General Studies · Automobile Engineering
इंजन में लुब्रिकेंट (स्नेहक) तेल का मुख्य कार्य क्या है?
- 1सफाई करना
- 2तापमान कम करना
- 3कीचड़ (स्लज) बनाना
- 4घर्षण को कम करना✓
सही उत्तर देखें
घर्षण को कम करना
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