JOB RESPONSIBILITY 1.0: UNDERSTAND THE FUNCTION OF HYDRAULIC COMPONENTS IN CIRCUITS.
- Outcome 1.1.1: Recognize hydraulic symbols
- Outcome 1.2.1: Read circuit diagrams
- Outcome 1.2.2: Understand the application of pumps and intensifiers.
- Outcome 1.2.3: Understand the application of valves.
- Outcome 1.2.4: Understand the application of actuators.
- Outcome 1.2.5: Understand the application of regenerative circuits.
- Outcome 1.2.6: Understand the application of accumulators.
- Outcome 1.2.7: Understand the application of fluids.
- Outcome 1.2.8: Understand the application of fluid conditioning.
- Outcome 1.2.9: Understand the application of connectors and conductors.
- Outcome 1.2.10: Understand the application of a prime mover.
- Outcome 1.2.11: Understand the application of hydrostatic systems.
- Outcome 1.2.12: Understand the application of steering.
JOB RESPONSIBILITY 2.0: ANALYZE LOADS AND MOTION.
- Outcome 2.1.1: Select the proper formulae to calculate force, torque and speed.
- Outcome 2.2.1: Understand linear load and motion parameters.
- Outcome 2.2.2: Understand the principles of pulley systems.
- Outcome 2.2.3: Understand the principles of levers.
- Outcome 2.2.4: Understand rotary load and motion parameters (solve for T).
- Outcome 2.2.5: Understand the principles of gearing.
- Outcome 2.3.1: Calculate the work profiles of a hydraulic system.
JOB RESPONSIBILITY 3.0: SELECTING COMPONENTS FOR HYDRAULIC SYSTEMS.
- Outcome 3.1.1: Use the proper formula to size cylinders.
- Outcome 3.1.2: Calculate the reaction force on a cylinder rod bearing.
- Outcome 3.1.3: Understand the importance of rod column strength.
- Outcome 3.1.4: Calculate the thrust for a toggle mechanism.
- Outcome 3.1.5: Calculate the hydraulic pressure to support jib boom loads.
- Outcome 3.2.1: Calculate torque, speed, and horsepower of hydraulic motors.
- Outcome 3.2.2: Understand break away, running and starting torque.
- Outcome 3.2.3: Understand shaft torque and mounting capacity.
- Outcome 3.2.4: Understand radial and axial load limitations.
- Outcome 3.2.5: Understand speed requirements and limitations.
- Outcome 3.2.6: Calculate efficiencies.
- Outcome 3.3.1: Calculate pump size for required flows.
- Outcome 3.3.2: Understand inlet conditions.
- Outcome 3.3.3: Understand speed requirements and limitations.
- Outcome 3.3.4: Understand direction of rotation
- Outcome 3.3.5: Understand pressure capabilities.
- Outcome 3.4.1: Understand the selection process of a pressure control valve.
- Outcome 3.4.2: Understand the selection process of a directional control valve.
- Outcome 3.4.3: Understand the application of logic elements (cartridge valves)
- Outcome 3.5.1: Calculate the capacity of a reservoir using volume requirements.
- Outcome 3.5.2: Understand the limitations of the reservoir for fluid conditioning.
- Outcome 3.5.3: Understand the requirements of a properly designed reservoir.
- Outcome 3.6.1: Understand the difference between isothermal and adiabatic conditions.
- Outcome 3.6.2: Understand the purposes of the accumulator.
- Outcome 3.7.1: Calculate intensifier ratio for given pressure and flow.
- Outcome 3.8.1: Calculate the size of fluid conductors given velocity and flow.
- Outcome 3.8.2: Understand safety factors for fluid conductors.
- Outcome 3.9.1: Calculate the head load.
- Outcome 3.9.2: Understand the effects of hydraulic pressure loss and temperature change.
- Outcome 3.10.1: Ensure temperature and viscosity compatibility.
- Outcome 3.10.2: Ensure component compatibility.
- Outcome 3.11.1: Select filter type and location.
- Outcome 3.11.2: Specify means for proper fluid sampling.
JOB RESPONSIBILITY 4.0: ANALYZE AND TROUBLESHOOT HYDRAULIC SYSTEMS.
- Outcome 4.1.1: Identify troubleshooting parameters.
- Outcome 4.2.1: Verify completion of start-up check list.
- Outcome 4.2.2: Verify correct component selection.
- Outcome 4.2.3: Verify correct component connections.
- Outcome 4.2.4: Verify correct component operation.
- Outcome 4.2.5: Analyze circuit design.
- Outcome 4.3.1: Trace the operational sequence of a circuit.
- Outcome 4.3.2: Distinguish between correct and incorrect operation of components.
- Outcome 4.4.1: Identify contaminants in a hydraulic fluid analysis.
JOB RESPONSIBILITY 5.0: ELECTROHYDRAULIC CONTROL SYSTEMS.
- Outcome 5.1.1: Familiarization with control system requirements.
- Outcome 5.1.2: Familiarization with ladder logic diagrams, function block and structured text.
- Outcome 5.1.3: Familiarization with digital communication technology.
- Outcome 5.1.4: Understand the operation of proportional valves.
- Outcome 5.1.5: Understand the application of proportional valves.
- Outcome 5.1.6: Understand the application of sensors.
- Outcome 5.1.7: Identify components on the amplifier card.
HYDRAULIC SPECIALIST CERTIFICATION REFERENCE EQUATIONS
Reference Equations: AOBE PDF DOCUMENT
HYDRAULIC SPECIALIST CERTIFICATION REVIEW QUESTIONS SOLUTIONS
Review Problems and Examples Answers and solutions:
HYDRAULIC SPECIALIST CERTIFICATION PRETESTS
Pretest 1
Pretest 2
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- PRETEST #2, QUESTIONS #1, #2, #3, & #4
- PRETEST #2, QUESTIONS #5 & #6
- PRETEST #2, QUESTIONS #7
- PRETEST #2, QUESTIONS #8 & #9
- PRETEST #2, QUESTIONS #10
- PRETEST #2, QUESTIONS #11
- PRETEST #2, QUESTIONS #12, #13, #14, & #15
- PRETEST #2, QUESTIONS #16
- PRETEST #2, QUESTIONS #17
- PRETEST #2, QUESTIONS #18
Pretest 3
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- PRETEST #3, QUESTIONS 1, 2,3,4,5,6 & 7
- PRETEST #3, QUESTION 8
- PRETEST #3, QUESTIONS 9, 10, & 11
- PRETEST #3, QUESTION 12
- PRETEST #3, QUESTIONS 13, 15, 16, 17, & 18
- PRETEST #3, QUESTION 14
Pretest 4