STANDARD COMPETENCIES:

 

 1. Define fluid power, the industry, and its acronyms.

 2. Describe liquid properties and their measurement including density, specific gravity, specific weight, viscosity, thermal points, and contamination of fluid power systems.

 3. Describe the properties of fluids at rest and Pascal’s principle.

 4. Identify the methods used to size a closed hydraulic system.

 5. Determine the principles involved with columns of liquid, manometers, barometers, and hydrometers.

 6. Describe the principles of liquids in motion in an open system.

 7. Recall the components in typical hydraulic systems, their symbols and hardware.

 8. Describe and draw basic fluid power circuits.

 9. Assess the behavior of gases and the laws that govern them.

 10. List, recall and describe pneumatic components and systems.

 11. Interpret the elements of typical fluid power control systems.

 

 TOPICAL OUTLINE:

 

 I. Fluid power defined, the industry, and its acronyms.

 II. Liquid properties and their measurement

 III. Density, specific weight, and specific gravity

 a. Viscosity

 b. Important thermal points

 c. Other notable properties

 d. Contamination of fluid power systems

 IV. Fluids at rest: Pascal’s principle

 a. The nature of a fluid

 b. Pressure

 c. Pascal’s principle: The hydraulic lever

 d. Work, energy, and power

 V. Sizing the closed hydraulic system

 a. Closed versus open systems

 b. Specifying system performance

 c. Selecting components

 d. Adjustments to theory

 e. Analyzing existing systems

 f. Rotary actuators

 VI. Columns of liquid: Manometers, Barometers, and Hydrometers

 a. Pressures caused by columns of liquid

 b. Vacuums

 c. Barometers and the lifting ability of pumps

 d. Net positive suction head

 e. The manometer

 f. The float tube hydrometer

 VII. Liquids in motion: The open system

 a. Continuity and types of flow

 b. Energy in liquids

 c. Bernouli’s principle

 d. Torricelli’s theorem

 e. Flow measurement

 f. Fluid power

 g. Sizing the open hydraulic system

 h. Losses due to friction

 VIII. Hydraulic system components: symbols and hardware

 a. Selecting components

 b. Reservoirs

 c. Strainers and filters

 d. Pumps

 e. Valves

 f. Lines, fittings, and gauges

 IX. A few basic circuits

 a. A single piston system

 b. Multiple piston systems

 c. The clamp and work circuit

 d. Pump unloading and accumulator circuits

 X Pneumatics: the behavior of gases

 a. The gas laws

 b. Properties of gases

 c. The compression process

 XI. Pneumatic components and systems

 XII. Control of fluid power systems