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
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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
A.degrees of quality of petroleum products
B.flash point range and Reid vapor pressure index of petroleum products
C.grades of crude oil
D.pour point，color，and viscosity index of petroleum products
A.cools the inert gas and prevents soot from entering the cargo tanks
B.acts as an emergency shutdown when inlet pressures exceed the safe working pressure
C.prevents the backflow of hydrocarbon gasses into nonhazardous areas
D.relieves sudden large overpressures in the system
A.filter
B.cooler
C.scrubber
D.purifier
最新試題
The purpose of the deck seal in an inert gas system is to prevent（）.
What alarm is NOT found on an inert gas system? （）
If a leak occurred while loading diethylenetriamine，the chemical data guide indicates you would smell an odor similar to（）.
The blowers of an inert gas generation system aboard a tanker，will be automatically secured if（）.
Upon arrival at the discharging port，the inert gas system is（）.
The purpose of inert gas systems aboard tankers is to（）.
The deck water seal of the inert gas system（）.
The designations A，B，C，D and E grades of cargo refer to the（）.
In setting the valves on a steam-smothering system on a tank vessel，the master control valve to cargo tanks should be（）.
Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with（）.