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1/8 inch – 1/4 inch. 1/8 inch – 3/8 inch. 1/4 inch – 3/8 inch. 1/4 inch – 1/2 inch. A wiring enclosure box with a usable volume of 42 cubic inches is divided into three equal spaces by two nonmetallic dividers. What is the usable volume of each space? 13 cubic inches. 13.3 cubic inches. 14 … ................
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