- RMTT Domain Overview: How the 60 Questions Break Down
- Domain 1: Hydraulics and Pneumatics
- Domain 2: Welding and Rigging
- Domain 3: Power Transmission, Lubrication, Mechanical Maintenance, and Shop Machines, Tools & Equipment
- Domain 4: Pumps, Piping, and Combustion
- Domain 5: Motors, Control Circuits, and Schematics & Print Reading
- Domain 6: Digital Electronics, Power Supplies, Computers & PLC, and Test Instruments
- Domain 7: Basic AC/DC Theory, Power Distribution, and Electrical Maintenance
- Why Ramsay Doesn't Publish Fixed Domain Weights
- Scheduling Your Study Around the Seven Domains
- Frequently Asked Questions
- The RMTT (Ramsay MultiCrafTest Form A6, SKU OL100-A) covers exactly seven craft-area groupings in 60 multiple-choice items.
- Domain 3 and Domain 6 bundle several sub-topics each, so they demand broader review than a single-topic domain.
- Testing runs $29 per administration for 20-99 credits and $27 for 100+, with credits that never expire.
- Every sitting is proctored by an employer or third-party agent through Ramsay's Online Testing System.
RMTT Domain Overview: How the 60 Questions Break Down
The Ramsay Maintenance Technician Test - commercially delivered as Ramsay Corporation's MultiCrafTest Form A6 (online SKU OL100-A) - is a 60-item multiple-choice assessment built to measure journey-level mechanical and electrical maintenance knowledge. Unlike a licensing exam with a syllabus you can self-select, the RMTT is a fixed-content pre-employment screening tool. Employers use it to compare applicants for maintenance technician, industrial mechanic, and multicraft roles, and the entire test is organized around seven official craft-area groupings.
Because this is a single 60-question form covering seven distinct domains, no domain gets an enormous number of items. That reality changes how you should prepare compared with a longer, single-subject exam. If you haven't already reviewed the mechanics of the test itself, start with our RMTT Study Guide 2026: How to Pass on Your First Attempt for a full walkthrough of format and pacing before diving into domain-level prep.
Domain 1: Hydraulics and Pneumatics
Hydraulics and Pneumatics
This domain tests your understanding of fluid power systems used to transmit force and motion in industrial equipment. Candidates need working knowledge of both liquid-based (hydraulic) and air-based (pneumatic) systems, since maintenance technicians routinely troubleshoot both.
- Cylinder, valve, and actuator function and symbols
- Pressure, flow, and force relationships in fluid power circuits
- Common hydraulic pump types and pneumatic compressor basics
- Reading simple fluid power schematics
Candidates coming from a purely electrical background often underestimate this domain. If hydraulics and pneumatics were not part of your prior training, budget extra review time here rather than assuming general mechanical aptitude will carry you through.
Domain 2: Welding and Rigging
Welding and Rigging
This grouping covers fabrication and material-handling knowledge that maintenance crews use for repairs, equipment installation, and safe load movement.
- Common welding processes and appropriate use cases
- Weld joint types and basic weld symbols
- Sling, hitch, and rigging hardware selection
- Load capacity awareness and rigging safety principles
Rigging questions in particular tend to test judgment as much as memorization - recognizing an unsafe lift setup or an incorrect hitch configuration is a common question style on this domain.
Domain 3: Power Transmission, Lubrication, Mechanical Maintenance, and Shop Machines, Tools & Equipment
Power Transmission, Lubrication, Mechanical Maintenance, and Shop Machines, Tools & Equipment
This is the broadest domain on the RMTT, folding together four related mechanical topic clusters. Because it spans so much ground, it deserves proportionally more of your study calendar than a narrower domain.
- Belts, chains, gears, couplings, and bearings
- Lubricant types, application methods, and preventive maintenance intervals
- General mechanical troubleshooting and repair sequencing
- Correct identification and safe use of hand tools, power tools, and shop machines
Key Takeaway
Treat Domain 3 as four mini-topics, not one. Study power transmission, lubrication, mechanical maintenance, and shop tools as separate review sessions so none of the four gets shortchanged.
