- What This Cheat Sheet Covers (and What It Does Not)
- Exam Format and Scoring Facts at a Glance
- The Five Written Domains: What to Memorize
- Core Calculations and Relationships
- The Six Job Performance Stations
- Fees, Registration and Allowed References
- Validity and Renewal in One Glance
- Symptom-to-Cause Quick Matrix
- A Domain-Ordered Review Schedule
- Frequently Asked Questions
- The written test is 75 multiple-choice questions in three hours; the passing standard is 70%.
- The Job Performance (JP) test is separate: three hours, 70% overall plus station-specific minimums.
- Base fees (professional member/nonmember): written USD 229/395, JP USD 195/285, combined USD 424/680.
- Submit your application at least 30 days before testing; certification lasts five years.
What This Cheat Sheet Covers (and What It Does Not)
This page is a one-page-style review for the Fluid Power Industrial Hydraulic Mechanic credential, issued and administered by the International Fluid Power Society (IFPS). It is publicly designated Industrial Hydraulic Mechanic (IHM) and abbreviated CFPIHM here. Nothing below applies to any other credential that happens to share the acronym.
The facts come from the public IFPS certification page, the current-linked subject matter outline, and IFPS fee, FAQ and recertification pages. We do not have access to live exam questions, members-only manuals or paid course contents, and nothing here claims otherwise. If a detail matters for your registration, confirm it against current IFPS candidate instructions. For a fuller walkthrough of preparation, see the CFPIHM study guide.
Exam Format and Scoring Facts at a Glance
The certification has two separate assessments. Candidates should treat them as two different skill checks rather than one exam with two parts.
| Item | Written Test | Job Performance (JP) Test |
|---|---|---|
| Format | 75 multiple-choice questions | Hands-on stations |
| Time | Three hours | Three hours |
| Delivery | Proctored, paper or online | Hands-on, in person |
| Passing standard | 70% | 70% overall plus station-specific minimum scores |
| Base fee (member / nonmember) | USD 229 / 395 | USD 195 / 285 |
The practical scoring rule is the one candidates most often overlook: a strong overall JP percentage does not rescue a station where you miss its minimum. Prepare every station, not just your favorites. For more on how the scoring works, read our breakdown of the CFPIHM passing score.
The Five Written Domains: What to Memorize
The written test is organized under five subject headings. IFPS does not publish percentage weights in the sources reviewed, so do not trust any site that quotes per-domain percentages. Treat all five as examinable. The wider content map is in our guide to all 11 CFPIHM content areas.
Domain 1: Understand hydraulic components and their operation
This is the vocabulary and recognition domain. You must know what each component does, how it is controlled and how it is identified.
- Pumps: fixed versus variable displacement, and how pump controls (such as pressure compensation) change output
- Valves: pressure, directional and flow control families and what each does to the circuit
- Actuators: cylinders and motors, and how they convert fluid power to force or torque
- Reservoirs, filters, accumulators and heat exchangers, including why each exists
- Reading component model codes and nameplate information
Domain 2: Understand loads and motion
This domain is where the arithmetic lives. Expect questions that ask you to relate pressure, area, force, flow, speed, torque and power.
- Pascal's law and how pressure transmits through a confined fluid
- Force from pressure and area; speed from flow and area
- Torque and power relationships for hydraulic motors and pumps
- How load type (resistive, overrunning) changes what the circuit must do
Domain 3: Maintain and repair hydraulic systems
Maintenance questions reward procedural discipline: the right order of steps and the right precaution before opening a system.
- Commissioning and start-up practice, including bleeding air and verifying settings
- Seal selection, installation and the failure modes that follow poor installation
- Fluid cleanliness, filtration and routine inspection
- Coupling alignment between pump and prime mover
- Safely relieving stored energy before disassembly
Domain 4: Troubleshoot hydraulic systems
Troubleshooting questions give you a symptom and ask for the most likely cause or the best next test. Use the matrix later in this article to build the reflex.
- Heat generation, noise and cavitation
- Pressure loss and lack of pressure build-up
- Cylinder drift and slow or erratic motion
- Choosing a logical diagnostic sequence rather than replacing parts by guesswork
Domain 5: ElectroHydraulic control systems
This domain covers where electrical control meets fluid power.
- Solenoid-operated and proportional valve basics
- Sensors and feedback devices
- Open-loop versus closed-loop control concepts
- Basic electrical diagnosis, which also supports the multimeter station
Core Calculations and Relationships
You do not need to memorize exotic derivations, but you should be fluent with the relationships below and be able to rearrange them. Because an approved calculator is allowed on the written test, speed and correct setup matter more than mental arithmetic.
- Pressure: force divided by area. Rearranged, force equals pressure times area.
- Cylinder speed: flow rate divided by piston area (watch your unit conversions).
- Hydraulic power: proportional to pressure times flow; know the standard unit-conversion form your reference book uses.
- Torque: motor torque follows pressure and displacement; know the direction of the relationship.
- Pascal's law: pressure applied to a confined fluid transmits equally throughout it.
Key Takeaway
Most calculation errors on this credential are unit errors, not concept errors. Write units on every line, and check that your answer is reasonable (a bigger piston at the same pressure must produce more force, and the same flow must produce less speed).
The Six Job Performance Stations
The practical outline lists six separate JP station headings. These are practical assessment tasks, not written domains, and they are why the hands-on component deserves its own preparation block. Our difficulty guide explains why candidates often find the practical side the bigger adjustment.
