单项选择题
A.Reduce the loading rate B.Notify the engine room of the procedure C.Maintain communications with the dock man D.Give the operation your undivided attention
A.A prohibition from loading a cargo from a country when the cargo may be a carrier of infectious diseases B.Arrest of a vessel by legal authorities to satisfy claims through exercise of a maritime lien C.Damage caused by riot of the population of a port D.Losses caused by fines from polluting the harbor after malfunction of a piping system
A.They are self-priming B.Decreasing the speed of rotation will decrease the discharge pressure C.Opening the discharge valve wider will increase the discharge pressure D.All of the above