單項(xiàng)選擇題

When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it（）.

A.one meter from the tank bottom and one meter below the tank top
B.one half the ullage of the tank and one meter below the tank top
C.one half the ullage of the tank and one meter above the tank bottom
D.at three meter intervals from the tank top to the bottom

你可能感興趣的試題

單項(xiàng)選擇題

When loading bulk liquid cargo，what is the first action you should take if a cargo valve jammed open?（）

A.Call the owner，operator，or terminal supervisor
B.Unplug the deck scuppers
C.Order the dock man to shut down
D.Run out the vessel's or terminal's fire hose

單項(xiàng)選擇題

When considering a vessel’s stability，which spaces in a general cargo vessel are the best locations for the carriage of bulk grain? （）

A.Deep tanks
B.Lower holds
C.Lower holds at the ends of the vessel
D.'Tween-decks

When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it（）.

你可能感興趣的試題

When loading bulk liquid cargo，what is the first action you should take if a cargo valve jammed open?（）

When considering a vessel’s stability，which spaces in a general cargo vessel are the best locations for the carriage of bulk grain? （）

When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery，check it（）.