Surely you have switched a breaker on and its popped? You know, when someone rings you and says the breaker wont go on, so you go and have a look and switch it and it flicks off...
Personally I prefer to at least give the circuit a bit of a check over before just banging it back on in the blind hope of possibly not killing my client or one of their family after I leave , in the event of the mcb tripping mechanism having failed under the last overload !?:speechless:
Edit ; I may have been a little forward with this post , but you go from this in # 43 to saying how easy it was to pass a qualification in # 50 and again in # 68 which was once regarded as a reasonable benchmark for the level of knowledge , one held in this industry .
Not much in the way of inspection and testing going on with that method of fault finding is there !?