A.with
B.by
C.of
D.for
您可能感興趣的試卷
你可能感興趣的試題
A.Scrubber
B.Demister
C.Deck water seal
D.Final filter
A.pressure vacuum relief valves
B.excess flow valves
C.safety relief valves
D.flame screens
A.in the ends of each tank
B.in the expansion trunk of each tank
C.above the weather deck
D.there are no requirements in the regulation
A.phosgene gas
B.sulfuric acid gas
C.sulfur dioxide gas
D.carbon tetrachloride
A.5 times the maximum working pressure on the hose during cargo transfer
B.one half the designed working pressure
C.4 times the pressure of the cargo pump used for transferring
D.5 times the minimum working pressure on the hose during cargo transfer
最新試題
Name one major advantage of transporting gas under refrigeration.（）
LFG tank and pipeline maintenance should include（）.
The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
What normally helps in detecting escaping gas? （）
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
Compared to the amount of concentrated foam liquid used，the amount of low expansion mechanical foam produced is（）.
The amount of LFG that may be loaded into a given tank is determined by（）.
Gasoline vapor tends to collect（）.
What is the proper first aid for LPG in the eye? （）
One of the principal dangers inherent in liquefied petroleum gas is（）.