A.keel
B.center of buoyancy
C.tipping center
D.amidships section
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A.keeps sparks from falling into an open tank
B.secures covers on ullage openings
C.prevents sparks from getting out of an engine's exhaust system
D.grounds static electricity
A.after the discharge valve
B.between the pump and discharge valve
C.after the suction valve
D.between the pump and suction valve
A.CCS marine surveyor
B.certified marine chemist
C.port engineer
D.MSA marine inspector
A.cooling the gas below the ignition point
B.cutting off the supply of oxygen
C.stopping the flow of gas
D.interrupting the chain reaction
A.odor
B.color
C.pressure
D.density
最新試題
If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）
The amount of LFG that may be loaded into a given tank is determined by（）.
What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.
Where should the tops of vents from gasoline tanks terminate?（）.
One of the principal dangers inherent in liquefied petroleum gas is（）.
It should be noted（）the use of synthetic mooring ropes able to produce sparks by their manipulation is absolutely forbidden on board petroleum tankers and LPG or LNG carriers，or any vessels carrying inflammable substances.
The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.
What normally helps in detecting escaping gas? （）
Storage batteries should be charged in a well ventilated area because（）.
What is the proper first aid for LPG in the eye? （）