Label each of the line types in the drawing below. ( will not mark you brainlest or whatever if you don't at least try to help) :')

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit. explain why the pneumatic piston stumbles when it hits an obstacle.

Select any two (2) areas of applications of chain-drive. (clo4) a)-permanent lubrication necessary b)-hydraulic forklift truck operation c)-rigging and heavy moving materials d)-relatively high maintenance costs e)-costlier than belt drives

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.