About this practice
Diagnose before replacing
Fault-finding practice rewards observation, measurement and confirmation before a repair decision is made.
Prepare to work safely around batteries, select meter functions, protect circuits with correct fuses and use voltage-drop testing to locate resistance in loaded circuits.
How to use this test
- Complete every question without checking an answer elsewhere.
- Read the reason for every incorrect answer in your result.
- Practise weak skills hands-on with competent supervision.
Core areas for this trade
Battery safety
Prevent short circuits, sparks, acid exposure and incorrect disconnection or reconnection.
Fuses and circuit protection
Use the specified rating and investigate the cause instead of bypassing protection.
Meter use
Choose voltage, resistance or current testing only when the circuit condition and connection method are safe.
Independent practice content — not an official exam or official question bank.