20160107 One question per day
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20160107 Daily Question: At the tower of an independent lightning rod, at the ends of overhead lightning conductors, and at each support of such conductors, at least ( ) down conductors should be installed. A. One B. Two C. Three D. Four The answer is A
A. One. ----------------------
A. One ~~~~~~~~~~~~~~~
At least (A) down conductors should be provided at the towers of independent lightning rods, at the ends of overhead lightning conductors, and at each support of such conductors.
At least (A. one) down conductor should be provided at the tower of an independent lightning rod, at the ends of overhead lightning conductors, and at each support of such conductors.
At least (B) down conductors should be provided at the towers of independent lightning rods, at the ends of overhead lightning conductors, and at each support of such conductors. A. One B. Two C. Three D. Four
At least (b) down conductors should be provided at the towers of independent lightning rods, at the ends of overhead lightning conductors, and at each support of such conductors. B. Two roots