Fluid Power
Price:
$125.00
This certificate covers the function, operation, and application of common components used in fluid power circuits and systems. It also assesses the understanding of how fluid power components and accessories are placed together to create circuits and systems for powering industrial machines. The major emphasis is on pneumatics with a lesser emphasis on hydraulics and vacuum systems. Electro-fluid power troubleshooting is emphasized. Topics include: Circuits and logic, compressors and conditioners, connectors, directional control valves, electro-fluid power, filters, fittings, flow control & relief valves, gages and instruments, hoses, lubricators, metal tubing, motors, pressure sequence valves, pump and reservoir, regulators, safety, theory, threaded pipe, troubleshooting & testing, an vacuum.
This certificate test is intended for entry-level mechanics, technicians and technologists who will be involved in the application, installation, modification or troubleshooting of Fluid Power systems. To purchase a test please click on the button below which will prompt you to send an email to [email protected] requesting an invoice. Please include which test(s) you would like to purchase.
This certificate is aimed at skilled electrical technicians working relatively independently in the assembly, test, startup, troubleshooting, maintenance, repair or upgrade of electro-mechanical machines or systems. It should be a prerequisite for technicians wishing to move on to industrial machines controlled by PLC’s or to industrial machines utilizing velocity, acceleration or other motion control techniques.
You must complete your test within 6 months of completing your purchase. After 6 months, you will no longer have access to your test.
You will have only one attempt at passing the test per purchase.
Number of questions: 125
Passing score: 72%
Approximately 2.5 Hours.
Test Topics & Questions
Actuators
- Describe the operation of a double-acting pneumatic cylinder and give its schematic symbol
- Describe the function of a single-acting pneumatic cylinder and give an application
- Describe how cylinder sizes are specified, Size a pneumatic cylinder given a load, and Describe how to size a pneumatic cylinder
- Describe five common tie rod cylinder mounting styles and give an application of each
- Select a cylinder mounting style for a given application"
- Describe the operation of a quick exhaust valve and give its schematic symbol
- Describe 6 symptoms of pneumatic cylinder failure
- Describe the function of a rotary actuator and give an application
- Describe the function of a shock absorber
- Describe how to troubleshoot slow actuator speed
- Calculate the extension force of a cylinder given its size and pressure
Best Practices
- Describe the importance of eliminating air leaks
- Describe four common pneumatic component failures and their probable causes
- Give five guidelines used in the construction of pneumatic circuits
Circuits and Logic
- Describe the function of a pneumatic schematic
- Describe the line symbols used with fluid power circuits
- Design speed control circuits
- Design a pneumatic circuit that uses an externally air-piloted DCV
- Define air logic and give four applications
- Describe the function of a shuttle valve and give an application
- Connect and operate an air logic circuit to control a reciprocating cylinder
- Connect a hydraulic circuit given a schematic
Compressor and Conditioners
- Explain how air pressure is created in a pneumatic system
- Describe the function of a dryer and give an application
- Describe the operation of a refrigeration type air dryer
- Describe the principle of operation of three types of dryers and give an application of each
- Describe the function of pneumatic system trap
- Describe the operation of two types of pneumatic traps and give the schematic symbol of each
Connectors
- Describe the function of a pneumatic quick connect fitting and give its schematic symbol
- Describe the function of a tee and give its schematic symbol
- Describe the function of a hydraulic quick disconnect fitting and give its schematic symbol
- Describe the function of a hydraulic quick disconnect fitting and give its schematic symbol
Direction Control Valves
- Describe the function of a 5-way, 3-position pneumatic DCV and give an application
- Describe the operation of a 5-way, 3-position pneumatic DCV and give its schematic symbol
- Describe the function of a 3/2 pneumatic DCV and give an application
- Connect and operate a pneumatic cam-operated 3/2 DCV
- Describe the operation of a 3/2 pneumatic DCV and give its schematic symbol
- Describe the function of a pneumatic cam-operated valve and give an application
- Describe the operation of a pneumatic cam-operated DCV and give its schematic symbol
- Describe the function of an externally air-piloted DCV and give an application
- Describe the operation of an externally air-piloted DCV and give its schematic symbol
- Describe the function of a pilot-operated DCV and give an application
- Describe the operation of internal and external DCV pilots of a pilot-operated DCV
