The best way to learn is by experimentation. These virtual hydraulic test rigs will help you to learn about fluid power in a safe and effective way. The program lets you operate eight different hydraulic components and system simulations. These are full mathematical models that respond in a similar way to the actual equipment, more akin to a flight simulation program than a simple PowerPoint animation.Each screen includes written and spoken assistance that will guide users through a range of different tests and experiments. Users will be guided on what to do and the significance of what they see.The hydraulic relief valve simulation is free but the in-app purchase is required to unlock the remaining 7 virtual test rig simulations. These include:1. Fundamental valve principles2. Pilot operated relief valve performance3. Directional and load holding circuits4.Proportional control valves5. Hydraulic motor circuit basics6. Logic control valve circuits7. Power unit real-time simulation8. Counterbalance valve performance