On the underside of the truck. Depending on make, model, and year, there'll typically be either two or three tanks on the power unit, or it may be a single tank compartmentalized into three sections. The specific location varies between make and model.
You have a primary and secondary tank. Certain air functions of the truck use the primary and others use the secondary tank.
The capacity of a gas tank will vary according to the truck. Regular size pick ups have a tank that is approximately 20 gallons, whereas a semi truck can have tanks that hold up to 150 gallons.
No.
None. Semi trucks use diesel, not gasoline. Most have dual tanks, and are fueled from both sides.
You don't. The fuel system draws from both tanks concurrently.
You are supposed to drain your tanks daily, especially if your truck has only two tanks, and doesn't have a wet tank.
The air dryer blows out moisture it has collected.
Depends on size of truck and trailer, size of fuel tanks. But a good guest would be about 35,000 lbs.
Who invented the Semi-truck?
If the semi truck knocked on the garbage truck, yes.
They may have up to 300 gallon fuel tanks. It all depends on how the customer orders them.
most semi's have air horns so yes it is possible