- Describe the function of internal and external DCV pilots
- Describe the symptoms of pilot-operated DCV failure and their causes
- Describe how to inspect and troubleshoot a pilot-operated DCV
- Describe the operation of a 3-position, 4-way DCV and give an application
- Describe the operation of a 3-position, 4-way DCV and give its schematic symbol
- Connect and operate a double-acting cylinder using a 4/3 solenoid-operated hydraulic DCV
- Connect and operate a double-acting cylinder using a 4/2 solenoid-operated DCV
- Connect and operate a single-acting cylinder using a 5/2 solenoid-operated pneumatic DCV
Electro-Fluid Power
- Describe the operation of two types of hydraulic solenoids and explain the application of each
- Describe the operation of two types of solenoid-operated pneumatic DCVs
- Describe the operation of a solenoid-operated hydraulic DCV and give its schematic symbol
- Describe the function and operation of a hydraulic DCV manual override
- Use the manual override of a solenoid-operated pneumatic DCV to jog a cylinder
- Use the manual override if a solenoid-operated hydraulic DCV to jog a cylinder
- Describe the function of electro-pneumatic controls and give an application
- Describe the function and operation of a pneumatic DCV manual override
- Describe the function of a limit switch and give an application
- Describe how to interpret limit switch symbols
- Describe the operation of a limit switch and give its schematic symbol
- Describe the operation of limit switch in an event sequencing circuit
- Describe the operation of a single-cycle cylinder reciprocation circuit
Filters
- Describe the function of an air filter
- Describe the operation of an air filter and give its schematic symbol
- Drain a pneumatic filter
- Describe two methods of removing water vapor from a pneumatic system
- Describe four symptoms of filter failure and their causes
- Describe how to inspect and troubleshoot a filter
Fittings
- Describe the construction and give an application of three types of pneumatic fitting threads
- Install and seal a straight thread fitting
- Describe the function of an adapter and give an application
- Describe the UNF thread size used for pneumatic fittings
- Describe the operation of straight threaded fittings
- Describe how to identify and specify pipe size
- Identify the nominal pipe size of a fitting given an example
- Describe the function of a reducing bushing and give an application
- Install a reducing bushing to connect an oversized port
- Describe how to specify the size of a reducing bushing
- Identify the shape, type and size of tubing connectors
Flow Control & Relief Valves
- Describe the function of a muffler and give its schematic symbol
- Describe the function of a pneumatic check valve and give an application
- Describe the operation of three types of check valves and give their schematic symbol
- Describe the function of a check valve and give an application
- Connect and operate a check valve
- Describe the operation of two types of pneumatic check valves and give their schematic symbols
- Describe the operation of a flow control valve and give its schematic symbol
- Connect and adjust a flow control valve to control speed of an actuator
- Describe what determines the speed of a pneumatic actuator
- Describe the effect of actuator load changes on flow control valve operation
- Describe the operation of a flow control valve and give its schematic symbol
- Describe the function of the flow control valve and give an application
- Troubleshoot a flow control valve using an in-circuit test
- Describe how to inspect and troubleshoot a flow control valve
- Describe the symptoms of flow control valve failure and their causes
- Connect and adjust a flow control valve to control speed of an actuator
- Describe the operation of a meter-in flow control circuit and give an application
- Connect and operate a meter-in flow control circuit
- Describe the operation of a meter-out flow control circuit and give an application
- Connect and operate an exhaust port speed control circuit
- Connect and operate a meter-out flow control circuit
- Describe the operation of an exhaust port speed control and give an application
- Connect and operate a needle valve to control actuator speed
- Connect and operate a needle valve to control the speed of an actuator
- Describe the operation of a needle valve and give its schematic symbol
- Describe the main function of a pneumatic needle valve and give an application
- Describe the main function of a needle valve
- Describe the symptoms of quick exhaust valve failure and their causes
- Describe how to inspect and troubleshoot a quick exhaust valve
- Describe the function of an exhaust restrictor and give an application
- Describe the symptoms of exhaust restrictor failure
- Describe the operation and construction of a exhaust restrictor
- Describe the function of a relief valve and give an application
- Connect and adjust the pressure setting of a PRV
- Describe the operation of an integral check valve and give its schematic symbol
