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（）.

Pump out No.2 port ballast tank to（）.

On the all-purpose nozzle，the position of the valve when the handle is all the way forward is（）.

Any oil tanker which is not required to be provided with segregated ballast tanks in accordance with this paragraph may，however，be qualified as a segregated ballast tanker （）it complies with the other requirements of paragraphs of this Convention.

On a vessel carrying grades A，B，C or D cargoes，enclosed spaces where sources of vapor ignition are normally present shall NOT be segregated from cargo tanks by（）.

Litmus paste is used in order to determine（）.

After an IOPP Certificate is issued to an inspected vessel，how many other surveys of the vessel’s pollution prevention equipment are conducted during the period of validity of the certificate?（）

Every oil tanker operating with dedicated clean ballast tanks shall be（）with a Dedicated Clean Ballast Tank Operation Manual detailing the system and specifying operational procedures.

ACCIDENTAL ESCAPE OF OIL OUT OF A TANK WHEN IT GETS TOO FULL BECAUSE PUMPING WAS NOT STOPPED IN TIME defines（）.