Training

Build the skills. Pass the test.

Getting ready for a maintenance or skilled-trades hiring exam? Sharpen up with our free mechanical aptitude practice tests, then go hands-on with 3D simulators that let you use a multimeter and program a PLC like you would on the job.

Start practicing, free See the 3D simulators
  • Practice tests free with an account
  • 3D simulators: one-time purchase, lifetime access
Free account

Mechanical Aptitude Practice Tests

Prepare for the aptitude and behavioral tests employers use to hire maintenance and skilled-trades workers. Free with a CircaCircuits account, on any device or in the Windows app, with hands-on multimeter and ladder logic simulators.

  • 1,000+practice questions
  • 250+with diagrams
  • 8job-role tests
  • 19study lessons

1,000+practice tests completed

  • Tests built for Amazon RME, crane, multicraft, facilities and electrician jobs
  • Timed, real-length versions so test day feels familiar
  • Study guide, formula sheet and free multimeter and ladder logic simulators
Start practicing Open in the app
One-time · lifetime access

3D Training Simulators

Go beyond the practice questions. These full 3D trainers run in your browser and in the Windows app, walk you through guided lessons and let you make mistakes safely, so you learn what the equipment does and why it fails.

3D multimeter reading 120 V AC at a wall outlet

3D Multimeter Trainer

  • 9 guided lessons, beginner to advanced
  • Volts, ohms, diode test, capacitance and current
  • 120 V outlets and a 480 V 3-phase disconnect with lockout
 3D conveyor line with the PLC ladder logic editor open

3D Conveyor PLC Trainer

  • Training lines from a straight belt to a robotic storage floor
  • Ladder logic editor, HMI and live I/O tables
  • Inject faults, do repairs under lockout, or build your own line
 3D robotic fulfilment centre with dock doors, pack lines and robotic floors

Warehouse & Fulfilment Simulators

  • A cold-storage warehouse with cranes, a shuttle ASRS and palletizers
  • A five-storey fulfilment centre with 4 robotic floors and 120 dock doors
  • Follow an order from pick to pack, SLAM and the trailer

One-time purchase, lifetime access. No subscription and no expiry. Buy with a free account and it unlocks on the web and in the Windows app. Works best on a computer with a mouse.

Unlock the 3D trainers Get the Windows app
Windows app

CircaCircuits for Windows

The CircaCircuits app on your PC. Sign in with the same account to manage maintenance plans, work orders and messages, then add the 3D training simulators or the Engineering calculator, built on our Universal Manual, whenever you need them. Buy add-ons in the app or here; they unlock in both.

  • Your plans, service requests, equipment and messages, the same as on the web
  • 3D Multimeter, Conveyor PLC and Warehouse & Fulfilment simulators, run right in the app
  • Engineering: power source to final drive with a live 3D drivetrain. Free Starter plan, Pro and Team for advanced outputs
Download for Windows Create a free account
Trade program · Coming soon

Learn the trade from people who practice it.

We're building a hands-on trade program that delivers technical knowledge across many disciplines, for career starters, career changers and working technicians who want to broaden their skill set. It isn't open for enrollment yet: join the waitlist and we'll let you know first when sessions are scheduled.

  • Hands-on, practical instruction grounded in real service work
  • Learn directly from the people who run the business
  • Multi-discipline curriculum that builds employable, transferable skills
Join the waitlist Try a practice test

Coming soon Planned courses, subject to change

TP-101

Electronics Fundamentals

Circuits, components and the core principles behind every device.

TP-110

Soldering & Rework

Clean, reliable joints and component replacement at the board level.

TP-120

Diagnostics & Troubleshooting

A systematic method for finding faults quickly and confidently.

TP-130

Mechanical & Fluid Systems

Drives, motion assemblies and fluid systems found in industrial equipment.

TP-140

Preventative Maintenance

Inspection routines, scheduling and documentation that extend equipment life.

TP-150

Laser Engraving & Design

Artwork preparation, machine setup and finishing for professional results.

TP-160

Safety & Hazardous Environments

Safe work habits around high energy, heights, confined spaces and static-sensitive parts.

TP-170

Professional Practice

Customer communication, service reports and running a job the right way.

FAQ

Training questions.

Anything else? Call 413-896-2380 or send us a message.

Contact us
Are the practice tests really free?
Yes. Create a free CircaCircuits account and the mechanical aptitude practice tests, study guide and basic simulators are yours, on the web and in the Windows app. Start here.
Do the 3D simulators expire?
No. Each 3D simulator is a one-time purchase with lifetime access: no subscription and no expiry. Buy it once with your account and it stays unlocked on the web and in the Windows app.
Where do I buy the 3D simulators?
Sign in and open 3D training in the CircaCircuits app, on the web or in the Windows app. Checkout is a secure Stripe page, and your purchase unlocks in both.
When does the trade program start?
The trade program is coming soon and isn't taking enrollments yet. Join the waitlist and we'll contact you first when sessions are scheduled.

Want a seat in the trade program?

It's coming soon. Join the waitlist and we'll tell you first.

Free practice tests Join the waitlist