Domain 4: Pumps, Piping, and Combustion
Pumps, Piping, and Combustion
This domain focuses on fluid-moving equipment and the systems that support it, plus basic combustion principles relevant to industrial heating and engine-driven equipment.
- Centrifugal versus positive-displacement pump operation
- Piping materials, fittings, and common installation practices
- Basic combustion process and fuel-air relationships
- Troubleshooting cavitation, leaks, and flow restrictions
Many candidates studying pumps and piping find it useful to connect this domain conceptually with Domain 1, since fluid behavior concepts overlap between hydraulic systems and pump/piping systems.
Domain 5: Motors, Control Circuits, and Schematics & Print Reading
Motors, Control Circuits, and Schematics & Print Reading
This domain shifts into electrical maintenance territory, testing whether a candidate can both understand motor operation and interpret the diagrams technicians use on the job.
- AC and DC motor types, starting methods, and common failure modes
- Control circuit components: relays, contactors, timers, switches
- Ladder diagram and wiring schematic interpretation
- Print reading conventions and symbol recognition
Schematic reading questions are a recurring RMTT question style - expect to be shown a diagram excerpt and asked to identify a component, trace a circuit path, or spot a wiring error.
Domain 6: Digital Electronics, Power Supplies, Computers & PLC, and Test Instruments
Digital Electronics, Power Supplies, Computers & PLC, and Test Instruments
Like Domain 3, this is a compound domain covering modern electronic maintenance skills alongside the instruments used to diagnose them.
- Digital logic basics and common electronic components
- Power supply types and function within control systems
- Programmable logic controller (PLC) fundamentals and I/O concepts
- Multimeter, oscilloscope, and other test instrument usage
Facilities that have modernized their equipment lean heavily on PLC-literate technicians, which is one reason Ramsay bundles digital electronics and PLC fundamentals into a single tested area. If you're unsure whether your background covers this material, review RMTT Requirements 2026: Eligibility, Prerequisites & How to Qualify to see what prior experience employers typically expect before test day.
Domain 7: Basic AC/DC Theory, Power Distribution, and Electrical Maintenance
Basic AC/DC Theory, Power Distribution, and Electrical Maintenance
This domain anchors the electrical side of the exam with foundational theory and applied maintenance knowledge.
- Ohm's Law, voltage, current, resistance, and power calculations
- AC versus DC circuit characteristics and waveform basics
- Power distribution components: transformers, panels, breakers
- Electrical safety and general maintenance troubleshooting sequence
Because AC/DC theory underpins several other domains - motors, control circuits, and digital electronics all rely on it - many candidates find it efficient to review Domain 7 early and revisit it after finishing the other electrical-leaning domains.
Why Ramsay Doesn't Publish Fixed Domain Weights
Ramsay does not publish a percentage breakdown showing exactly how many of the 60 questions come from each domain, and it's important not to guess at numbers that aren't confirmed. What we do know is that all seven domains listed above are part of Form A6, and that compound domains like Domain 3 and Domain 6 cover more sub-topics than single-focus domains like Welding and Rigging. That structural difference alone is a reasonable signal for where to invest extra review time, even without an official weighting chart.
If you want a deeper discussion of how question difficulty and content spread affect overall exam difficulty, see How Hard Is the RMTT Exam? Complete Difficulty Guide 2026. And if your primary concern is simply what score you need across all seven domains combined, our RMTT Passing Score 2026: Exactly What You Need to Pass guide breaks down exactly what "passing" means on this assessment.
