Pneumatics & Hydraulics

Question 1

Hydraulics & Pneumatics

⚙️ Definition

Answer 1

Pressure: Force applied per unit area (P = F/A), units = Pascals (Pa).
Hydraulics: Uses liquids to transmit force.
Pneumatics: Uses gases to transmit force.

Question 2

Similarities & Differences:

Answer 2

Feature Hydraulics Pneumatics
Fluid type Liquid Gas
Compressibility Incompressible Compressible
Uses Brakes, lifts Air drills, pumps

Question 3

Compressibility: P & H

Answer 3

Liquids: Not compressible → good for precise control.
Gases: Compressible → better for cushioning/rapid motion.

Question 4

Simple p & h systems

Answer 4

Simple Hydraulic System: Syringe connected with tubing and liquid.
Simple Pneumatic System: Air pump with valve and piston.

Question 5

Examples of P & H

Answer 5

Hydraulics: Car brakes, JCB arms, human circulatory system.
Pneumatics: Air brakes in buses, pneumatic tools, dentist’s drill.

Question 6

Circulatory System vs Hydraulic Systems

Answer 6

Component Human Body Hydraulic System
Pump Heart Hydraulic pump
Fluid Blood Oil or water
Pipes Blood vessels Tubing/pipes

Both transport fluids under pressure over long distances.