- Connect a relief valve in a circuit to limit pressure in the system
- Describe the operation of a direct-acting relief valve and give its schematic symbol
Gages and Instruments
- Read a pneumatic pressure gage
- Read a hydraulic pressure gage
- Describe how pressure gages are calibrated
- Measure Delta P across pneumatic components
- Connect and read a manometer
- Describe the operation of two types of manometers
- Describe the function of a flowmeter and give an application
- Connect and read a flow meter
- Describe the operation of two types of flowmeters and give their schematic symbol
- Connect and read a flowmeter
- List and give an advantage of each of three devices used to measure vacuum levels
- Connect and read a vacuum gage
- Convert between units of mercury and units of air pressure
- Convert between units of water column and units of mater pressure
Hoses
- Describe the three functions of an air line
- Describe how hose is specified
- Describe how to determine the length of a hose for an application
- Identify hose size given a specification
- Identify hose size by measurement
- Describe how to cut hose
- Cut off hose using a cut-off saw
- Describe how to calculate the pressure drop given hose size and flow rate
- Calculate the pressure drop given hose size and flow rate
- Describe how to maintain a hose system
Lubricators
- Describe the function of air lubrication and list three lubrication methods
- Describe the operation of three types of pneumatic lubricators and give an application of each
- Describe the function of a lubricator and give its schematic symbol
- Describe four symptoms of lubricator failure and their causes
- Describe how to inspect and troubleshoot a lubricator
Metal Tubing
- Describe how metal tubing is specified
- Select and size metal tubing for an application
- Select and size metal tubing for an application
- Describe how to select and size metal tubing for a given application
- Calculate the head loss given metal tubing size and flow rate
- Describe how to calculate the head loss given metal tubing size and flow rate
- Write a tubing specification given its dimensions
- Identify metal tubing given a specification
- Identify metal tubing specification by measurement
- Describe four types of metal tubing and give an application of each
- Describe the operation of a tube bender
- Use a tube bender to bend tubing to a certain angle
- Determine bend locations and angles given a tubing layout drawing
- Describe how to determine bend locations and angles
- Describe how to use a tube cutter to cut metal tubing
- Describe three methods of assembling metal tubing
- Describe how to solder metal tubing
- Cut, bend and assemble steel tubing using flared and flareless fittings
- Assemble copper tubing using flared and flareless fittings
- Describe how to assemble tubing using flared and flareless fittings
Motors
- Describe the function of a pneumatic motor and give an application
- Describe how to size a pneumatic motor
- List three types of hydraulic motors and give an application of each
- Describe the operation of a hydraulic motor and give its schematic symbol
- Describe the function of a hydraulic motor and give an application
- Calculate the air flow needed for a pneumatic motor
- Select a pneumatic motor
- List three common pneumatic motor designs and explain where they are used
- Describe the operation of a pneumatic motor and give its schematic symbol
- Define pneumatic motor torque and give its units of measurement
- Describe how to use a torque-speed curve to determine pneumatic motor speed
- Define three types of torque and give its units of measurement
- Describe four symptoms of pneumatic motor failure
- Troubleshoot a motor using an in-circuit test
- Describe how to inspect and troubleshoot a pneumatic motor
Pump and Reservoir
- Describe the operation of a hydraulic power unit
- Describe the operation of a fixed-displacement pump and give its schematic symbol
- Describe the operation of three types of fixed displacement pumps and give an application of each
- describe maintenance of a hydraulic power unit
Regulators
- Describe the operation of a pressure regulator and give its schematic symbol
- Describe the operation of a pressure regulator under flow conditions
- Describe the function of a pressure regulator valve and give an application
- Describe four symptoms of regulator failure and their causes
- Describe how to inspect and troubleshoot a regulator
- Describe the operation of a direct-acting PRV and give its schematic symbol
Safety
- Explain six pneumatic safety rules
- Describe eight pneumatic troubleshooting safety rules
- Piping safety test
- Describe the function of a lockout/tagout system
- Describe the operation of an electrical lockout/tagout system
- Describe the operation of a pneumatic lockout/tagout system
- Perform a lockout/tagout on a pneumatic system
- Describe seven rules of safe dress for working with piping
Theory
- Define pneumatic pressure and give its units of measurement
- Convert between absolute pressure and gage hydraulic pressure
