A.turned on
B.turning on
C.turn on
D.to turn on
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A.operate
B.check
C.install
D.overhaul
A.flammable vapors from entering machinery space
B.flue gas escaping to atmosphere
C.inert gas escaping to atmosphere
D.air entering inert gas system
A.allow sufficient oxygen in the tank to sustain life
B.prevent outside air from entering the tank
C.provide more discharge pressure
D.comply with pollution regulations
A.displayed in at least 4 different positions on the barge
B.carved on a wooden board and attached to the barge's hull
C.displayed as close to the navigation lights as possible
D.displayed at the highest point of the barge's hull such that it can be seen from either side
A.prevents the flue gas from falling below 3% content of oxygen
B.allows the inert gas piping to be used for gas freeing the tanks
C.opens when there is excessive vacuum on the deck water seal
D.enables outside air to mix with and cool hot flue gasses
最新試題
The purpose of inert gas systems aboard tankers is to（）.
If you are fighting a fire below the main deck of your vessel，which action is most importantconcerning the stability of the vessel? （）
Releasing oil from the sea anchor of a survival craft may（）.
Hoses used for cargo transfer operations must be tested and inspected at specified intervals by（）.
In setting the valves on a steam-smothering system on a tank vessel，the master control valve to cargo tanks should be（）.
The deck water seal of the inert gas system（）.
One of the principal dangers inherent in liquefied petroleum gas is（）.
The component in an inert gas system used for cleaning the gas of solid and sulphur combustion products，while simultaneously cooling the inert gas，is called the（）.
Regulations require that tank vessels handling grade B liquids shall have their cargo pumps separated from all sources of vapor ignition by（）.
During loading and discharging operations，in addition to when the cargo tanks have been properly filled，each inert gas system must be capable of maintaining a minimum gas pressure of（）.