Motor Control Rescue
ElectricalBring a tripping conveyor drive back online without guessing.
DiagnosticInteractive UI12 min
Circuit Rescue
Fault-find and size a simple control circuit using Ohm's Law.
Difficulty: BasicPlay time: about 12 minutes
Play Circuit Rescue nowOpens the full-screen game - or play in place below.
Workplace narrative
You have just started the afternoon maintenance shift. A packaging line stopped mid-run: the conveyor motor will not start and the panel shows a tripped breaker. Production is losing money every minute it is down, but you will not rush - a wrong guess can damage the motor or hurt someone. Work the circuit step by step: identify the likely fault, calculate what the circuit should be doing, and dial in the correct resistance to get the motor current back on target.
Why this skill matters
Fault-finding is the core daily skill of industrial electricians and controls technicians. Strong performance here maps to the Electrical and Instrumentation learning paths and to troubleshooting roles in manufacturing, utilities and marine operations.
Learning objectives
- Match electrical symptoms to likely circuit faults
- Apply Ohm's Law (V = I x R) and the power formula (P = V x I)
- Select correct resistance values to hit a target current
- Follow a safe troubleshooting sequence from symptom to verification
Equipment and components
24 V DC control circuitMultimeterProtective fuseContactors and relaysAdjustable resistor (test rig)Conveyor drive motor
Technical principles
- Current only flows in a complete, closed circuit
- Resistance determines how much current a given voltage pushes
- Fuses and breakers protect circuits by opening on overcurrent
- Power dissipated in a component is voltage times current
How to play
- Read each fault description carefully before choosing an answer
- For calculation questions, rearrange the formula and convert units first
- In the dial task, adjust resistance until the meter reads the target current
- Review every explanation - it contains the reasoning you will reuse later
Rules
- Each question is worth 10 points plus streak bonuses
- Correct answers build a streak; a 2+ streak adds bonus points
- A hint costs 3 points (use only when stuck)
- Pass each level with 70% or more to continue
Formula and calculation section
Ohm's Law
V = I x R
Voltage (volts) = current (amps) x resistance (ohms). Rearrange for any variable.
Electrical Power
P = V x I
Power (watts) = voltage x current. Used to check heater and load sizing.
Series Resistance
Rt = R1 + R2 + ...
Resistances in series add together.
Need help with the mathematics?
Open the relevant mathematics module, practice the calculation, then return to the scenario.
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Play right here
The full game runs on this page - no account, no install. Or open the full-screen play mode with the button above.
Level 1/3Score 0Streak 0Hints 0
Your shift briefing
You have just started the afternoon maintenance shift. A packaging line stopped mid-run: the conveyor motor will not start and the panel shows a tripped breaker. Production is losing money every minute it is down, but you will not rush - a wrong guess can damage the motor or hurt someone. Work the circuit step by step: identify the likely fault, calculate what the circuit should be doing, and dial in the correct resistance to get the motor current back on target.
Feedback approach
Every answer, right or wrong, comes with a short technical explanation. Wrong answers explain the actual fault logic so the next diagnostic decision is better informed.
Common mistakes
- Forgetting to convert milliamps to amps before calculating
- Using the power formula where Ohm's Law applies (and vice versa)
- Blaming the motor before checking protection and wiring
- Ignoring an open fuse because the symptom 'looks like' a motor fault
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Keep learning
Return to the Electrical hub to see the full skill path.