When a spinning top test is performed on a single-phase, ful…
When a spinning top test is performed on a single-phase, fully rectified equipment, a radiograph exhibiting four dots would indicate:1. An accurate timer, if set on 1/15 second2. A malfunctioning timer if set on 1/15 second3. An accurate timer, if set on 1/30 second4. An inaccurate timer, if set on 1/30 second
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