A.pressure
B.toxicity
C.temperature
D.flammability
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A.checking the loading sheet
B.loading to within 1 percent of outage
C.loading to within 10 percent of the safety relief valve setting
D.filling to the maximum level indicated on the liquid level gaging device
A.exposure limits
B.concentration limits
C.threshold limit values
D.substance limit values
A.they generate heat
B.they emit hydrogen
C.of the toxic fumes they emit
D.they recharge faster in a well ventilated space
A.as it warms up it becomes heavier than air
B.the way it reacts with sea water
C.the strong odor it produces
D.its low temperature causes frostbite or freezing
A.It increases its volume
B.It reduces its volume
C.It has less product per volume
D.None of the above
最新試題
When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas)，you should （）.
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.
What is the proper first aid for LPG in the eye? （）
The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
When fueling has been completed（）.
The amount of LFG that may be loaded into a given tank is determined by（）.
The tops of vents from gasoline tanks should terminate（）.
The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called（）.
Which is NOT a safety precaution to be observed during the loading of LFG?（）
Gasoline vapor tends to collect（）.