Tech Questions
1.) Define hydraulics and pneumatics.
2.) Identify 2 important facts which will help us understand hydraulic system.
3.) Why is a hydraulic system considered a force system?
4.) What is the main type of liquid used in hydraulics/
5.) Name and briefly describe 5 important uses (examples) of hydraulic from this video.
6.) Name and briefly describe 4 important uses (examples) pneumatics from this video.
7.) What is one of the key differences between pneumatics and hydraulics?
Tech answers
1.)
Hydraulics: the branch of science and technology concerned with the
conveyance of liquids through pipes and channels, especially as a source of
mechanical force or control.
Pneumatics: the branch of physics or technology concerned with the mechanical
properties of gases.
2.)
Two important facts that help us understand hydraulic system is:
-
When a liquid is enclosed in a space and the pressure is applied to the liquid,
the pressure is transmitted equally to all parts of the liquid.
-
It is hard to compress a liquid. If you try to squash a volume of liquid, you still
have that same volume however hard you try to compress it.
3.)
A hydraulic system is called a force multiplier because; if you make one of the 2
pistons much larger than the other then the larger piston can raise a larger load.
The hydraulic system can therefore be called a force multiplier.
4.)
The main liquid used in the hydraulic system is oil.
5.)
-
Hydraulic jack used for jacking up cars.
-
The brake system
-
Heavy machinery (Loader, Dumper & excavator.)
-
Hydraulic spreader
-
Hydraulic cutter
6.)
– Pneumatic drill
-Dentist drill
-Pneumatic screwdriver
- Bus door
7.) One key difference between hydraulics and pneumatics is all pneumatic tools are
very loud, and all hydraulic tools are not very loud.