A、dock riser
B、ship's cargo tanks
C、shore tank discharge
D、All of the above
更多“Oil product samples should be taken from the（）.”相关的问题
A、oil foaming will occur B、large quantities of oil are consumed C、lube oil viscosity is always decreased D、corrosive by-products are usually formed
A、water contamination B、mixing oils of two widely different viscosities C、overheating D、aeration
A、prevent the gear box from leaking B、prevent the oil from becoming inflammable C、make sure it has not become contaminated D、make sure the motor bearings are lubricated
A、degrees of quality of petroleum products B、flash point range and Reid vapor pressure index of petroleum products C、grades of crude oil D、pour point，color，and viscosity index of petroleum products
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