General Studies · Automobile Engineering
एक रख-रखाव मुक्त (मेंटेनेंस-फ्री) बैटरी में:
- 1लेड-एंटीमनी प्लेट ग्रिड होता है
- 2अम्ल (एसिड) नहीं होता है
- 3लेड-कैल्शियम प्लेट ग्रिड होता है✓
- 4पानी नहीं होता है
सही उत्तर देखें
लेड-कैल्शियम प्लेट ग्रिड होता है
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