Yes, they can use hydraulics.
Liquid is needed to use hydraulics. It's what makes hydraulics work.
it runs with hydraulics .the hydraulics contains some oil immersion , fluids.
Cars use hydraulics in the brakes and steering, and planes use hydraulics by adjusting the wings and rising and lowering the landing gear :P
Hydraulics is the use of liquids to transmit power. Pneumatics is the use of gases (usually air) to transmit power.
Hydraulics use liquids as the working fluid, pneumatics use gases as the working fluid.
There currently are no hydraulics on Roblox however if you need them for something you could make your own.
It can use design of canals and also vehicals
Solids do not flow at room temperature, so they are not practical for use in hydraulics. When a gas like air is used in a system similar to hydraulics, it is called pneumatics. Sometimes hydraulic systems use both, like in an automobile lift.
Some do, yes. Some are simply mechanized with chain/belt type apparatus. But about half the time you'll see them with actual hydraulics.
The definition of hydraulics is a descriptive term for a system operated or moved by a fluid. So the answer is no.
Depends how good are the hydraulics.