| Domain | Core Focus | Sub-Topics Bundled In |
|---|---|---|
| 1. Hydraulics and Pneumatics | Fluid power systems | 2 |
| 2. Welding and Rigging | Fabrication & material handling | 2 |
| 3. Power Transmission, Lubrication, Mechanical Maintenance, Shop Machines/Tools | General mechanical maintenance | 4 |
| 4. Pumps, Piping, and Combustion | Fluid-moving equipment | 3 |
| 5. Motors, Control Circuits, Schematics & Print Reading | Electrical machines & diagrams | 3 |
| 6. Digital Electronics, Power Supplies, Computers & PLC, Test Instruments | Modern electronic maintenance | 4 |
| 7. Basic AC/DC Theory, Power Distribution, Electrical Maintenance | Foundational electrical theory | 3 |
Scheduling Your Study Around the Seven Domains
Because the RMTT bundles multiple sub-topics into several domains, a simple week-by-week structure built around the domain list - rather than a generic study calendar - tends to work best. The order below front-loads the two compound domains so they get the most runway.
Domain 3 Foundations
- Power transmission components: belts, chains, gears, bearings
- Lubrication types and intervals
- Shop tool identification and safe use
Domain 7 and Domain 5
- AC/DC theory and Ohm's Law calculations
- Motor types and control circuit components
- Schematic and print reading practice
Domain 6 Deep Dive
- Digital electronics basics
- PLC fundamentals and I/O logic
- Multimeter and test instrument scenarios
Domains 1, 2, and 4, Plus Full Review
- Hydraulics/pneumatics circuit basics
- Welding processes and rigging safety
- Pumps, piping, and combustion fundamentals
- Timed practice covering all seven domains
If you'd rather use general study techniques like spaced repetition or timed drills layered on top of this schedule, apply them to whichever domain box gave you the most trouble in Week 1 or Week 2 - don't spread generic review evenly across all seven, since the compound domains need more repetition than the single-topic ones. Running full-length practice sets through our RMTT practice test platform is one of the more direct ways to see which of the seven domains still needs work before you schedule your official sitting.
Key Takeaway
Front-load Domain 3 and Domain 6 in your study plan - they cover the most sub-topics - and save the narrower domains (Welding and Rigging, Hydraulics and Pneumatics) for later review passes.
Registration, Proctoring, and Cost Mechanics Tied to the Domains
Domain content doesn't exist in a vacuum - how you register and pay affects how you should plan your review. Employers administer the RMTT through Ramsay's Online Testing System, and every sitting must be proctored by a company representative or an approved third-party agent. You cannot simply log in and take it unsupervised at home. Current pricing runs $29 per administration for 20-99 credits and $27 per administration for 100 or more, and purchased credits do not expire, which matters for employers testing candidates across all seven domains in batches over time.
Spanish, alternate-equivalent, and scrambled versions of the test are also available, though the underlying seven domains remain identical across versions - only the language or item order changes. For a complete pricing breakdown, see RMTT Certification Cost 2026: Complete Pricing Breakdown, and if you need to coordinate testing windows with an employer's hiring timeline, check RMTT Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Before you register, it's worth confirming this assessment actually matches the role you're pursuing. Because the RMTT is a pre-employment screening tool rather than a renewable certification, some candidates confuse it with other credentials sharing similar names. Our What Is RMTT? and RMTT Certification explainers clarify exactly what the test does - and doesn't - certify, and RMTT Jobs outlines the kinds of maintenance technician roles that typically require it.
Once you've confirmed the seven domains above match what your target employer expects, the fastest way to close knowledge gaps is targeted practice against realistic questions for each craft area. You can start building domain-by-domain familiarity right now on the main RMTT practice platform, then return to this guide to re-check which domains still need another review pass.
Frequently Asked Questions
The RMTT (MultiCrafTest Form A6) covers seven official craft-area domains across 60 multiple-choice questions total.
PLC fundamentals fall under Domain 6: Digital Electronics, Power Supplies, Computers & PLC, and Test Instruments, alongside multimeter and oscilloscope usage.
No official percentage breakdown by domain is published. The seven domains are confirmed, but exact per-domain question counts are not disclosed.
The core seven domains stay consistent, though Spanish, alternate-equivalent, and scrambled versions of the form exist for different administration needs.
Compound domains like Domain 3 and Domain 6 cover more sub-topics, so they typically warrant more study time than narrower domains like Welding and Rigging.