Domain 6: Identify Fluid Power Symbols
Recognize standard graphic symbols for pumps, motors, valves, actuators and conditioning components, and read how they connect in a schematic.
Domain 7: Identify Fasteners and Fittings
Identify common thread types, fitting styles and fasteners, and know which mate with which.
Domain 8: Use of Multimeter
Take voltage, resistance and continuity readings correctly, with the right range and lead placement.
Domain 9: Measure a Cylinder Piston
Use measuring tools such as a steel scale, digital caliper and micrometer to measure piston features accurately.
Domain 10: Fluid Conductors
Identify and correctly specify hose, tube and pipe conductors and understand their basic selection concerns.
Domain 11: Tube Bend and Flare
Bend tube to a specified shape and form a flare, with attention to accuracy and finish.
Safe rehearsal matters here. Practice measuring and bending on scrap material, wear appropriate eye protection when bending and flaring, and never practice live-circuit multimeter work without proper electrical safety training.
Fees, Registration and Allowed References
Costs split into exam fees, optional membership and any training you choose to buy. Keep these separate when you budget; our certification cost breakdown goes deeper.
- Written: USD 229 (professional member) or USD 395 (nonmember). The fee includes the electronic study manual; a printed copy adds USD 20 at application.
- JP: USD 195 (member) or USD 285 (nonmember).
- Combined base total: USD 424 (member) or USD 680 (nonmember). Membership, training and any proctor or event charges are additional.
- Membership: optional.
- Timing: submit your application at least 30 days before testing. Do not assume a shorter guaranteed deadline from the fee policy's four-week wording.
- JP transfer: a JP pass within the preceding five years can satisfy another mechanic or technician certification's practical requirement. The Connector and Conductor certification is excluded from this rule.
| Written-test reference item | Allowed? |
|---|---|
| Qualifying bound, copyrighted fluid power reference books | Yes |
| Approved calculator | Yes |
| IFPS study manuals | No |
| IFPS pretests | No |
| Loose-leaf reference notes | No |
For eligibility questions, see the CFPIHM requirements guide, and for scheduling, the exam dates and deadlines guide.
Validity and Renewal in One Glance
- Certification is valid for five years.
- Mechanic renewal requires 15 Professional Development Points (PDP) earned through qualifying industry experience and/or education, plus an application and the applicable fee.
- Standard first-certification renewal fee: USD 110 for professional members, USD 280 for nonmembers.
Start logging qualifying activity early rather than reconstructing it in year five.
Symptom-to-Cause Quick Matrix
Domain 4 questions often reduce to pattern recognition. This matrix is a memory aid, not a substitute for diagnosing a real machine, where you verify with gauges and measurements.
| Symptom | Common Suspects | First Checks |
|---|---|---|
| Excessive heat | Relief valve bypassing, worn pump, restricted cooling, low fluid level | Fluid level, cooler operation, relief setting |
| Noisy pump | Cavitation from restricted inlet, aeration, misalignment | Suction line and strainer, fluid level, coupling alignment |
| No or low pressure | Relief set too low or stuck open, worn pump, internal leakage | Gauge at pump outlet, relief valve condition |
| Cylinder drift | Piston seal leakage, valve spool leakage, missing holding valve | Isolate the cylinder, check seals and valve leakage |
| Slow or erratic motion | Contaminated fluid, air in system, flow control or pump wear | Fluid condition, bleed air, verify flow settings |
Key Takeaway
When a question offers a drastic repair (replace the pump) alongside a simple verification (check fluid level and inlet restriction), the exam usually rewards the cheaper, more logical diagnostic step first.
A Domain-Ordered Review Schedule
Generic study habits matter less than ordering. This sequence follows how the content builds and keeps hands-on practice from being left to the last minute. Adjust the length to your own timeline.
Foundations first
- Domain 1 components and Domain 6 symbols together, since symbols map directly to components
- Domain 2 formulas, with unit-tracking practice
Maintenance and diagnosis
- Domain 3 procedures and Domain 4 symptom reasoning
- Domain 7 and Domain 10 identification of fittings and conductors
Electrical and hands-on
- Domain 5 electrohydraulics and Domain 8 multimeter practice
- Domain 9 measuring and Domain 11 bend and flare reps
Mixed review
- Timed written-style question sets using your allowed reference book
- Station rehearsal against current IFPS instructions
IFPS also lists official preparation resources, including a public Hydraulic Mechanic Training Modules description covering IHM and MHM, with more than 200 practice questions and approximately 18-24 learning hours advertised. That is preparation material, not an exam specification, and its question count and hours do not replace the written test format above. For broader planning, see the CFPIHM training overview, and to test yourself, use the CFPIHM practice tests.
Frequently Asked Questions
The written test has 75 multiple-choice questions with a three-hour time limit. It is proctored and delivered on paper or online. The practical JP test is a separate three-hour assessment.
The written passing standard is 70%. The JP test requires 70% overall plus station-specific minimum scores, so a weak station can cause a failure even if your overall percentage is high.
IFPS permits qualifying bound copyrighted fluid power reference books and an approved calculator. IFPS study manuals, pretests and loose-leaf reference notes are excluded. Confirm current rules in the IFPS FAQ before test day.
The calculated combined base total for written plus JP is USD 424 for professional members and USD 680 for nonmembers. Membership, training and any proctor or event charges are additional, and a printed manual adds USD 20 at application.
Certification is valid for five years. Mechanic renewal requires 15 Professional Development Points from qualifying experience and/or education, plus an application and fee. Whether the credential pays off for you depends on your role; see our ROI analysis for how to weigh it.