單項(xiàng)選擇題

In setting the valves on a steam-smothering system on a tanker，the master control valve to cargo tanks should be（）.

A.open and individual tank valves open
B.open and the individual tank valves closed
C.closed and the individual tank valves closed
D.closed and the individual tank valves open

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單項(xiàng)選擇題

In order to reduce the accumulation of static electricity while loading petroleum products，you should（）.

A.start to load at maximum pressure
B.start to load slowly
C.increase the air flow into the tank
D.use the overall method of loading only

單項(xiàng)選擇題

If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）.

A.increase
B.decrease
C.stop
D.remain constant

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In setting the valves on a steam-smothering system on a tanker，the master control valve to cargo tanks should be（）.

你可能感興趣的試題

In order to reduce the accumulation of static electricity while loading petroleum products，you should（）.

If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）.

In setting the valves on a steam-smothering system on a tanker，the master control valve to cargo tanks should be（）.

In order to reduce the accumulation of static electricity while loading petroleum products，you should（）.