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Student & Learning Zone - City & Guilds
Mock exam question
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<blockquote data-quote="rich1" data-source="post: 555940" data-attributes="member: 35020"><p>Selectivity as a topic doesn't seem to be in the course material (not mentioned even once) which is why the question confused me a bit. Fully understand now though and passed the exam with a 100% score! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p><p></p><p>Oddly, the term descrimination is mentioned in a section about RCBO's, saying that multiple RCBO's allows discrimination, so only the circuit with the fault is interrupted. Nothing to do with descrimination on a circuit between a fuse and a breaker!</p><p></p><p>Thanks for all the help!</p></blockquote><p></p>
[QUOTE="rich1, post: 555940, member: 35020"] Selectivity as a topic doesn't seem to be in the course material (not mentioned even once) which is why the question confused me a bit. Fully understand now though and passed the exam with a 100% score! :cool: Oddly, the term descrimination is mentioned in a section about RCBO's, saying that multiple RCBO's allows discrimination, so only the circuit with the fault is interrupted. Nothing to do with descrimination on a circuit between a fuse and a breaker! Thanks for all the help! [/QUOTE]
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