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corrosive, flammable
about 5000 gallons to 200 gallons they are all different sizes
These are hazard symbols used to show what is in the tanker and what the dangers are eg. toxic and corrosive
The hazard class of the substance being carried
The most common radioactive product carried in a tanker is uranium hexafluoride. If I was under a tank of this, I would put four placards on it: radioactive, corrosive, dangerous when wet and inhalation hazard. Technically all you need is the first two, but you could put the other two on and still be okay.
You can find a job driving a tanker by going to www.jobs-boeing.com or by going to www.job.com these two sites should get you on your way to finding the right job for you.
Hazmat haulers do. A food grade tanker, dry bulk tanker, water tanker, etc. would not.
Normally a Tanker carries some liquid, mostly Oil, therefore the term "Oil Tanker".
Vandal - tanker - ended in 1913.
A super-tanker is a big tank.
Yes you do
The placard on a tanker carrying hazardous materials will tell you the class of the hazard (flammable, explosive, corrosive, etc). If you have access to the North American Guide or a similar reference, the placard will also tell you something a bit more specific about the identity of the hazardous material - its category, or sometimes its chemical name.