MCQOPTIONS
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| 1. |
Active materials of a lead-acid cell are: |
| A. | Lead peroxide, sponge lead and dilute sulfuric acid |
| B. | Lead peroxide and filler caps |
| C. | Lead peroxide and pillar |
| D. | Sponge lead and pillar |
| Answer» B. Lead peroxide and filler caps | |