A.97 times greater
B.94 times greater
C.10 times greater
D.2 times greater
您可能感兴趣的试卷
你可能感兴趣的试题
A.over an electrically heated platinum filament
B.where it is mixed with nitrogen
C.where it is ignited by a sparking device
D.where its specific gravity is measured
A.combustible liquid
B.flammable gas
C.flammable liquid
D.flammable solid
A.the gasoline tank is full
B.the bilges，cabins，etc. are thoroughly ventilated
C.you have fresh water on board
D.Each of the above is followed
A.with
B.by
C.of
D.for
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
A.keel
B.center of buoyancy
C.tipping center
D.amidships section
最新试题
Combustible gas indicators operate by drawing an air sample into the instrument（）.
Compared to the amount of concentrated foam liquid used，the amount of low expansion mechanical foam produced is（）.
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
What normally helps in detecting escaping gas? （）
The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
The weight of liquefied petroleum gas vapors as compared to air is（）.
Which is NOT a safety precaution to be observed during the loading of LFG?（）
What is the proper first aid for LPG in the eye? （）
The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
Before starting a gasoline engine on a motorboat，you should make sure for safety that（）.