单项选择题
A.Hose connections to the tank must be made with a minimum of three bolts
B.There must be water pressure on the fire main
C.You must shut down if another vessel comes alongside
D.If transferring at anchor，you must display a red flag by day and a red light at night
单项选择题 You are Master of a vessel that is sold in a foreign country after discharge of cargo. What is your responsibility to the crew in regards to return to the United States? （）
单项选择题 You are loading a cargo that includes cylinders of acetylene aboard your break bulk vessel. Which statement is true? （）
单项选择题 You are loading a cargo tank on your container ship. The tank displays the red label shown. Which statement is TRUE? （）