An electrician tests a three-way switching circuit. The lighting load can be turned OFF and then ON at each of the three-way switch locations. However, when one three-way switch toggle is left in the up position, toggling the other three-way switch does not cause the lighting load to come on. The likely cause is __________.

a. an open grounding path
b. an open grounded path
c. the traveler wires are incorrectly connected to the traveler terminals on the switch
d. there is no electrical power at the switch


c. the traveler wires are incorrectly connected to the traveler terminals on the switch

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Proof tests are made at what percentage of the original factory voltage?

a. 20% b. 40% c. 60% d. 80%

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Which one of the following statements on troubleshooting data handling instructions is NOT true?

A) Verify that pointers do not point outside the memory boundaries. B) Use a large data set when troubleshooting data handling rungs to verify that data size is not a problem. C) Use the single-step option to scan one rung at a time. D) Use the temporary end (TND) instruction to stop scanning at points where addressing indexes and data transferred can be checked.

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United States citizens spend more money annually on cat and dog food than on baby food.

Answer the following statement true (T) or false (F)

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A(n) ____ is a clock designed to drive some number of units that display the time.

A. alarm B. watch program C. master clock D. atomic clock

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