- Define hydraulic pressure and give its units of measurement
- Convert between gage and absolute pressures
- Describe two methods of representing pressure
- Describe how to calculate the force output of an extending cylinder
- Describe how to calculate the force output of a hydraulic cylinder in retraction (pull)
- Describe how to calculate the actual force output of an extending cylinder
- Calculate the retraction force of a cylinder given its size and pressure
- Calculate the extension force of a cylinder given its size and pressure
- Describe how to calculate the force output of a cylinder in retraction (pull)
- State Pascal's Law and explain its significance in pneumatics
- State Pascal's Law and explain its significance in hydraulics
- Explain how force is multiplied using Pascal's Law
- Explain how force is multiplied using Pascal's Law
- State Boyle's Law and explain its significance
- Use Boyle's Law to calculate changes in pressure and volume
- Explain how a pneumatic system creates air flow
- Measure Delta P across a hydraulic component
- Explain how Delta P describes hydraulic resistance
- Explain how Delta P describes pneumatic resistance and explain its importance
- Define air flow rate and give its units of measurement
- Define flow rate and explain how it can be measured
- Define dew point and relative humidity and explain their importance
- Explain how water condenses in a pneumatic systems and its effect
- Define hydraulics and give an application
- Describe the function of a hydraulic schematic
- Describe the functions of five basic components of a hydraulic system
- Define pneumatics and give an application
- Explain how pressure is distributed in a hydraulic system
- Describe how to calculate the extend speed of a hydraulic cylinder
- Calculate the cylinder stroke time given its size and a flow rate
- Calculate the retract speed of a cylinder given is size and a flow rate
- Calculate the extend speed of a hydraulic cylinder given its size and a flow rate
- Describe how to calculate the stroke time of a cylinder
- Describe how to calculate the retract speed of a cylinder
Threaded Pipe
- Identify pipe size and type by measurement
- Write a pipe specification given its dimensions
- Identify pipe size given a specification
- Describe the function of a piping schematic drawing
- Read and interpret a piping schematic drawing
- Identify the pipe fitting schematic symbols
- Describe the function of an expansion joint and give an application
- Install an expansion joint
- Describe the operation of an expansion joint
Troubleshooting & Testing
- Describe two levels of pneumatic troubleshooting and give an application of each
- Define pneumatic troubleshooting and explain its importance
- Describe two methods of testing a pneumatic component and give an application of each
- Describe four types of in-circuit component tests and give an application of each
- Describe three pneumatic troubleshooting measurements and give an application of each
- Use a pressure test point to check system pressure
- Describe the construction of a pressure test point and give an application
- Describe how to interpret a pneumatic troubleshooting chart
- Describe how to use a flowchart to aid in troubleshooting
- Describe the construction of a troubleshooting flowchart
- Describe the function of a troubleshooting flowchart
- Describe the four methods of system level troubleshooting
- Describe how to use PLC I/O indicators to troubleshoot a pneumatic system process
- Troubleshoot a pneumatic system using PLC indicator lights
- Describe how to troubleshoot zero system pressure
- Troubleshoot high system pressure
- Troubleshoot low system pressure
- Describe how to troubleshoot high system pressure
- Describe how to troubleshoot low system pressure
Vacuum
- List two methods used to produce vacuums and give an advantage of each
- Define an vacuum and give three industrial applications
- Describe three symptoms of vacuum generator failure and their causes
- Describe how to inspect and troubleshoot a vacuum generator
- Describe two symptoms of vacuum cup failure and their causes
- Describe how to inspect and troubleshoot a vacuum cup
- Describe the function of an vacuum switch and give an application
- Describe how to inspect and troubleshoot a vacuum switch
- Describe a symptom of vacuum switch failure
- Describe the operation of a vacuum switch
- Describe the function of a vacuum pump and give an application
- Describe the operation of a reciprocating vacuum pump
- Describe how to inspect and troubleshoot a vacuum pump
Study Guide
Fluid Power Study Guide
This Study Guide is for Fluid Power, a base-level exam that focuses on pneumatic and hydraulic technology. It is appropriate for entry to intermediate level mechanics, electricians, technicians and technologists who will be involved in the application, installation, modification or troubleshooting of Fluid Power systems. This study guides includes test taking tips, the domains and competencies covered on the test, sample test questions, and detailed sample exam answers and explanations.