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Practical Construction and Testing
Quick questions on Fault finding and testing explained: O-Level Electronics Practical Construction and Testing
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are common faults?Show answer
Most faults in a newly built circuit fall into a few types:
What is testing against the specification?Show answer
Once the circuit works, test it against its design specification. Predict the voltages and currents from the circuit theory, then measure them and compare. Small differences are expected from component tolerances; large differences point to a remaining problem. Honest comparison of measured against calculated values is what good testing and good coursework demand.
What are not comparing with expected values?Show answer
A measurement only helps if you know what it should be; predict from the design, then compare.
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