General Studies · Lubrication and Lubricants
निम्नलिखित में से कौन सा अर्ध-ठोस स्नेहक (semi-solid lubricant) का एक उदाहरण है?
- 1खनिज तेल (Mineral oil)
- 2सिंथेटिक तेल (Synthetic oil)
- 3कार्बनिक तेल (Organic oil)
- 4ग्रीस (Grease)✓
सही उत्तर देखें
ग्रीस (Grease)
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