Practice

A 125 V vented lead-acid station battery is sized by IEEE 485 to carry a constant 40 A load for 8 hours during a station blackout. The cells will be replaced when their capacity falls to 80% of rating. At the lowest expected electrolyte temperature, 60°F, they deliver only 90% of their rated (77°F) capacity. A design margin of 1.10 applies. The minimum rated capacity at the 8-hour rate is most nearly:

Click the question or Tab into it, thenA–Dto choose·Enterto check