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
According to the Chemical Data Guide，which reactive group(s) is/are not compatible with the products polybutene and o-xylene? （）
Reid vapor pressure is（）.
What alarm is NOT found on an inert gas system? （）
The number or name of a tank barge shall be（）.
The deck water seal of the inert gas system（）.
The purpose of inert gas systems aboard tankers is to（）.
Regulations require that cargo pumps in tankers carrying grade D liquid cargo shall be isolatedfrom sources of vapor ignition by（）.
Upon arrival at the discharging port，the inert gas system is（）.
Hoses used for cargo transfer operations must be tested and inspected at specified intervals by（）.
One of the principal dangers inherent in liquefied petroleum gas is（）.