I didn't write this test. In my original post I indicated that I answered them from the book and then realized that the answers were already available. That was how I determined which questions would be suspect. That is the ones I missed using the book.
That said, the answer for # 1 refers to section 110.9 Interupting Rating. It does not refer to definitions. If you read it carefully they stress that the operating voltage of a breaker is a known value.
The last sentence explains that the interupting level of current is variable.
Voltage is a defining criterial in selecting breakers. Not just 120/240 & 277/480 but, 480 Y & 480 delta. This became a problem when 3 Phs breakers were installed on a Delta panel with no midpoint ground. All line/phase to ground voltage was equal to phase to phase voltage.
I do not consider this a good question.
#9 Part II includes reflecting & other pools. Not just swimming pools.
#10 I put down A. Based on 702.4 If they have D as the answer then that is an error.
[Edit] Their answer is B, approved by AHJ. A blanket answer that is always right even when the AHJ is wrong.
Remember, finding the errors IN the test may be part OF the test.
Alan--Inspector.
[This message has been edited by Alan Nadon (edited 04-29-2005).]
