As much as their company is willing to pay them. Right now, with the new CSA regulations going into effect, it's a bit premature to say exactly what rates will be. Not to mention experience level plays into it - if you're fresh out of truck driving school and think you're going to get a high paying job hauling hazmat tankers, sorry to break it to you, but that's not happening. The tanker endorsement isn't going to guarantee you a job pulling tankers - it's a simple written test, and a company actually pulling tankers - especially hazmat tankers - is going to want you to do your time and prove you can actually drive a truck, first.
What'll also matter is how they're being paid... mileage, hourly, percentage, etc... and also what kind of environment they're working in, e.g., oilfields, fuel hauling, over-the-road, etc.
Depends on their experience, and who they work for. If you have the endorsements, but no experience, don't expect to get much out of it.
A 1/4 ton pickup. Vehicles carrying any quantity of hazmat which requires placards to be displayed require the driver to have a CDL and hazmat endorsement.
Yes, and I have done exactly that, and in NC, to boot. If you haven't seen it, it's because most companies prefer instead to send another truck to pick up the trailer instead of having the trailer towed, as well as not wanting to pay the additional costs of having the trailer towed with the truck. Restrictions are present, of course. For example, the tow truck driver must have all necessary endorsements. For example, if a vehicle pulling a tanker full of hazardous chemicals had to be towed, that tow truck driver would need a Hazmat endorsement and a tanker endorsement (in NC, the two endorsements together are an "X" endorsement, although some states show separate "H" and "K" endorsements for hazmat and tanker, respectively. Another thing tow truck drivers in NC need to be wary of is low tonnage roads, particularly in the Raleigh-Durham area. The weight limit on these roads is 6-1/2 tons per axle, and the fines for violations of this are very steep.
If you don't have a hazmat endorsement, up to 1,000 lbs.
Up to 1000 lbs. before a hazmat endorsement is required.
Up to 1000 lbs. before a CDL and hazmat endorsement is required.
The tanker truck driver's partner, who the Terminator tells to "Get out!" of the truck.
right above the taxi place
Assuming you mean a tandem axle truck, that would be a Class B CDL with tanker endorsement.
You will need a Class B CDL with tanker endorsement.
Not unless you're hauling something such as contaminated soil, which requires a hazmat endorsement.
Hazmat haulers are required to stop at railroad crossings - a food grade tanker would not. They only have to stop long enough to ensure there isn't a train coming.
I'm having a hard time finding any regulation which directly addresses this, but when I look at the criteria for such job postings, none of them are requiring applicants to have a hazmat endorsement.